[Top] [All Lists]

Re: [Amps] Why does power output increase?

Subject: Re: [Amps] Why does power output increase?
From: Jim W7RY <>
Date: Sun, 5 Jun 2022 13:05:20 -0500
List-post: <>
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!

Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO

Amps mailing list
Amps mailing list

<Prev in Thread] Current Thread [Next in Thread>