• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

2sa912

  1. grandpaslab

    Rotel RX-803 in protection after replacing Q605 & Q606

    This amp was coughing up occasional hairballs of noise/static. Noise was coming from the power amp, and this was after a full re-cap and replacement of some other questionable transistors. In an attempt to fix the noise, I replaced Q605 and Q606, which were 2SA912, with KSA1013. Now I'm stuck...
  2. maxProview

    SA-3000 phono board issues

    Hello, recently I have bought a Pioneer SA 3000, the power amp work fine, but the Phono board is out. The Phono board uses 3 pairs of transistor 2Sa978; 2SC1919 2SA912. 2SA978 seem to be ok because the voltage at the base and emitter are in the specs. All others voltage are out of spec. I...
Back
Top Bottom