In Reply to: Gordon Rankin had one in his Wavelength Audio... posted by RC Daniel on February 16, 2012 at 00:40:26:
Gang,
Yea I used the B, the A has too much Rp (Plate Impedance) and requires a higher load and output power would be nothing.
RCA input went into a 1:4 step up and then directly to the Grid, we used custom MagneQuest output transformers in parallel feed and it got about 3W's output power, but really required a well oiled preamplifier.
These sold big when the Horn era hit the US and all those huge amps had tons of hum.
Thanks
Gordon
J. Gordon Rankin
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- Mercury amps - Gordon Rankin 05:19:48 02/16/12 (0)