Does anyone know what happened to SUMO Electronics?

My first encounter with James Bongiorno was a SAE amp I bought new around 1975. In 1978 or 79 (memory failing), I bought a GAS Son of Ampzilla and the sound was a revelation. It was stupid good, especially for the 500.00? that it sold for. (guessing on the price). The only reason I didn’t buy his newest amp was because I despised the looks of it and that it didn’t come in silver. I called Spread Spectrum and begged James to make me one in silver, but was told they weren’t tooled up to do it. He was truly one of the great designers and was also an accomplished Jazz or was it Classical pianist.

A few years back I had a Sumo CHARLIE tuner. Wish I would have kept it. It was a cool piece of gear.

GAS made "Charlie", the Tuner back in the 70's.  I always loved Jims humor.

Yep,  Jim Made Charlie the Tuner under Gas and Sumo Labels both.  The Sumo was a better sounding piece, the best sounding tuner that I have heard, but its reception was mediocre at best.  

Just received a response from Jason Stoddard.  He said he never heard of the Sumo Electra, and would only talk about Schiit. So with this said and Jim gone, I looked on YouTube, and there are two videos about Sumo. A Diana pre and Ten poweramp, and  a Sumo, Nine Plus amp. No help at all.
I think I found a schematic, but  am not sure if it's the correct one. The model number matches, but  It doesn't look complete.

Going to continue the hunt.

JD