Steve, thanks for the correction. I'm in serious "learn" mode. After
reading up on voltage doublers, it seems the voltage output is pretty
sensitive to current loads. I know grid current is very low with respect to
plate current, but do you think I should be concerned that the regulated
grid voltage mod is getting it's power from the HV supply?
I found a RCA datasheet for the 8122, and it seems they recommend 20ohm
"non" inductive resistor between cathode and ground to lower 3rd order
distortion at the expense of a some output.
thanks
jim
On Wed, Jan 13, 2010 at 11:14 AM, Steve Katz <stevek@jmr.com> wrote:
> The HV power supply isn't half wave, it's a full-wave voltage doubler.
>
> 100uF caps should be fine, the originals in mine were 80uF and have
> never been replaced, still fine in 2010 (with different owner).
>
> WB2WIK/6
>
>
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