[ARC5] Potentiometer value needed

Kenneth G. Gordon kgordon2006 at frontier.com
Sat Aug 9 23:37:12 EDT 2014


On 9 Aug 2014 at 20:37, D C _Mac_ Macdonald wrote:

> 
> I wonder if a concentric (dual) wirewound pot could be found 
> to serve as both RF/IF gain AND audio gain controls.

That sort of thing only works well when the receiver is set in AGC mode for 
AM. I thoroughly dislike that method of gain control. Many military receivers, 
like the BC-348, RCH, etc., used that method and it is a terrible method in 
my opinion. Separate RF and AF gain controls give much more freedom to 
adjust things the way you want them.

>  OR a 
> pair of miniature pots for that purpose?

I mount 'em on the front "panel". There is JUST enough room.

Ken W7EKB


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