I concur- I have one running 3875 VDC on the plate, and another one
with 4400 VDC- the voltage limitations are highly under-rated for actual
usable values. Re the GS-5, I looked at that one time- might as well go
with a YC-156, IMHO. That way no worry about tube supplies drying up, no
glass envelope and some certainty of quality.
N3DB Dave
> The GS-35B will run for ever at 4KV with no problems. I have built dozens
> of amps for VHF and UHF using this tube and running 4KV+ on the anode.
>
> K6KWQ Dick
>
> >GS-35B is what you want
>
> REPLY:
>
> The original post asked for a tube that will run at 3.8 kV.... the max
> spec for
> the GS-35b is 3.0 kVDC. Don't be fooled by the "instantaneous value" spec
> of
> 6.0kV. In normal operation the instantaneous anode voltage will swing
> from aprox
> zero to 2X the DC supply. If your DC supply is 3.8 kV, you will be
> exceeding the
> instantaneous rating.
>
>
> http://frank.pocnet.net/sheets/018/g/GS35B.pdf<http://frank.pocnet.net/sheets/018/g/GS35B.pdf>
>
> 73, Bill W6WRT
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