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Ah, but the 5691 is rated at 100V heater to cathode...

both ways, plus or minus.

Run those for a while until I can figure out a way to drop the B++ going to the top of the 6Sl7 a 10-20V and be within range.




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  • Ah, but the 5691 is rated at 100V heater to cathode... - Ivan303 06/14/2109:54:36 06/14/21 (0)
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