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		<title>The Sansui Story: Legendary Vintage Audio Equipment</title>
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		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Tue, 21 Jan 2025 10:49:50 +0000</pubDate>
				<category><![CDATA[Audio Vintage]]></category>
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					<description><![CDATA[<p>History of Sansui – a legend of vintage audio equipment The beginnings of Sansui – Japanese precision and innovation Sansui Electric Co., Ltd. was founded in 1947 in Tokyo by Kosaku Kikuchi. Initially specializing in the production of audio transformers, it quickly began to develop its technologies in the field of high-quality Hi-Fi equipment. Thanks [&#8230;]</p>
<p>Artykuł <a href="https://retrohifi.pl/en/history-of-sansui-vintage/">The Sansui Story: Legendary Vintage Audio Equipment</a> pochodzi z serwisu <a href="https://retrohifi.pl/en/">RetroHiFi - Vintage Audio, Serwis Amplitunerów</a>.</p>
]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph"><strong>History of Sansui – a legend of vintage audio equipment</strong></p>



<p class="wp-block-paragraph"><strong>The beginnings of Sansui – Japanese precision and innovation</strong></p>



<p class="wp-block-paragraph">Sansui Electric Co., Ltd. was founded in 1947 in Tokyo by Kosaku Kikuchi. Initially specializing in the production of audio transformers, it quickly began to develop its technologies in the field of high-quality Hi-Fi equipment. Thanks to its precision of workmanship and passion for sound, Sansui gained a reputation as a premium brand among audiophiles around the world.</p>



<p class="wp-block-paragraph"><strong>The golden era of Sansui – the 70s and 80s</strong></p>



<figure class="wp-block-image size-full is-resized"><img fetchpriority="high" decoding="async" width="534" height="564" src="https://retrohifi.pl/wp-content/uploads/2025/01/耕作菊池.jpg" alt="" class="wp-image-3022" style="width:211px;height:auto" srcset="https://retrohifi.pl/wp-content/uploads/2025/01/耕作菊池.jpg 534w, https://retrohifi.pl/wp-content/uploads/2025/01/耕作菊池-284x300.jpg 284w" sizes="(max-width: 534px) 100vw, 534px" /></figure>



<p class="wp-block-paragraph">The company&#8217;s greatest boom came in the 70s and 80s, when Sansui became one of the leading manufacturers of amplifiers, tuners and receivers. Models such as the Sansui AU-717, Sansui G-9000 and Sansui 9090DB are today considered icons of vintage equipment. These products were distinguished not only by their excellent sound quality, but also by their solid workmanship and elegant design.</p>



<figure class="wp-block-image size-full"><img decoding="async" width="973" height="996" src="https://retrohifi.pl/wp-content/uploads/2025/01/HQ.jpg" alt="" class="wp-image-3024" srcset="https://retrohifi.pl/wp-content/uploads/2025/01/HQ.jpg 973w, https://retrohifi.pl/wp-content/uploads/2025/01/HQ-293x300.jpg 293w, https://retrohifi.pl/wp-content/uploads/2025/01/HQ-768x786.jpg 768w, https://retrohifi.pl/wp-content/uploads/2025/01/HQ-600x614.jpg 600w" sizes="(max-width: 973px) 100vw, 973px" /></figure>



<p class="wp-block-paragraph"><strong>Sansui and tube and transistor amplifiers</strong></p>



<p class="wp-block-paragraph">At the beginning of its activity, the company focused on tube amplifiers, but in the 1960s it began to produce transistor amplifiers, which gained immense popularity. The legendary AU-X series was a breakthrough in the field of class A amplifiers, offering unparalleled sound quality and durability.</p>



<p class="wp-block-paragraph"><strong>The decline and end of Hi-Fi equipment production</strong></p>



<p class="wp-block-paragraph">In the 1990s, Sansui began to lose its position in the market due to increasing competition and changes in consumer preferences. The company gradually moved production to China, and the quality of the equipment began to decline. Finally, in the 2000s, Sansui withdrew from the production of Hi-Fi equipment, focusing on consumer electronics and licensing its brand.</p>



<p class="wp-block-paragraph"><strong>Why is Sansui vintage equipment so valued?</strong></p>



<p class="wp-block-paragraph">Today, Sansui devices from the 70s and 80s are sought after by collectors and vintage equipment enthusiasts. Their exceptional sound quality, durability and classic design mean that some models command high prices on the secondary market. If you are looking for a vintage amplifier with a warm, analog sound, Sansui is a brand worth trusting.</p>



<p class="wp-block-paragraph"><strong>Where to buy Sansui vintage equipment?</strong></p>



<p class="wp-block-paragraph">To find original Sansui equipment in good condition, it is worth browsing online auctions, audiophile forums and specialist Hi-Fi stores. Before buying, it is worth paying attention to the technical condition of the device and the possible need for renovation.</p>



<p class="wp-block-paragraph">Summary</p>



<p class="wp-block-paragraph">Sansui is a legend in the Hi-Fi world, whose legacy continues to this day. Although the company no longer produces audio equipment, its iconic amplifiers and receivers still enjoy great recognition among vintage sound enthusiasts. If you are looking for equipment that combines Japanese precision with unique sound, Sansui is a brand worth having in your collection.</p>



