It's Sansui integrated amp time around here.
Earlier in the month I restored and upgraded a sweet AU-999 - all the great mods from the AK Sansui Gurus.
http://audiokarma.org/forums/index.php?threads/knock-knock-its-my-ntm-au-999.701143/
Then, at our New England get-together this past weekend there was a pretty AU-9500 that was calling out to me - another beauty for the stable.
I also picked up a nice TU-517 tuner that I recapped and will tie into what ever system I end up with here.
All the parts are in - here's my game plan for the AU-9500:
Complete recap - including doubling the size of the main power supply caps.
Rebuild the phono preamp board with 1% metal film caps. Replacing the carbon 10% resistors should make for a quieter and more accurate phono stage.
Refresh the thermal grease on the output transistors.
Here's a common problem - the lens (or jewel) at the power indicator light is gone.
I was thinking of enlarging the hole and mounting an appropriate LED - but once you drill the faceplate, no matter how nice it looks it's been butchered.
Solution is a 1/8" light pipe lens from Mouser.
http://www.mouser.com/ProductDetail/Bivar/PLP1-625/?qs=sGAEpiMZZMuu2qEGwSNRoI7NaoVtmgDBGQrRHsadHNQ=
When I removed the faceplate I found the back part of the original lens with the mounting clip - which I'll use with a dab of silicon RTV to secure it.
More pictures to follow.
Earlier in the month I restored and upgraded a sweet AU-999 - all the great mods from the AK Sansui Gurus.
http://audiokarma.org/forums/index.php?threads/knock-knock-its-my-ntm-au-999.701143/
Then, at our New England get-together this past weekend there was a pretty AU-9500 that was calling out to me - another beauty for the stable.
I also picked up a nice TU-517 tuner that I recapped and will tie into what ever system I end up with here.
All the parts are in - here's my game plan for the AU-9500:
Complete recap - including doubling the size of the main power supply caps.
Rebuild the phono preamp board with 1% metal film caps. Replacing the carbon 10% resistors should make for a quieter and more accurate phono stage.
Refresh the thermal grease on the output transistors.
Here's a common problem - the lens (or jewel) at the power indicator light is gone.
I was thinking of enlarging the hole and mounting an appropriate LED - but once you drill the faceplate, no matter how nice it looks it's been butchered.
Solution is a 1/8" light pipe lens from Mouser.
http://www.mouser.com/ProductDetail/Bivar/PLP1-625/?qs=sGAEpiMZZMuu2qEGwSNRoI7NaoVtmgDBGQrRHsadHNQ=
When I removed the faceplate I found the back part of the original lens with the mounting clip - which I'll use with a dab of silicon RTV to secure it.
More pictures to follow.