Bogen Challenger CHB 35A vintage tube PA amp converted for guitar modified for 6L6 and 12AX7 tubes.

Here is a demo of this PA amp I've converted for guitar use. Forgive the sloppy guitar work as I keep pausing to show the different sounds the controls can give. It's a single channel circuit. The knobs from left to right are volume, hi/low boost, Master Volume, Bass and Treble. In the back is a negative feedback switch. The circuit has been heavily modified to be more like a Marshall or Fender type amp. I start out with no effects. After a couple minutes I set up a loop and play over that with just some reverb for a minute. Then I turn on the fuzzface and use that for the rest of the video. I will be putting this amp up for sale if anyone is interested. If there's interest in the conversion for those owning this amp already, let me know as I'm thinking about making a tutorial video where I show you how to convert this amp to use 6L6 tubes. It's a good change as the 7868 tubes are expensive and options are limited.