It's been a while since I lurked around this forum but have decided to finally get my old TA-F5650 sorted out. It works and sounds pretty good but there's been a suspicion that it isn't performing to the level it is capable of. I've checked out various sites and there are a few mods recommended, including changing diodes and caps that I'd like to try, but don't feel confident about the work on my own. I know the VFETs are pretty much impossible to get hold of now so anything that helps prolong their life would be great. Also most reports of the amp states it runs pretty hot whereas mine runs cool which makes me think something (the quiescent current maybe?) hasn't been adjusted correctly.
I'm Nottingham based so if anyone with better electronics skills than mine and reasonably local fancied helping me with some alterations I'd pay for their time.