[ARC5] AGC in the AN/ARC-5 receivers.

[Kenneth G. Gordon]

On 3 Nov 2013 at 3:23, Fuqua, Bill L wrote:

>   That would be over 50mA current for the tube.
> And around 1W dissipation in the cathode resistor.
> Does not sound right at all.

See and read page 23 of the AN 16-30ARC5-2 manual, paragraph 4-18 
AUTOMATIC VOLUME CONTROL. 

I thought it was a bit much myself.

I suppose there COULD be a typo.

I measured the AGC voltage with a VTVM when the RF gain control was 
wide open on 5 MHz. WWV in an R-26/ARC-5 receiver recently. 

AGC voltage was 8 VDC...and the audio level was WAY too loud to listen to 
for more than a few seconds.

Also, however, AGC voltage didn't even begin to show up until the audio was 
already too loud to listen to for very long.

There IS a big "delay" voltage...

Ken W7EKB