Ceriatone OTS hand wired Dumble ODS clone with footswitch.  100W with a “half power” triode switch.  USA made Mercury Magnetics transformers, which are very expensive and the Cadillac of amp transformers.  The transformers alone cost $750!  Excellent working condition, just gone over (I’m a professional guitar/amp tech).  A few small cosmetic dings on the tolex. 

Dumble accurate 6PS orange drop caps, Dale metal film resistors.

This is the classic high plate Dumble ODS circuit.  If you’re looking at this, you know the sounds.  Fat midrange OD, Fender like cleans.  Ceriatone moves the first gain channel gain pot from the inside of the amp where Dumble had it to the outside so you can fine tune your gain with the front and back gain knobs (back controls the gain from clean to 1^st gain channel stage, front controls the gain from 1^st to second gain channel stage).  Wide range of gain available from edge of breakup to high gain.

I did a mod which tightens up the OD; i.e. you can turn up your bass on the clean channel without making the OD channel a mud fest.  Anyone who has played a Dumble circuit or a Mesa Mark series circuit knows the issue:  Since the clean channel feeds the gain channel, if you turn up the bass for a nice full clean sound, your gain channel low end turns to mud below a G on the D string, and the OD sounds “grainy”.  If you turn the bass down on the clean channel so that your OD channel is tight, your clean channel sounds thin.  This was a simple problem to cure, and the components are the Dumble accurate 6PS orange drops.  This not only tightens up the gain channel so that even with the bass up on the clean channel, power chords sound nice instead of like a wet bodily function, but also lets the higher notes sing more and endless sustain feedback is easier to achieve.