72.196.118.158
Finished a FP III and 75% complete with a pair of Paramount 300b's. I purchased three Sophia Power Supply Delay Action boards to protect the tubes but I am a complete novice and I have no idea where to fit them in. There is a spot on the board that needs 6.3v AC ( it says from the tube filament supply ) and two twisted pairs to switch up to two power supplies. Any help will be greatly appreciated.
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