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aa764

  1. Linkjr
    Thread

    AA764 Tremolo Depth

    Hi Guys, I want to get some more tremolo depth out of my vibro champ, it's using 275v secondaries on the PT I have tried increasing the bias...
    Thread by: Linkjr, Sep 14, 2020, 85 replies, in forum: Shock Brother's DIY Amps
  2. zoran
    Thread

    NFB resistor question, AA764 Vibro Champ

    curious about that 47 ohm resistor on the AA764 circuit.. the one on the bias resistor / cap and NFB loop resistor that goes to ground. what does...
    Thread by: zoran, Feb 25, 2020, 6 replies, in forum: Shock Brother's DIY Amps
  3. zoran
    Thread

    AA764 issue with trem intensity knob

    hey gang i got a AA764 build i just completed, and the trem intensity knob seems to work like a second volume in reverse. with the knob rolled...
    Thread by: zoran, Jul 7, 2019, 18 replies, in forum: Shock Brother's DIY Amps
  4. zoran
    Thread

    Vibro Champ build doesn't Vibro. Or have any sound at all actually.

    hey all! I'm building a AA764 Vibro Champ circuit, and have come to a head scratcher of a moment. I start up the amp, and there's no sound. No...
    Thread by: zoran, Feb 3, 2019, 7 replies, in forum: Shock Brother's DIY Amps
  5. stinga11
    Thread

    Blackface Champ AA764 with a couple modifications

    Well I finished my project. A Champ black face AA764. I modified the original schematic with some improvements. I added a middle pot and bright...
    Thread by: stinga11, May 29, 2018, 27 replies, in forum: Shock Brother's DIY Amps
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