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smps

  1. E

    Technics SL-1500c won’t turn on

    Hello group, I have a SL1500c that is not turning on. When I connect the power cable and press the On button, the 33 rpm blinks and fades off. Looking at the service manual I should have 25vdc between pin 3 and 5 of the SMPS pcb. When I connect it to the power outlet it show some voltage close...
  2. linuxslate

    Stopped Building a Tube Amp to... Build a Tube Amp

    Also known as the "Compromising My Principles build." Yes, I'm at it again. Building basic Tube Amps around Switch Mode Power Supplies. The whole purpose of this build is to test the pictured SMPS. It's a basic P-P stereo power amp based on surplus 6п14п tubes. It is a very low budget...
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