<p class="wp-block-paragraph">We encourage you to visit the website: <a href="https://auralhifi.com/pages/sansui" target="_blank" rel="noreferrer noopener">https://auralhifi.com/pages/sansui</a></p>


<p class="wp-block-tag-cloud"><a href="https://retrohifi.pl/en/tag/amplituner-sansui/" class="tag-cloud-link tag-link-171 tag-link-position-1" style="font-size: 8pt;" aria-label="amplituner sansui (1 item)">amplituner sansui</a>
<a href="https://retrohifi.pl/en/tag/amplituner-vintage/" class="tag-cloud-link tag-link-172 tag-link-position-2" style="font-size: 14.3pt;" aria-label="amplituner vintage (2 items)">amplituner vintage</a>
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<a href="https://retrohifi.pl/en/tag/vintage-audio-en/" class="tag-cloud-link tag-link-434 tag-link-position-17" style="font-size: 22pt;" aria-label="vintage audio (4 items)">vintage audio</a>
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		<title>The Sansui Story: Legendary Vintage Audio Equipment</title>
		<link>https://retrohifi.pl/en/historia-sansui/</link>
					<comments>https://retrohifi.pl/en/historia-sansui/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Tue, 21 Jan 2025 10:49:50 +0000</pubDate>
				<category><![CDATA[Audio Vintage]]></category>
		<guid isPermaLink="false">https://retrohifi.pl/historia-sansui/</guid>

					<description><![CDATA[<p>The History of Sansui – a Legend of Vintage Audio Equipment The Beginnings of Sansui – Japanese Precision and Innovation Sansui Electric Co., Ltd. was founded in 1947 in Tokyo by Kosaku Kikuchi. Initially specializing in the production of audio transformers, it quickly began to develop its technologies in the field of high-quality Hi-Fi equipment. [&#8230;]</p>
<p>Artykuł <a href="https://retrohifi.pl/en/historia-sansui/">The Sansui Story: Legendary Vintage Audio Equipment</a> pochodzi z serwisu <a href="https://retrohifi.pl/en/">RetroHiFi - Vintage Audio, Serwis Amplitunerów</a>.</p>
]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph"><strong>The History of Sansui – a Legend of Vintage Audio Equipment</strong></p>

<h3 class="wp-block-heading" id="h-poczatki-sansui-japonska-precyzja-i-innowacja">The Beginnings of Sansui – Japanese Precision and Innovation</h3>

<p class="wp-block-paragraph">Sansui Electric Co., Ltd. was founded in 1947 in Tokyo by Kosaku Kikuchi. Initially specializing in the production of audio transformers, it quickly began to develop its technologies in the field of high-quality Hi-Fi equipment. Thanks to its precision workmanship and passion for sound, Sansui has gained a reputation as a premium brand among audiophiles around the world.</p>

<h3 class="wp-block-heading" id="h-zlota-era-sansui-lata-70-i-80">The Golden Era of Sansui – the 1970s and 80.</h3>

<p class="wp-block-paragraph">The company&#8217;s greatest boom came in the 1970s. and 80s, when Sansui became one of the leading manufacturers of amplifiers, tuners and AV receivers. Models such as the <strong>Sansui AU-717</strong>, <strong>Sansui G-9000</strong> or <strong>Sansui 9090DB</strong> are today considered icons of vintage equipment. These products stood out not only for their excellent sound quality, but also for their solid workmanship and elegant design.</p>

<h3 class="wp-block-heading" id="h-sansui-a-wzmacniacze-lampowe-i-tranzystorowe">Sansui and tube and transistor amplifiers</h3>

<p class="wp-block-paragraph">At the beginning of its activity the company focused on tube amplifiers, but in the 1960s began producing transistor amplifiers, which gained enormous popularity. The legendary<strong> AU-X</strong> series was a breakthrough in Class A amplifier design, offering unparalleled sound quality and durability.</p>

<h3 class="wp-block-heading" id="h-upadek-i-koniec-produkcji-sprzetu-hi-fi">The Fall and End of Hi-Fi Equipment Production</h3>

<p class="wp-block-paragraph">In the 90&#8217;s Sansui began to lose its market position due to increasing competition and changes in consumer preferences. The company gradually moved production to China, and the quality of the equipment began to decline. Eventually, in the 2000s, Sansui withdrew from the production of Hi-Fi equipment, focusing on consumer electronics and licensing of its brand.</p>

<h3 class="wp-block-heading" id="h-dlaczego-sprzet-sansui-vintage-jest-tak-ceniony">Why is Sansui vintage gear so prized?</h3>

<p class="wp-block-paragraph">Today Sansui devices from the 70s. and 80. are sought after by collectors and vintage equipment enthusiasts. Their exceptional sound quality, durability and classic design make some models command high prices on the secondary market. If you are looking for a vintage amplifier with a warm, analog sound, Sansui is a brand worth trusting.</p>

<h3 class="wp-block-heading" id="h-gdzie-kupic-sprzet-sansui-vintage">Where to buy Sansui vintage gear?</h3>

<p class="wp-block-paragraph">To find original Sansui equipment in good condition, it is worth checking online auctions, audiophile forums and specialist Hi-Fi stores. Before purchasing, it is worth paying attention to the technical condition of the device and the possible need for renovation.</p>

