Why make rocket science out of this?
*You MUST use a true RMS reading meter, or don't bother to measure it.
.2 or .3 volts is a big deal which the non RMS meter will at least will
be off by.*
73, Jim W7RY
On 6/5/2022 10:41 AM, Steve wrote:
Tack a 10k resistor to each filament pin, 10nF decoupling between the
loose ends then twisted pair out to your DVM. Should filter out the rf
and you don't have to worry about shorting the wires together.
Steve G8GSQ
I did measure the voltage at the tube pins. I haven't measured it
while transmitting, because the RF drives my meter crazy. I assume
the voltage drops a bit. Unfortunately I no longer have my trusty
analog voltmeter. I wish I did.
I'll measure the line voltage. But the only thing I can think of that
would cause that to increase after long transmissions would be if the
breaker on the line heated up and lost resistance. I have never heard
of that!
73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/
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