[Boatanchors] Regenerative IF
Bob Kulow
edison1946 at gmail.com
Sat Dec 27 17:01:51 EST 2014
Sounds to me like the AGC is being blocked. Put a VTVM on the AGC line and
see how long it takes to decay after turning the regen down.
73
Bob WA2UEH
On Dec 27, 2014 4:58 PM, "Bill and Liz" <magoo at isp.ca> wrote:
> I have a homebrew receiver in the shop with a funny problem. It has a
> regenerative IF stage and if you accidentally run up the regen control too
> far it breaks into oscillation and won’t come out for several minutes. The
> whole receiver is “paralyzed”-there is no reception at all; very slowly it
> begins to recover, a process which takes another few minutes.
>
> Anyone suggest what is happening and possibly how I can stop it from
> happening? I have no experience with regenerative receivers. Other regen
> receivers I have played with will go into oscillation but will come out
> quickly as soon as you back off the control below oscillation point.
>
> Bill VE3NH
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