<h3 class="wp-block-heading" id="h-podsumowanie">Summary</h3>

<p class="wp-block-paragraph">Sansui is a legend in the world of Hi-Fi whose legacy continues to this day. Even though the company no longer produces audio equipment, its iconic amplifiers and receivers are still highly regarded by vintage audio enthusiasts. If you are looking for equipment that combines Japanese precision and unique sound, Sansui is a brand worth having in your collection.</p>

<p class="wp-block-paragraph">We encourage you to visit the website: <a href="https://auralhifi.com/pages/sansui" target="_blank" rel="noreferrer noopener">https://auralhifi.com/pages/sansui</a></p>
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<a href="https://retrohifi.pl/en/tag/stereo/" class="tag-cloud-link tag-link-173 tag-link-position-15" style="font-size: 14.3pt;" aria-label="stereo (2 items)">stereo</a>
<a href="https://retrohifi.pl/en/tag/sx950-en/" class="tag-cloud-link tag-link-433 tag-link-position-16" style="font-size: 8pt;" aria-label="sx950 (1 item)">sx950</a>
<a href="https://retrohifi.pl/en/tag/vintage-audio-en/" class="tag-cloud-link tag-link-434 tag-link-position-17" style="font-size: 22pt;" aria-label="vintage audio (4 items)">vintage audio</a>
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		<title>SERWIS I RENOWACJA AMPLITUNERA VINTAGE PIONEER SX 950 &#8211; HIGH-END</title>
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		<pubDate>Fri, 29 Nov 2024 09:25:09 +0000</pubDate>
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					<description><![CDATA[<p>Wstępne oględziny amplitunera wskazały oczywiście na charakterystyczne dla tego wieku szumy lub trzaski przy przełączaniu źródeł, czy np. włączaniu pokręteł tonów niskich i wysokich. Serwis Pioneer sx-950 pozwala na usunięcie tych typowych usterek i przywrócenie pełnej sprawności urządzenia. Czas zacząć od wyczyszczenia potencjometrów i wszystkich przełączników. Usuń stary smar i naloty z utlenionej miedzi. Przede [&#8230;]</p>
<p>Artykuł <a href="https://retrohifi.pl/en/serwis-i-renowacja-amplitunera-vintage-pioneer-sx-950-high-end/">SERWIS I RENOWACJA AMPLITUNERA VINTAGE PIONEER SX 950 &#8211; HIGH-END</a> pochodzi z serwisu <a href="https://retrohifi.pl/en/">RetroHiFi - Vintage Audio, Serwis Amplitunerów</a>.</p>
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										<content:encoded><![CDATA[
<figure class="wp-block-image alignfull size-large"><img decoding="async" width="1024" height="819" src="https://retrohifi.plwp-content/uploads/2024/11/11-1024x819.jpg" alt="" class="wp-image-2355" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/11-1024x819.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/11-300x240.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/11-768x614.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/11-600x480.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/11.jpg 1113w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<p class="wp-block-paragraph">Wstępne oględziny amplitunera wskazały oczywiście na charakterystyczne dla tego wieku szumy lub trzaski przy przełączaniu źródeł, czy np. włączaniu pokręteł tonów niskich i wysokich. Serwis Pioneer sx-950 pozwala na usunięcie tych typowych usterek i przywrócenie pełnej sprawności urządzenia.</p>



<p class="wp-block-paragraph">Czas zacząć od wyczyszczenia potencjometrów i wszystkich przełączników. Usuń stary smar i naloty z utlenionej miedzi. Przede wszystkim należy pamiętać, że potencjometry po wyczyszczeniu nie powinny pracować zbyt luźno – jest to objaw braku smaru, który był i jest niezbędny do prawidłowej pracy. Wszystkie zostały wylutowane.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="600" height="800" data-id="2356" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-2.jpg" alt="" class="wp-image-2356" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-2.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-2-225x300.jpg 225w" sizes="(max-width: 600px) 100vw, 600px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2357" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-19.jpg" alt="" class="wp-image-2357" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-19.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-19-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-19-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-19-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</figure>



<p class="wp-block-paragraph">Czyszczenie wstępne w myjce ultradźwiękowej w celu rozpuszczenia starego smaru.</p>



<p class="wp-block-paragraph">Demontaż przełączników i czyszczenie styków.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="768" height="1024" data-id="2358" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-12-768x1024.jpg" alt="" class="wp-image-2358" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-12-768x1024.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-12-225x300.jpg 225w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-12-600x800.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-12.jpg 900w" sizes="(max-width: 768px) 100vw, 768px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="768" height="1024" data-id="2359" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-13-768x1024.jpg" alt="" class="wp-image-2359" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-13-768x1024.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-13-225x300.jpg 225w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-13-600x800.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-13.jpg 900w" sizes="(max-width: 768px) 100vw, 768px" /></figure>
</figure>



<p class="wp-block-paragraph">Po wyczyszczeniu potencjometrów i przełączników czas przyjrzeć się wartościom podzespołów płytki zasilającej.</p>



