Quote:
Originally Posted by dieseljeep
Boost the line voltage another 10 volts or so. See what the focus and brightness looks like then. You installed E'caps, that were rated for higher B+ so no worry.
I just looked at an old Sylvania tube manual for the specs on the 21FP4 and it shows the focus voltage, rated between -200 to 1KV on pin 6. I don't remember seeing, that kind of voltage used for E'stat focusing. It was always between ground and boost.  |
I could boost the line voltage by 10 volts. Would that hurt the filament string?
12-25-2016, 08:50 PM
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