If my memory serves me well,,,Then with a HT voltage of only 12 it is unlikely that biasing is needed at all.
And also not much chance of blowing anything up by mismatching transformer outputs with only a 12 volts HT. [but don't do it with normal tube outputs]
Very unlikely you wil get a clean sound [but Hey,, I could be wrong ]
As these valves are no longer working in there linier region and hence all the standard values will be very different. [ heck 1 meg or 10 meg grid R suck it and see]
The transformer will never be able to saturate [if your looking for that overdriven OTr fat sound].
IMHO I think there are far better thing to do with valves.
There was a circuit by Anderton "Stack in a box" [I think] and that ran 40 volts HT with no OTr,,, again not really worth it.
The "Mesa Vtwin pedal" would give far better results than most of these things.
but yes it uses normal HT 200 VDC.
Cheers,, Phil.
And also not much chance of blowing anything up by mismatching transformer outputs with only a 12 volts HT. [but don't do it with normal tube outputs]
Very unlikely you wil get a clean sound [but Hey,, I could be wrong ]
As these valves are no longer working in there linier region and hence all the standard values will be very different. [ heck 1 meg or 10 meg grid R suck it and see]
The transformer will never be able to saturate [if your looking for that overdriven OTr fat sound].
IMHO I think there are far better thing to do with valves.
There was a circuit by Anderton "Stack in a box" [I think] and that ran 40 volts HT with no OTr,,, again not really worth it.
The "Mesa Vtwin pedal" would give far better results than most of these things.
but yes it uses normal HT 200 VDC.
Cheers,, Phil.