You have to leave the plates connected, because the output capacitance
of the tubes is a significant part of the tank circuit.
The ARRL handbook talks about Q from 10 to 15. It is determined by the
l/c ratio and the plate impedance of the tube. I don't think you can
directly measure it because it is a property of the circuit when it is
operating under load (it is not the same as the Q of the individual
components).
73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/
On 14/10/2021 23:30, Joe wrote:
Ok,
Lots of reading, LOTS of help from others here. This should be the
last bit of questions I have the need of help with.
When doing the like reverse plate load simulation test. I have been
told, and have read, both things when doing the test, some have said
to lift the plate connections off the tubes. While others say that
they need to still be connected. So what way is it?
What value of "Q" should one desire to have?
And once the amp is thought of to be set up with that desired value of
"Q"
Is there a way to measure this value of "Q"?
Joe WB9SBD
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