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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: DB110G (Bogen) 1950s. posted by ivan_terrible on December 26, 2023 at 11:20:29:
"I won't use self bias (cathode bias) in any push-pull amplifier".
Well that was what came with the amp, and for that matter, a large proportion of the 60s amps.
They do say, beam tetrodes only sound good when they are about to melt.
I reckon that's good advice.
I have run quite a lot of the old 6L6oids ie. 807/KT8
They do give best performance/lowest distortion when the anodes are glowing red in bits, or well over 85% of max Pa at idle.
The 6V6 (7408) Westinghouse valves are clearly better.
They look almost identical to the 7591, a far higher gain more linear component than the ancient 6V6 or the miniaturised 6BW6 and their clones.
Talking of this...I bought a load of 6BW6 cheap cos nobody wants them.
In the space for ONE octal (or 7C5 Loctal) you can fit a pair of 6BW6 so as to run PPP.
Actually quite a nice idea if that floats your boat.
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Follow Ups
- RE: DB110G (Bogen) 1950s. - ivan_terrible 11:07:18 12/27/23 (2)
- RE: DB110G (Bogen) 1950s. - Triode_Kingdom 20:32:51 12/27/23 (1)
- RE: DB110G (Bogen) 1950s. - ivan_terrible 01:32:15 12/28/23 (0)
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