RE: [TCML] Analysis of VTTC circuit

["Lau, Gary" <Gary.Lau@xxxxxx>]

A simple cap across the filament would be effective if the RF en route to the transformer were differential, but I would think that it is more likely common-mode, and would require a more complex L-C filter to keep it out.  Could be there just because it seemed like a good idea?

Regards, Gary Lau
(Who knows NOTHING about tube circuits)
MA, USA



> >C5 - not really sure, some kind of protection for the tube?
>
> C5 Keeps the radio frequency energy out of the filament transformer and the
> mains.

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