Fwd: [R-390] AGC Voltage

Dennis Wade sacramento.cyclist at gmail.com
Tue Sep 30 01:00:32 EDT 2008


Yep.  I've lost a 16kc and 8kc filter to that problem.  Took a while
for me to run it down, but the good news is it didn't take quite as
long the second time..lol.

          Dennis

On Mon, Sep 29, 2008 at 9:50 AM, David Wise <David_Wise at phoenix.com> wrote:
> This is another well-known problem.  The disk stack inside your
> mechanical filter was originally positioned and cushioned by
> foam inserts.  The foam has disintegrated, and the stack occasionally
> contacts the casing.  I couple of people have opened these up
> and repaired them.  They have written up their experiences on
> the web.  Search the forum archive for "filter".
>
> Regards,
> Dave Wise
>
>> -----Original Message-----
>> From: r-390-bounces at mailman.qth.net
>> [mailto:r-390-bounces at mailman.qth.net]On Behalf Of Mike Hardie
>> Sent: Sunday, September 28, 2008 8:32 AM
>> To: R-390 at mailman.qth.net
>> Subject: [R-390] AGC Voltage
>>
>>
>> First of thanks again for all the terrific suggestions.
>> Yesterday (before
>> seeing some of the suggestions) I unsoldered the top terminal
>> wires from the
>> 16 Kc filter and connected up the ohm meter to the other filters top
>> terminal "common".  Turning the IF deck over and over the
>> problem did not
>> repeat.  To confirm the fault was in the 16 Kc filter the ohm
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--
Dennis L. Wade
KG6ZI
Carmichael, CA



-- 
Dennis L. Wade
KG6ZI
Carmichael, CA


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