I have to ask the obvious question, as I think I might have missed
something here...
Why remove the plate current meter?
If just for the extra bit of output you get, remember.
"Power is nothing without control"..
There might be a better place to wire it in, so that it won't affect the
tube bias as much as it might now. Not knowing the schematic, I can't
say for sure.
73.
Dave G0WBX.
> ------------------------------
>
> Message: 9
> Date: Tue, 11 Oct 2011 08:08:14 -0400 (EDT)
> From: TexasRF@aol.com
> Subject: Re: [Amps] meter shunt again
> To: kc5gtt@gmail.com, amps@contesting.com
> Message-ID: <4fe2a.d6366de.3bc58bae@aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> 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
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|