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Hoffman Amps Forum image Author Topic: G3 to ground  (Read 1767 times)

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Offline knebiter

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G3 to ground
« on: September 28, 2022, 12:00:02 pm »
Merlin sez "connecting the suppressor to ground will dramatically increase the harmonic distortion" on a pentode.
Ref. https://www.pearl-hifi.com/06_Lit_Archive/02_PEARL_Arch/Vol_16/Sec_53/Electronics/Electronics_1953/Electronics_10_Oct_1953.pdf Pg.200.
I was thinking of building a TOD and trying to incorporate or test this out in the preamp section. Perhaps via momentary footswitch and relay to grab some Zack Wylde type screechers?
Has anyone here ever experimented with it? It would be nice to have some idea before punching holes in a chassis.
« Last Edit: September 28, 2022, 12:39:16 pm by knebiter »
Of everything I've ever lost, I miss my mind the most.

Offline PRR

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Re: G3 to ground
« Reply #1 on: September 28, 2022, 01:04:38 pm »
6AS6 is an unusual "pentode".

Where does Merlin discuss this?

Offline knebiter

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Re: G3 to ground
« Reply #2 on: September 28, 2022, 01:23:18 pm »
"Designing Tube Preamps..." 2nd Ed. pg. 42
6AS6 is pretty cheap...
« Last Edit: September 28, 2022, 01:58:36 pm by knebiter »
Of everything I've ever lost, I miss my mind the most.

Offline PRR

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Re: G3 to ground
« Reply #3 on: September 28, 2022, 11:52:45 pm »
> 6AS6 is pretty cheap...

Too cheap not to try. (But what values??)

 


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