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Date Posted: 04:25:46 01/20/02 Sun
Author: Potter
Subject: Re: A simple test...
In reply to: Ronald 's message, "Re: A simple test..." on 02:29:39 01/20/02 Sun

Well it was worth a try.
BTW I wouldn't increase the original cap with the S&H connected - sort of defeats the idea of fast acting AGC response. Simply placing 47uF in parallel with the original cap with no S&H connection should give a strong improvement if the problem is in fact here.
Try in parallel and from the pin to ground as the the original ccts usually have a series resistor to ground (to set the RC time constant).

>
>Yes I got the IF AGC PIN correct. It is originally
>connected to a 1uf capacitor at around 3.11V. So your
>circuit works. I have to put a 47uf in the S & H
>circuit.

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