It's been about 5 years since I put together an audio amplifier. This one needed to be built into a salvaged case - also used the original heatsinks plus power switch, etc.
- 200W mono LM3886 BTL amplifier boards x 2
- 40,000µF capacitance, 35A rectifier power supply module x 2
- 300VA, 25-0-25V toroidal transformer x 2
Original salvaged amp (kept blowing internal fuses):
New amp:
Heatsinking of rectifier and outputs:
Working hard:
Happy with it - plenty of power, low noise, low distortion.