Super high B+ issue, tube amp

[Guitarist]

Getting some HIGH voltage, like 700V with this Bogen and have had to series-up pairs of filter caps to accommodate.
If I can add a dropping resistor after the screens, R75, for the PI what would be a good value and Wattage? Preferred. It has six current-drawing preamp tubes. a few ala 12dw7, the Mullard 7247. Now, at the PI I have a 500V JJ filter cap that getting stressed and warm.
Or how would I remove the voltage doubler? Or which circuit would I emulate as of the three secondaries, only the B+ hasn't a center tap?

Aside from this, what cool things can I do with those Remote strips? I fell that this could be a helpful multi-tube mic preamp for recording in my small studio! It is almost restored...

[SoulFetish]

What are you getting for AC heater voltages on V7 and V8?

[Leo_Gnardo]

Getting some HIGH voltage, like 700V with this Bogen and have had to series-up pairs of filter caps to accommodate.
If I can add a dropping resistor after the screens, R75, for the PI what would be a good value and Wattage? Preferred. It has six current-drawing preamp tubes. a few ala 12dw7, the Mullard 7247. Now, at the PI I have a 500V JJ filter cap that getting stressed and warm.
Or how would I remove the voltage doubler? Or which circuit would I emulate as of the three secondaries, only the B+ hasn't a center tap?

I have to wonder, is that schematic really the correct one for your amp? OR did some bright spark swap in a different power transformer? One that's obviously not the right one for your amp.

Once you do get it running, yes it could be a terrific recording amp. Just worked on a Challenger 18, a real old "toaster" lookin' PA amp. Tone choices all over the place, all of them terrific. Hope yours does equally well once it's fixed right.

[g1]

What are you getting for AC heater voltages on V7 and V8?

This^^^^. And is it blowing up the 100V bias filter cap?