<p class="wp-block-paragraph"><strong>Płyta zasilacza (AWR-101)</strong></p>



<p class="wp-block-paragraph">Niektóre jednostki z tej serii (też takie spotkałem) miały na płytce zasilacza zamontowany kondensator C12: 1000uF 35v ACH-039, który oczywiście został zastąpiony przez Nichicon serii UPW 2200uf 35v (bardzo długa żywotność). Później był montowany fabrycznie. Płyta zasilacza (AWR-101) zawiera dwanaście aluminiowych kondensatorów elektrolitycznych C10 do C16, C18 do C21 i C23. Wszystkie zastąpiono niskoimpedancyjnymi kondensatorami Elna i Nichicon UPW/UPM, FG.</p>



<p class="wp-block-paragraph">C10: pojemność znamionowa-470uF, zmierzona-365uF</p>



<p class="wp-block-paragraph">C11: pojemność znamionowa-470uF, zmierzona-388uF</p>



<p class="wp-block-paragraph">C12: pojemność znamionowa &#8211; 1000uF, zmierzona &#8211; 1120uF &#8211; zmieniona na 2200uF</p>



<p class="wp-block-paragraph">C13: pojemność znamionowa-1000uF, zmierzona-1055uF</p>



<p class="wp-block-paragraph">C14: pojemność znamionowa &#8211; 47uF, zmierzona &#8211; 63uF</p>



<p class="wp-block-paragraph">C15: pojemność znamionowa-470uF, zmierzona-365uF</p>



<p class="wp-block-paragraph">C16: pojemność znamionowa &#8211; 47uF, zmierzona &#8211; 60uF</p>



<p class="wp-block-paragraph">C18: pojemność znamionowa-47uF, zmierzona-30uF</p>



<p class="wp-block-paragraph">C19: pojemność znamionowa &#8211; 47uF, zmierzona &#8211; 59uF</p>



<p class="wp-block-paragraph">C20: pojemność znamionowa &#8211; 100uF, zmierzona &#8211; 121uF</p>



<p class="wp-block-paragraph">C21: pojemność znamionowa &#8211; 47uF, zmierzona &#8211; 61uF</p>



<p class="wp-block-paragraph">C23: pojemność znamionowa &#8211; 100uF, zmierzona &#8211; 88uF</p>



<p class="wp-block-paragraph">Przed oraz po serwisie:</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="600" height="800" data-id="2360" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-72.jpg" alt="" class="wp-image-2360" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-72.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-72-225x300.jpg 225w" sizes="(max-width: 600px) 100vw, 600px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="600" height="800" data-id="2361" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-37.jpg" alt="" class="wp-image-2361" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-37.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-37-225x300.jpg 225w" sizes="(max-width: 600px) 100vw, 600px" /></figure>
</figure>



<p class="wp-block-paragraph">Wymieniono także wszystkie tranzystory na tej płycie, aby poprawić niezawodność zasilania. Powinni przejść na emeryturę po ciężkiej pracy przez ostatnie 45 lat. Poniżej znajduje się lista tranzystorów oryginalnych i zamienników, których użyłem. Na radiatorze zamontowane są cztery tranzystory Q1, Q2, Q8 i Q9. Stare podkładki termiczne zostały wymienione na nowe mikowe. Stara pasta termoprzewodząca została odświeżona nową silikonową pastą termoprzewodzącą.</p>



<p class="wp-block-paragraph">P1: NPN, 2SD313 (oryginalny), zastąpiony nowym Fairchild KSC2073TU</p>



<p class="wp-block-paragraph">Pytanie 2: PNP, 2SB507 (oryginalny), zastąpiony nowym Fairchild KSA940TU</p>



<p class="wp-block-paragraph">P3: NPN, 2SC1384 (oryginalny), zastąpiony nowym Fairchild KSC2383YTA</p>



<p class="wp-block-paragraph">P4: PNP, 2SA720 (oryginalny), zastąpiony nowym Fairchild KSA1013YBU</p>



<p class="wp-block-paragraph">P5: NPN, 2SC1384 (oryginalny), zastąpiony nowym Fairchild KSC2690AYSTU</p>



<p class="wp-block-paragraph">P6: PNP, 2SA720 (oryginalny), zastąpiony nowym Fairchild KSA1013YBU</p>



<p class="wp-block-paragraph">P7: NPN, 2SC1384 (oryginalny), zastąpiony nowym Fairchild KSC2383YTA</p>



<p class="wp-block-paragraph">P8: NPN, 2SD313 (oryginalny), zastąpiony nowym Fairchild KSC2073TU</p>



<p class="wp-block-paragraph">P9: NPN, 2SD313 (oryginalny), zastąpiony nowym Fairchild KSD526Y</p>



<p class="wp-block-paragraph">P10: NPN, 2SC869 (oryginalny), zastąpiony nowym Fairchild KSC2383YTA</p>



<p class="wp-block-paragraph">Przed oraz po:</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="600" height="800" data-id="2362" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-73.jpg" alt="" class="wp-image-2362" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-73.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-73-225x300.jpg 225w" sizes="(max-width: 600px) 100vw, 600px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="450" data-id="2363" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-141.jpg" alt="" class="wp-image-2363" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-141.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-141-300x169.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-141-768x432.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-141-600x338.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</figure>



<p class="wp-block-paragraph"><strong><u>Płyta ochronna (AWM-062-0)</u></strong></p>



