[Heathkit] Fwd: IG 18 audio Generator

[Ian Wilson]

Looking at the schematic, the most likely candidate appears to be L2,
the small incandescent lamp used in the amplitude stabilization feedback
loop. Otherwise, one of the electrolytics in the signal path would come
under suspicion.

73, ian K3IMW

On Fri, Dec 4, 2015 at 3:01 PM, Ralph S. Turk <w7hsg at comcast.net> wrote:

>
>
> ----- Forwarded Message -----
>
> From: "Ralph S. Turk" <w7hsg at comcast.net>
> To: "heathkit-bounces" <heathkit-bounces at mailman.qth.net>
> Sent: Friday, December 4, 2015 8:10:02 AM
> Subject: IG 18 audio Generator
>
> Hi all
> I have a IG 18 with a problem. The oscillator has a unwanted oscillation
> in that
> the signal is pumping up and down (from 0 to 100%) and slowly settles down
> until
> you change the frequency or level and then it starts all over again.
> I seem to remember there was a fix for this problem but I can't remember
> where I saw it.
>
> Any Ideas??
> Ralph, W7HSG
>
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