For sale is a two channel β22 and σ22. I completely assembled it without casework, but never got it working. All LEDs light up and σ22 displays proper output power. No LED on the σ22 because it would have been mounted on the chassis. I have replaced all JFETs on the β22 boards, but it still isn't working. I'm thinking some of the MOSFETs might have burned out? I'm not sure and currently don't have any more time or money to put into it. High-quality components were used on all boards. I am an experienced builder having successfully completed a four channel balanced β22, two Buffallo DACs, and a β24 power amplifier.
Included is:
2 β22 boards
1 σ22 board
80VA torroid transformer
2 RCA input jacks
IEC Inlet
lots of various wiring used for testing
mounted neatly on a piece of plywood
I have ~$350 and lots of time invested. Make me an offer. PM if you have any questions.