<p class="wp-block-paragraph"><strong><u>Układ zabezpieczający w Pioneer SX-950 ma taką samą konstrukcję jak w Pioneer SX-1010. Są dwa kondensatory (C1, C2) i cztery aluminiowe kondensatory elektrolityczne (C3 do C6). Dwa kondensatory sprzęgające Sanyo. Wymieniłem je na kondensatory z folii poliestrowej Wima. Pozostałe aluminiowe również zastąpiono niskoimpedancyjnymi Nichiconami z serii UPW i FG.</u></strong></p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="693" height="1024" data-id="2364" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-146-693x1024.jpg" alt="" class="wp-image-2364" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-146-693x1024.jpg 693w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-146-203x300.jpg 203w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-146-768x1135.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-146-600x887.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-146.jpg 797w" sizes="(max-width: 693px) 100vw, 693px" /></figure>
</figure>



<p class="wp-block-paragraph">Wymieniłem oryginalny tranzystor 2SC1384 na nowy Fairchild KSC2690. Nowy tranzystor ma takie same piny jak oryginalny. Dodałem również do obwodu diodę bezpieczeństwa (1N4004G), aby zapobiec potencjalnemu uszkodzeniu wyjścia. Dioda bezpieczeństwa została przylutowana między pinami 9 (anoda, „+”) i 10 (katoda, „-”). Oczywiście wszystkie pozostałe tranzystory również zostały wymienione.</p>



<p class="wp-block-paragraph"><strong>Płytka wzmacniająca dźwięk (AWG-039):</strong></p>



<p class="wp-block-paragraph">Płytka wzmacniacza tonów ma dwa stałe kondensatory tantalowe (C25, C26), osiem kondensatorów elektrolitycznych (C13, C14, C15, C16, C19, C20, C23, C24) i dwa kondensatory aluminiowe (C21, C22).</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-6 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2365" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-79.jpg" alt="" class="wp-image-2365" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-79.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-79-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-79-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-79-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</figure>



<p class="wp-block-paragraph">Oryginalne kondensatory tantalowe zostały zastąpione kondensatorami poliestrowymi Wima. Wszystkie oryginalne kondensatory o niskim upływie zostały zastąpione nowymi kondensatorami o niskim upływie Nichicon. Ostatecznie dwa aluminiowe kondensatory filtrujące (C21, C22) zostały zastąpione niskoomowymi kondensatorami Nichicon FG.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-7 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2366" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-80.jpg" alt="" class="wp-image-2366" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-80.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-80-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-80-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-80-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</figure>



<p class="wp-block-paragraph">Dwa oryginalne tranzystory NPN (Q1 i Q2) to 2SC1312. Tranzystor ten z czasem staje się bardzo głośny. Wymieniłem oba oryginalne na nowy cichy Fairchild KSA1845. Trzeba zwrócić uwagę na rozmieszczenie pinów nowego tranzystora! Oryginalny tranzystor to BCE, a nowy to ECB.</p>



<p class="wp-block-paragraph">Płytka wzmacniacza płaskiego (AWG-038):</p>



<p class="wp-block-paragraph">Płaska płyta wzmacniacza ma cztery kondensatory o niskim wycieku zainstalowane w ścieżce sygnału (C1, C2, C5, C6), cztery stałe kondensatory tantalowe (C17, C18, C23, C24), dwa kondensatory o niskim wycieku (C25, C26) i trzy aluminiowe &#8211; filtrujące (C13, C14, C27).</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-8 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="600" height="800" data-id="2367" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-3.jpg" alt="" class="wp-image-2367" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-3.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-3-225x300.jpg 225w" sizes="(max-width: 600px) 100vw, 600px" /></figure>
</figure>



<p class="wp-block-paragraph">Dwa kondensatory (C1, C2) zamontowane w torze sygnału wejściowego zostały zastąpione foliowymi kondensatorami poliestrowymi WIMA. Pozostałe cztery niskoupływowe kondensatory elektryczne i cztery kondensatory tantalowe zostały zastąpione nowymi kondensatorami o niskim upływie firmy Nichicon. Pozostałe trzy aluminiowe kondensatory filtrujące (C13, C14, C27) zastąpiono niskoomowymi kondensatorami Nichicon.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-9 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2368" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-76.jpg" alt="" class="wp-image-2368" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-76.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-76-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-76-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-76-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2369" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-30.jpg" alt="" class="wp-image-2369" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-30.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-30-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-30-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-30-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</figure>



<p class="wp-block-paragraph">Dwa oryginalne tranzystory PNP (Q5 i Q6) zainstalowane na tej płycie to 2SA725. Awaria tego tranzystora zwykle skutkuje trzaskaniem/trzaskaniem. Wymieniłem oba na nowe, Fairchild KSA992. Po raz kolejny trzeba zwrócić uwagę na nowe tranzystory! Oryginalny tranzystor to BCE, a nowy to ECB.</p>



<p class="wp-block-paragraph"><strong>Płytka korekcyjna EQ (AWF-011):</strong></p>



<p class="wp-block-paragraph">Oryginalne tranzystory PNP (Q1 i Q2) zainstalowane w pierwszym stopniu to 2SA725. Awaria tego tranzystora zwykle skutkuje trzaskaniem/trzaskaniem. Wymieniłem oba na nowe &#8211; Fairchild KSA992. Ponownie musisz sprawdzić układ pinów na nowych tranzystorach. Oryginalny tranzystor to BCE, a nowy to ECB.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-10 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2370" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-87.jpg" alt="" class="wp-image-2370" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-87.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-87-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-87-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-87-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="600" height="800" data-id="2371" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-70.jpg" alt="" class="wp-image-2371" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-70.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-70-225x300.jpg 225w" sizes="(max-width: 600px) 100vw, 600px" /></figure>
</figure>



