[ARC5] Receiver Selectivity

[Kenneth G. Gordon]

On 20 May 2013 at 16:42, Fuqua, Bill L wrote:

> It appeared to work great with my 40 meter receiver. But you had to
> remove AVC from the that IF stage so that feedback was independent of
> RF gain and avc levels.

Ah! That makes sense: I never did that at the time some 50 years 
ago...obviously I should have, if I had known about it.

>  I could set it right on the edge of oscillation and get great CW
>  selectivity. But not so much as compared to modern radios.

No, but the improvement you did get was substantial and made the receiver 
very much more usable on 40 meters.

Ken W7EKB