Chipamp based on Peter Daniels LM3875 pcb and his minimized circuit.
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".