Very nice! I tinkered with a few of these myself over the years, installed Don's relay board, etc. I had good input boards and they took the cap. changes, etc without issue - lucky me as I don't recall the White oak boards as being available back then.. IIRC there were several stock board variations, and mine were in the last series for both the 700B's I had. OH, btw, I have several sets of the original stock handles for 700B's. If someone needs a set, let me know.
When all the work is completed, bias dialed in, offsets down to near 0, etc., these are a very good sounding amplifier. Back when these were being built of course, most audio "guru's" would say they were poor sounding, prone to blowing up and taking your speakers, perhaps your home with them(well... ok, a SLIGHT possibility of burning your house down, but we audiophiles thrive on danger,eh?). Bob constantly fought an uphill battle getting his stuff accepted in the MORE PROFIT for all, environment of the time. His stuff just didn't cost enough!
With the updates, and protections you've incorporated, I'm jealous! You now have a terrific sounding and thoroughly updated piece of real audio gear.
