I'm gathering parts for my GSG project. It all started when I found I had 3 good US 6B4Gs and wondered what I could do with them. I am no newbie when it comes to building amplifiers, but this is my first SET build and I will be working with Hi-efficiency speakers as well, also a new area for me.
Question: I have good, powerful older pwr transformer with 4+ Amp 6.3VAC filament supply. Can I supply both sides of the PCB filament supply with this? Just run wires to both sides, L A/B and R A/B?
Can a 900ohm 5W R be used instead of 3x 2.7K ohm resistors?
It appears the board is grounded to chassis in one place only, at transformer center tap? And just to be clear, input jack grounds are only connected to board?
Thanks for advice.
Peter