Carey, if the metering circuit is in the cathode lead it can add some bias
voltage which will lower the tube gain. You might check the circuit wiring
to make sure the meter is between B- and the point that the grid meter and
cathode bias are connected.
73,
Gerald K5GW
In a message dated 10/10/2011 10:37:06 P.M. Central Daylight Time,
kc5gtt@gmail.com writes:
man these pesky shunts. ok now should a meter shunt value have any effect
on the output? i am not seeing why it should. but it is. also if i remove
the shunt the cuttoff resistor blows. i feel i have a loop of some kind. i
shoud be able to bypass the plate current meter all together and still have
output. right??
Carey
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