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pm860

  1. Racingh11

    Soundcraftsmen MTX S800 battery charger

    I needed a battery charger for a 144V hybrid tractor project I'm working on. I also have a MTX Soundcraftsmen S800 amp for parts. It is the same style as the old Soundcraftsmen PCR800, PM840/860 with regulated power supply. I needed the amp section to repair an S860, so I had everything else...
  2. Racingh11

    Soundcraftsmen PM860 / PCR800 power-amp restoration

    I bought this amp in rough shape as a project to match my other PM860 beater amp. I should have taken before pictures. The inside was coated in heavy dust that was also oily. And all of the black sheet metal parts had the paint pealing off. I opted to fully disassemble the amp. Ultrasonic...
  3. Racingh11

    Soundcraftsmen input board

    I designed an input board for the Soundcraftsmen PCR800, PM840/860, and similar amps. It will also work on the A5002 or most amps in general with the correct power source. It uses the built in +/- 15V supply in the PCR style amps. It provides a buffer for the input to the amp and will accept...
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