Thanks for the kind words Paul, I see it this way: it gives me the heart and will to look for another gems in the future when this phase is long gone! The PMA-850 is a really good amp and damn heavy too, basically the same weight as my AU-11000.
I'm keeping some other units so not all is lost I'll keep some smallish and a few bigger units to keep rotating and having my mind distracted, for instance I got a mint Nikko NR-1015 this week that is easing the pain of parting with others
edit: I forgot to addd, this specific 330A unit I have is a MONSTER of a vintage receiver!! It trumps so many other receivers, independently of the price, that I can't even really care to count... not sure why, but it originally came with the 330C transformer which I find a bit odd and the PCB's are different than the usual (white strips), but the sound is delicious with monster bass!