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scott a436

  1. P

    Scott A436 transistor replacement

    Hello, I've been putting my hands inside a Scott A-436 lately. After replacing all capacitors, I checked for bias according to the service manual instructions. (https://retronik.silicium.org/DOCUMENTS/Audiovideo/Scott/Scott-A-416-A-426-A-436-Service-Manual.pdf). When I checked for the 0.2 mA DC...
  2. K

    Scott 436 Main Amp: Sharp spikes on both channels during bass transients (already recapped)

    I’m working on an H.H. Scott 436 integrated amplifier and I’m facing a persistent issue that I can’t seem to solve. The Problem: When playing music at medium-to-high volume, I see sharp "spikes" or parasitic oscillations on the oscilloscope. This happens on both channels and only during heavy...
  3. MorrisonAgen

    2N4915 -> 2SC1402?

    Hey all, I found a couple bad output transistors in a Scott A436. The original transistors are 2N4915. I have a clutch of 2sc1402 transistors that I pulled out of a different unit. It SEEMS like those would be an acceptable replacement… is there any reason why they wouldn’t work? Thanks!
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