<p class="wp-block-paragraph">Dwa kondensatory sprzęgające (C1, C2) zainstalowane w ścieżce sygnału wejściowego to Sanyo. Wymieniłem je na kondensatory z folii poliestrowej WIMA, aby poprawić stosunek sygnału do szumu. Dwa niskoszczelne kondensatory (C11, C12) zostały wymienione na nowe Nichicon UPW. A pozostałe aluminiowe kondensatory elektrolityczne (C7, C8, C17, C18) wymieniono na niskoomowe kondensatory Nichicon UPW.</p>



<p class="wp-block-paragraph">C1: pojemność znamionowa &#8211; 1 uF, zmierzona &#8211; 1,5 uF</p>



<p class="wp-block-paragraph">C2: pojemność znamionowa &#8211; 1 uF, zmierzona &#8211; 1,4 uF</p>



<p class="wp-block-paragraph">C7: pojemność znamionowa-330uF, zmierzona-356uF</p>



<p class="wp-block-paragraph">C8: pojemność znamionowa-330uF, zmierzona-377uF</p>



<p class="wp-block-paragraph">C11: pojemność znamionowa &#8211; 3,3 uF, zmierzona &#8211; 4,2 uF</p>



<p class="wp-block-paragraph">C12: pojemność znamionowa &#8211; 3,3 uF, zmierzona &#8211; 4,4 uF</p>



<p class="wp-block-paragraph">C18: pojemność znamionowa-220uF, zmierzona-180uF</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-11 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="960" height="540" data-id="2372" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-145.jpg" alt="" class="wp-image-2372" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-145.jpg 960w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-145-300x169.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-145-768x432.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-145-600x338.jpg 600w" sizes="(max-width: 960px) 100vw, 960px" /></figure>
</figure>



<p class="wp-block-paragraph"><strong><u>Oświetlenie odbiornika:</u></strong></p>



<p class="wp-block-paragraph"><strong><u>Wszystkie oryginalne żarówki STANLEY w tej oprawie zostały zastąpione nowymi ciepłymi białymi żarówkami LED (oprawa klinowa 8V). Każda lampa jest wkładana do osobnego gniazda i jest bardzo łatwa do wymiany.</u></strong></p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-12 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2373" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-106.jpg" alt="" class="wp-image-2373" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-106.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-106-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-106-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-106-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2374" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0344-1024x683.jpg" alt="" class="wp-image-2374" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0344-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0344-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0344-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0344-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0344-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0344-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2375" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-98.jpg" alt="" class="wp-image-2375" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-98.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-98-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-98-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-98-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</figure>



<p class="wp-block-paragraph"><strong><u>Regulacja napięć DC i Bias:</u></strong></p>



<p class="wp-block-paragraph"><strong><u>Na koniec moich prac wyregulowałem napięcie DC i Bias na końcówce mocy zgodnie z instrukcją serwisową. Przed regulacją usunięto dwie zworki i podłączono rezystor 5,1 kΩ do gniazd POWER IN.</u></strong></p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-13 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="600" height="800" data-id="2376" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-88.jpg" alt="" class="wp-image-2376" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-88.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-88-225x300.jpg 225w" sizes="(max-width: 600px) 100vw, 600px" /></figure>
</figure>



<p class="wp-block-paragraph">Przesunięcie DC w lewym kanale jest mierzone między pinami 10 i 9. W prawym kanale jest mierzone między pinami 25 i 24. Przesunięcie DC powinno być ustawione jak najbliżej zera za pomocą rezystorów dostrajających VR1 i VR2.</p>



<figure class="wp-block-image size-full"><img loading="lazy" decoding="async" width="800" height="450" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-142.jpg" alt="" class="wp-image-2377" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-142.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-142-300x169.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-142-768x432.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-142-600x338.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>



<p class="wp-block-paragraph">Regulacja prądów spoczynkowych lewego kanału jest mierzona między pinami 12 (+) i 13 (-). Na prawym kanale mierzony jest między pinami 27 (+) i 28 (-). Bias powinien być ustawiony na ~20mV z rezystorami dostrajającymi VR3 i VR4, których nie trzeba było wymieniać.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-14 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="800" height="600" data-id="2378" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-92-1.jpg" alt="" class="wp-image-2378" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-92-1.jpg 800w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-92-1-300x225.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-92-1-768x576.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-92-1-600x450.jpg 600w" sizes="(max-width: 800px) 100vw, 800px" /></figure>
</figure>



<p class="wp-block-paragraph">Renowacja frontu, czyszczenie pokręteł, montaż nowej szyby frontowej oraz renowacja obudowy:</p>



<p class="wp-block-paragraph">Front odbiornika był w nienagannym stanie, ale wymagał wymiany szkła, które było okropnie porysowane. Montaż nowego szkła pokazuje bardzo staranne wykonanie sitodruku skali FM.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-15 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2381" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0325-1024x683.jpg" alt="" class="wp-image-2381" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0325-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0325-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0325-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0325-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0325-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0325-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2384" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0292-2-1024x683.jpg" alt="" class="wp-image-2384" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0292-2-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0292-2-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0292-2-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0292-2-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0292-2-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0292-2-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2383" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0293-1-1024x683.jpg" alt="" class="wp-image-2383" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0293-1-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0293-1-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0293-1-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0293-1-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0293-1-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0293-1-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>
</figure>



