>
>I just want to ask this question while everyone seems to be following this
>thread on filaments. I have an amp with 2 3-500Z's. Filament voltage
>measured, not keyed, at the socket pins is 5.82 volts. I did drop it to
>5.00 volts with resistors in the secondary of the filament transformer. I
>cannot measure the voltage when the amp is keyed due to RF getting into my
>Voltmeter. My question: is the voltage on the filament almost the same
>keyed and unkeyed? I am sure with the increase in current during the keyed
>cycle the voltage will drop, , but I have no idea how much. Any replies
>would be appreciated.
>
Mine drops approx 3%.
cheers, Monty
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