Hi Todd,
I have a russian made socket for the GU74B/4CX800 tube, it is a different type,
not the SK1A used by Svetlana. This socket have not the internal screen
capacitor,
but eight (big) chip capacitors (5100p each) connected between the screen
connection ring and earth.
So, it works!
73, Traian
ToddRoberts2001@aol.com wrote:
> Has anyone used the newer ceramic chip capacitors for bypass applications in
> a Homebrew HFamplifier? I thought about using some in a G-G GS35b HF
> amplifier project for RF bypassing the cathode-filament circuit. I have seen
> .1 MFD ceramic chip capacitors with a 500 volt rating. These have a
> self-resonant frequency rating well into the GHz range. They should be
> excellent for RF coupling into the cathode circuit also. I think high-voltage
> RF Chip capacitors are being made nowadays. These should be much better than
> using the old mica blocks or ceramic discs for bypassing and coupling to the
> cathode circuit. 73 Todd WD4NGG .
>
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