pioneer sa-900

Hello all ak'ers Im new to this site and to the wonderful world of vintage audio. Was bitten by the bug a few months back when I bought my first 1973 HK 75+ quad twin. I love everything about it and just sent it out for a full recap and service. Can't wait to see how it turns out... In the mean...

I have this Pioneer SA-900 that needed some care. I got with one channel not working, there was a shorted driver transistor, easy fix, but the problems are not finished there. It's an early model that mounts 2SD218 outputs, while the later model mounts 2SC1115. The difference between the two...

Picked up an older Pioneer AMP. It is an SA-900 with cap coupled outputs. Works but needs some love on push buttons switches (sticking) - I have them working albeit not ideal yet. The plastic housing was broke and they wouldn't latch. Working - but anyways, I just wanted to know if any of...