Mr. Yamaha
Not so much Yamaha lately...
So this Saturday I´m going to travel 1700 KM to pick-up a mint condition B-2, together with mint C-2 and mint T-2. All from first owner with manuals, so that's great. The C-2 will most likely go to someone else and I'm going to pair the B-2 with my C-4 to drive the NS-1000M's.
I'v done a lot of reading about the B-2 and there are 100's of ideas on what parts to replace to protect those VFET's before putting it into rotation. I'm going to use the B-2 daily in my main system. It will be on for at least 4 hours every day (is that even a problem?).
I don't want to do complete overhaul just yet, but I want to replace everything that is mandatory to protect those VFET's. According to the seller, the B-2 plays completely fine at this moment.
What I think I should replace / do:
I'v done a lot of reading about the B-2 and there are 100's of ideas on what parts to replace to protect those VFET's before putting it into rotation. I'm going to use the B-2 daily in my main system. It will be on for at least 4 hours every day (is that even a problem?).
I don't want to do complete overhaul just yet, but I want to replace everything that is mandatory to protect those VFET's. According to the seller, the B-2 plays completely fine at this moment.
What I think I should replace / do:
- All electrolytics on the power board
- At least 2 Zeners on the power board (why not all?)
- All 2SC458's (also meter board)
- 2 BP electrolytics on the driver boards
- All possibele VD1212's with two 1N4148's in series
- Protection relais
- Clean all switches and pots
- LED upgrade (has nothing to do with VFET protection)
- Replace the binding posts (has nothing to do with VFET protection)