Fender Dumble Bassman mod 1971 Silverface

This is my take on a "Dumble" mod on a '71 Fender Bassman. It can run 240V or 120V power. Uses a Mercury Magnetics power transformer and an Original Fender Schumacher Output transformer. One channel is Clean and the other is Overdrive - both foot switchable. Please check out the video clips for a sampling of how it sounds. There's individual trim pots internally to adjust the Mids for both channels. There's also the trim pot for the amount of overdrive content.

BTW, I can put in your choice of power and preamp tubes. 

Video clip is from my own Youtube channel where you can find videos of other stuff including Dumble clones, outboard equipment, audiophile Hifi, etc ...