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  1. S

    My stupid mistake of the day... (when the fix is to just open your eyes)

    A few years back I built a DOD 280 optical compressor clone on perfboard. Love the simplicity of this circuit and it makes my bass sound so much bigger without being too intrusive. Unlike the original, it's running on a bipolar power supply with an LT1054 charge pump. I wanted more headroom so I...
  2. S

    What is the 1N4001 for on the Protoboard?

    Refer to picture. I'm assuming the dual 10k resistors are for creating the Ref voltage for bias op amps, and the caps for cleaning that. But the N4001 diode? There's already the 5817 for polarity protection, so why a second (higher V drop) diode?
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