February 23, 2018

LM3875 chipamp with X-10D tube buffer

Just finished this little amplifier.
Chipamp based on Peter Daniels LM3875 pcb and his minimized circuit. 

300VA transformer.
Speaker dc protection circuit, including 10 sec. delay and mute function.
Input selector > X-10D tube buffer > 25K potentiometer > LM3875 amplifier.

The two triodes in the X-10D clone are 6922.
Leather front. The little sticker says "FRIKLANG", which could be translated to "unlimited sound".