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  1. The fuse that blows is the Primary - F1 I have...

    The fuse that blows is the Primary - F1
    I have to go out and find replacements because the fuses are the smaller metric size
    There is no apparent failure, blown component, etc.
    Since the fuse...
  2. This is the documentation I have - but the...

    This is the documentation I have - but the schematic is clearer for the "official" one.
    You'll notice that the Pro-Phaser (#3) is slightly different than the Phaser - Volume (#1)
    #1 has the volume...
  3. Morley PFV Volume Phaser circuit question

    I've just resurrected a classic Morley Phase Shifter - great optical circuit.
    While I was able to find a basically readable schematic the circuit has five trimmers in it and I can't find any...
  4. Ibanez TSA15H Blowing fuse when B+ is connected

    I have an Ibanez TSA15H coming in that apparently is blowing a fuse when the B+ is connected, even with the tubes removed.
    It may be a bit premature since I don't have the amp apart on the bench,...
  5. May have found the fault.

    I think I may have discovered the fault - bad wire/connection
    The Ground cable of the Cathode circuit (Pin #1 - R212 (actually R202 on the board) - to Chassis Ground) was literally "hanging by a...
  6. Restoring a Gibson GA-30RVT front control panel

    Has anyone restored the front panel of a Gibson amplifier?
    I have a 30RVT that seems complete but like most amps of that vintage the front panel is pitted and has some rust and discoloration....
  7. Weird issue with Egnater Rebel 20 Bias readings

    Pickup up an "As-Is" Rebel 20 (ver. 1) - No output
    Initial problem - bad main fuse (owner couldn't find the "real" fuse in the IEC socket, which led to the blown C127 (100uf/450v) 1st stage cap and...
  8. Looking for schematics for a Risson Gp-120 - 1980's SS amp

    Pick this up for basically the postage. Large amp, built like a tank

    Has a Dis-Stain (distortion/sustain) input with a Response control and a Normal input
    Besides a Bright & Middle switch, it...
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