In Reply to: Magnequest OPT for EL84 in SE amp posted by Dmitry on May 23, 2004 at 18:50:47:
... I would think the RH described below, in ultralinear topology, would fit the requirements. EL-84 gain is quite high, so even with a 12AU7 driver there is room for a few dB of feedback, just enough to get the damping factor up to SET range. With a high-gain preamp and no feedback, it might even work without any driver.
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