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Hoffman Amps Forum image Author Topic: should i choke it or just resist!  (Read 1962 times)

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Offline shooter

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should i choke it or just resist!
« on: January 02, 2013, 04:01:49 pm »
Hey, my 1st build was a 5e1, the next a parralel 6L6 psuedo GA-8.  after both were up n i was looking over options for #3 I came up with 2 questions.  in the real world is there much differance in filtering between r/c n L/c on the power rail?   on the 5e build there is only 1 wire from the pwr rail connecting to the screen-OT-plate, where the ga8 build the OT-plate gets the 1st rail tap, R, then the 2nd tap thru a 1k to screen.  Does that make the 5e1 triode configured?

thanks

dave
Went Class C for efficiency

Offline sluckey

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Re: should i choke it or just resist!
« Reply #1 on: January 02, 2013, 04:45:04 pm »
Quote
is there much differance in filtering between r/c n L/c on the power rail?
LC produces a smoother dc than RC.

Quote
Does that make the 5e1 triode configured?
No.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Fresh_Start

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Re: should i choke it or just resist!
« Reply #2 on: January 02, 2013, 10:34:51 pm »
FWIW my experiments with a 5F2A circuit definitely benefitted from a choke between the rectifier and the plate node.  IOW a c-l-c filter first in the power rail.  Duncan's PSU may be helpful if you like virtual experiments.

Cheers,

Chip
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