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Old 08-29-2020, 05:41 AM   #1 (permalink)
JulianEdgar
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Join Date: Nov 2017
Location: Australia
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My new home office audio amplifier

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.

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