Krankenstein was a modded Revolution Series One, Rev1 was based on
a Sovtek Mig 100. The first couple of runs of the Revolution were in fact Sovtek chassis and transformers, with the boards being Tony Dow's own, if semi-pirated, design.
The Revolution Series One and original Krankenstein have not been made for years.
They were replaced by the Plus models which have many changes to the design and use four 6550 power tubes.
The Chadwick series were much more Marshall-y in design.
Alan Chadwick left Krank and the Chadwick amps, single channel and switcher, are no longer in production.
The Chadwick Series was replaced by the Nineteen80....
The Nineteen80 is a Marshall on steroids. Two 6550's for 80 watts. Tube powered loop with Send and Return level control.
If you're still judging Krank by the original Rev and 'stein design, you're really missing a lot.