The Super Berkeley III has a 20w SS power section.
I'd like to see even Jimmy gig with that...
Although, i bet you could with a PA... but unless you collect VOX amps or something, i'd pass.
But, it probably needs a cap job. As far as i know, the Thomas Organ Co. was never good about using good caps... or most of its parts, for that matter. Not to mention, Transistors were still half a decade young or so during this time, and still hadn't really been perfected. These tranny VOX's ultimately helped to spell the end of the company... along with the management.