[Johnson] Ranger Idling Current

Don Ehrlich ehrlich at clallambroadband.com
Wed Nov 10 15:51:28 EST 2010


My Ranger draws a little less than 20 ma.  What is your final screen 
voltage?  It should be near zero, held there by the clamp tube.

My guess is you have a poor clamp tube or low/no screen voltage on the clamp 
tube screen.

Just guessing .. but its a place to start looking.

Don K7FJ

> Hello Gents--
> I now have my Ranger in smoke free operation.  I have noticed that the 
> (misnamed) idling plate current is up around 75ma which I suspect is high. 
> Can anyone on the list tell me where it is supposed to be and how to get 
> it down where it belongs?   Thanks.  Brian



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