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  1. M

    tube amp trouble

    I have an old tube amp that I've been working on. It's a SOS Electronics Cadet 150B. I had added a fan to try to keep the tubes cool, and when I fired it up, I have no output. The tubes are glowing, and are getting pretty orange and hot. When I turn the tune and load knobs, nothing is happening...
  2. M

    amp problems

    Hi, guys, I've been working on an old Cadet 150B amp, and tried firing it up today. I get nothing out of it. I put a 4" fan in it to try to keep the tubes cool. I plugged it in, and nothing. The relay is clicking, and the tubes are glowing orange, but this is my first tube amp that I have...
  3. M

    Mada 150B amp

    Hi, guys, Does anyone out there have any info on a Mada 150B amp? I'm looking for a schematic. Thanks, Lew
  4. M

    Home made amp trouble

    Hi, guys, I picked up a homebrewed amp at the flea market last weekend. It's a 2 tube sweep tube amp with 6JS6C tubes in it. It uses a 6BQ5 tube as the keying circuit. It has the regular 110V power cord on it, but also has another cord coming out the back. That cord had about...