Re: 807 (maybe) amplifier build. Now EL34
Thinking about this again, if you look at the schematic, with no 12BH7 present but the wiring and component's there, there is a path to ground via the 1k R, through diode, though the 12k R for DC of the ECC82 PS anodes.
With the 12BH7 in the socket warmed up and drawing current, the diodes turn off cutting the path to ground.
Panic over.
Andy.
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