<p class="wp-block-paragraph">Porysowany front również przeszedł rewitalizację, dzięki czemu większość rys zniknęła.any front również przeszedł rewitalizację, dzięki czemu większość rys zniknęła.</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-16 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="521" data-id="2387" src="https://retrohifi.plwp-content/uploads/2024/11/pioneer-sx-950-1-1024x521.jpg" alt="" class="wp-image-2387" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/pioneer-sx-950-1-1024x521.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/pioneer-sx-950-1-300x153.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/pioneer-sx-950-1-768x391.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/pioneer-sx-950-1-600x305.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/pioneer-sx-950-1.jpg 1224w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="683" height="1024" data-id="2388" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0326-1-683x1024.jpg" alt="" class="wp-image-2388" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0326-1-683x1024.jpg 683w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0326-1-200x300.jpg 200w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0326-1-768x1152.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0326-1-1024x1536.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0326-1-1365x2048.jpg 1365w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0326-1-600x900.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0326-1-scaled.jpg 1707w" sizes="(max-width: 683px) 100vw, 683px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2385" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0327-1024x683.jpg" alt="" class="wp-image-2385" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0327-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0327-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0327-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0327-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0327-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0327-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>
</figure>



<p class="wp-block-paragraph">Po usunięciu rys zabrałem się za remont obudowy. Chciałem odtworzyć ten sam kolor. Okleinę zostawiłem w oryginale, bo nie miała uszkodzeń (co po tylu latach jest bardzo rzadkie!). Kolor uzyskałam po lekkim przyciemnieniu Starwaxem. Po całym dniu zastosowano wosk polerski włoskiego producenta Cera Lucidante, który po wyschnięciu dogłębnie odżywia i zabezpiecza.</p>



<p class="wp-block-paragraph">Efekt pracy poniżej:</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-17 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2393" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0310-3-1024x683.jpg" alt="" class="wp-image-2393" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0310-3-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0310-3-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0310-3-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0310-3-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0310-3-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0310-3-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2394" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0306-1-1024x683.jpg" alt="" class="wp-image-2394" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0306-1-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0306-1-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0306-1-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0306-1-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0306-1-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0306-1-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2395" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0305-3-1024x683.jpg" alt="" class="wp-image-2395" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0305-3-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0305-3-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0305-3-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0305-3-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0305-3-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0305-3-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="683" data-id="2392" src="https://retrohifi.plwp-content/uploads/2024/11/MG_0311-2-1024x683.jpg" alt="" class="wp-image-2392" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/MG_0311-2-1024x683.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0311-2-300x200.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0311-2-768x512.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0311-2-1536x1024.jpg 1536w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0311-2-2048x1365.jpg 2048w, https://retrohifi.pl/wp-content/uploads/2024/11/MG_0311-2-600x400.jpg 600w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>
</figure>



<p class="wp-block-paragraph">Gotowy:</p>



<figure class="wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-18 is-layout-flex wp-block-gallery-is-layout-flex">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="819" data-id="2398" src="https://retrohifi.plwp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-137-1024x819.jpg" alt="" class="wp-image-2398" srcset="https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-137-1024x819.jpg 1024w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-137-300x240.jpg 300w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-137-768x614.jpg 768w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-137-600x480.jpg 600w, https://retrohifi.pl/wp-content/uploads/2024/11/Amplituner-Vintage-Pioneer-SX-950-137.jpg 1113w" sizes="(max-width: 1024px) 100vw, 1024px" /></figure>



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<p class="wp-block-paragraph"></p>
<p>Artykuł <a href="https://retrohifi.pl/en/serwis-i-renowacja-amplitunera-vintage-pioneer-sx-950-high-end/">SERWIS I RENOWACJA AMPLITUNERA VINTAGE PIONEER SX 950 &#8211; HIGH-END</a> pochodzi z serwisu <a href="https://retrohifi.pl/en/">RetroHiFi - Vintage Audio, Serwis Amplitunerów</a>.</p>
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		<title>Wood Cabinet Renovation and Vintage Amplifier Service</title>
		<link>https://retrohifi.pl/en/wood-cabinet-renovation-and-vintage-amplifier-service/</link>
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		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Fri, 22 Nov 2024 11:33:14 +0000</pubDate>
				<category><![CDATA[Audio Vintage]]></category>
		<category><![CDATA[housing service]]></category>
		<category><![CDATA[revitalization of the housing]]></category>
		<category><![CDATA[service vintage]]></category>
		<category><![CDATA[vintage audio]]></category>
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					<description><![CDATA[<p>Renovating a Wooden Vintage Audio Equipment Case – A Step-by-Step Guide Vintage audio equipment is becoming increasingly popular among music and design enthusiasts. The unique sound and aesthetics of old devices are causing more and more people to decide to buy and renovate them. One of the key elements that need to be restored is [&#8230;]</p>
<p>Artykuł <a href="https://retrohifi.pl/en/wood-cabinet-renovation-and-vintage-amplifier-service/">Wood Cabinet Renovation and Vintage Amplifier Service</a> pochodzi z serwisu <a href="https://retrohifi.pl/en/">RetroHiFi - Vintage Audio, Serwis Amplitunerów</a>.</p>
]]></description>
										<content:encoded><![CDATA[
<p class="wp-block-paragraph">Renovating a Wooden Vintage Audio Equipment Case – A Step-by-Step Guide</p>

