Hello, I have the power and output transformers from an old organ that used 4 EL84s in the power section, along with numerous 12AX7s. I was wondering if it would be possible to make a clone of a Marshall 18W with these transformers, except with 4 EL84s instead of 2 in order to compensate for the impedance mismatch (and to bump up the output power). The voltages from the power transformer are roughly what you'd get from a Marshalll power transformer, but would the existing preamp circuitry and phase inverter be able to drive the additional EL84 per side?
Thanks! I'll look into it, and I'll probably try both, but for the sake of the original question, could you drive 4 EL84s with the preamp of a Marshall 18W?
The circuit I linked is essentially the 18W circuit with 4 EL84's:
https://taweber.powweb.com/store/kits_60b.htm#6M36
https://taweber.powweb.com/store/kits_60b.htm#6M36
18watt.com has an entire section on 36watters. Very helpful guys there that were in invaluable in helping me build an 18watt variation for my grandson.
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