Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: RadioComm on October 02, 2021, 11:38:48 am

Title: My Champ Reverb Build
Post by: RadioComm on October 02, 2021, 11:38:48 am
Hello Everyone,

Hope this is the right board.

Wanted to share a Champ Reverb build I did more than 12 years ago. Took advantage that I have it on the bench for a loose joint around the input jack to take and share some pictures.

The finished result sounds outstanding. Very much a rock amplifier, from low/mild to high distortion. Not for clean jazz.

The starting point was an SS bass amp that I bought at a thrift store for $5.00 USD, and the following layout:
https://el34world.com/charts/Schematics/files/fender/Fender_Champ_AA764_layout.pdf

I took a Champ AA764 layout/schematic, and added the following:
    * A treble boost
    * A mid adjustment in the tone stack
    * Inserted a Deluxe Reverb's reverb into the circuit.
      Can't remember but believe it was a AB763.

Attached are some pics and the only notes that I found which includes my board layout, aa764 note, reverb notes, and some additional pics.

Hope everyone has a great weekend!

ttfn