<p class="wp-block-paragraph">Vintage audio equipment is becoming increasingly popular among music and design enthusiasts. The unique sound and aesthetics of old devices are causing more and more people to decide to buy and renovate them. One of the key elements that need to be restored is the wooden casing. In this article, you will learn how to renovate the wooden casing of vintage audio equipment step by step to restore its former glory.   </p>

<h3 class="wp-block-heading" id="h-dlaczego-warto-odnawiac-drewniane-obudowy">Why is it worth renovating wooden casings?</h3>

<p class="wp-block-paragraph">Wooden casings of vintage audio equipment not only serve a protective function, but also constitute an important aesthetic element. Unfortunately, over the years, they can become damaged, such as: </p>

<ul class="wp-block-list">
<li>scratches,</li>



<li>chipped paint,</li>



<li>discoloration from sunlight,</li>



<li>mechanical damage.</li>
</ul>

<p class="wp-block-paragraph">Renovating the wooden casing allows you to preserve the original character of the equipment and increase its market value.</p>

<h3 class="wp-block-heading" id="h-narzedzia-i-materialy-potrzebne-do-renowacji">Tools and materials needed for renovation</h3>

<p class="wp-block-paragraph">Before you begin work, prepare the following tools and materials:</p>

<ul class="wp-block-list">
<li>sandpaper of different grits (e.g. 120, 240, 400),</li>



<li>orbital sander (optional),</li>



<li>old paint remover,</li>



<li>microfiber cloths,</li>



<li>wood stain,</li>



<li>protective varnish or wood oil,</li>



<li>paint brushes and rollers,</li>



<li>painter&#8217;s tape.</li>
</ul>

<h3 class="wp-block-heading" id="h-krok-1-przygotowanie-powierzchni">Step 1: Surface preparation</h3>

<p class="wp-block-paragraph">The first step in renovation is to thoroughly clean the casing. Remove dust, dirt and remnants of old paint. You can use specialist coating removers or low-grit sandpaper (e.g. 120).  </p>

<p class="wp-block-paragraph"><strong>Tip</strong>: If the case has hard-to-reach areas, use small tools such as files or small abrasive sponges.</p>

<h3 class="wp-block-heading" id="h-krok-2-szlifowanie">Step 2: Sanding</h3>

<p class="wp-block-paragraph">Sanding the wood surface removes minor scratches and prepares it for new coatings. Start with a lower grit and gradually move up to a higher grit. Be sure to sand with the grain of the wood to avoid damaging the surface.  </p>

<h3 class="wp-block-heading" id="h-krok-3-bejcowanie">Step 3: Staining</h3>

<p class="wp-block-paragraph">After sanding, clean the surface from dust with a damp cloth. Then apply a stain that will give the wood depth of color and emphasize its natural grain. Use a brush or sponge and work evenly over the entire surface. Leave to dry according to the manufacturer&#8217;s instructions.   </p>

<h3 class="wp-block-heading" id="h-krok-4-lakierowanie-lub-olejowanie">Step 4: Varnishing or oiling</h3>

<p class="wp-block-paragraph">Apply a layer of protective varnish or wood oil to the dried stain. The varnish adds shine and protects the surface from damage, while the oil highlights the natural appearance of the wood. Choose the method that best suits your equipment.  </p>

<p class="wp-block-paragraph"><strong>Tip</strong>: Apply at least two coats of varnish or oil, allowing adequate drying time between applications.</p>

<h3 class="wp-block-heading" id="h-krok-5-ostateczne-wykonczenie">Step 5: Final Finish</h3>

<p class="wp-block-paragraph">After the last coat of varnish or oil has dried, lightly sand the surface with high-grade sandpaper (e.g. 400–600) and clean any remaining dust. Polishing will ensure smoothness and a perfect appearance of the case. </p>

<h3 class="wp-block-heading" id="h-podsumowanie">Summary</h3>

<p class="wp-block-paragraph">Renovating the wooden casing of vintage audio equipment is a process that requires patience and precision, but the results are worth it. Restoring the former glory of devices not only emphasizes their aesthetic value, but also makes them a real interior decoration. Remember that carefully performed renovation allows you to enjoy the equipment for many years to come.  </p>

<p class="wp-block-paragraph">If you are looking for professional restoration services or need additional guidance, please contact us! We are experts in restoring vintage audio equipment and would be happy to help you with your project. </p>

<p class="wp-block-paragraph">Our work can be seen at this link: <em><strong><a href="https://retrohifi.pl/blog/news/serwis-i-renowacja-amplitunera-vintage-pioneer-sx-950-high-end">Pioneer SX 950 amplifier service</a></strong></em></p>

<p class="wp-block-paragraph">The quote is prepared individually, the scope of work will be provided by email. </p>

<p class="wp-block-paragraph">Once the offer is accepted, we proceed to execution within the agreed deadline. </p>

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