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Audio and Video Talk
The Vintage Audio Section
SANSUI AU-777 RESTORATION
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<blockquote data-quote="charles" data-source="post: 874482" data-attributes="member: 2759"><p>When I saw the excellent restoration job that Gareth80 did on a Sansui AU-999, I decided that it is time to restore my AU 777.</p><p></p><p>The AU 777 was Sansui's first Solid State amplifier model, so from a collectors view, I had to restore it. </p><p></p><p>Mine has been in storage for a long time, so I took it out and first cleaned it. Cosmetically it is in a good condition with all its original knobs.</p><p></p><p>It did not even switch on. Not even an indication light.</p><p></p><p>a Friend friend of mine helped me to restore/repair the AU 777. After lots of intensive work during a couple of days the AU 777 works well.</p><p></p><p>This one had a lot of faults. To mention only some:</p><p></p><p>Replaced > 10 capacitors.</p><p>Replaced 2 output transistors that were leaky.</p><p>The two incandescent bulbs with holders that form part of the protection circuit were removed and replaced with some LED's- obvious</p><p>the set won''t switch on. Replaced the LED's with similar bulbs and holders as the original ones (not easy to find).</p><p>Replaced some potentiometers.</p><p></p><p>Set works fine. Output +/- 35 Watt. </p><p></p><p>There is still some minor restoration work to be done.</p><p></p><p>I will later post some pictures of the restored AU-777</p></blockquote><p></p>
[QUOTE="charles, post: 874482, member: 2759"] When I saw the excellent restoration job that Gareth80 did on a Sansui AU-999, I decided that it is time to restore my AU 777. The AU 777 was Sansui's first Solid State amplifier model, so from a collectors view, I had to restore it. Mine has been in storage for a long time, so I took it out and first cleaned it. Cosmetically it is in a good condition with all its original knobs. It did not even switch on. Not even an indication light. a Friend friend of mine helped me to restore/repair the AU 777. After lots of intensive work during a couple of days the AU 777 works well. This one had a lot of faults. To mention only some: Replaced > 10 capacitors. Replaced 2 output transistors that were leaky. The two incandescent bulbs with holders that form part of the protection circuit were removed and replaced with some LED's- obvious the set won''t switch on. Replaced the LED's with similar bulbs and holders as the original ones (not easy to find). Replaced some potentiometers. Set works fine. Output +/- 35 Watt. There is still some minor restoration work to be done. I will later post some pictures of the restored AU-777 [/QUOTE]
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Audio and Video Talk
The Vintage Audio Section
SANSUI AU-777 RESTORATION
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