[Hallicrafters] Hallicrafters S-38 Buzz

[Patrick A. Thompson Sr.]

If the filter caps have been replaced then its time to check the tubes for
heater/cathode leakage. Start with the 50C5.

Pat, wa4tuk

> -----Original Message-----
> From: hallicrafters-admin at mailman.qth.net
> [mailto:hallicrafters-admin at mailman.qth.net]On Behalf Of David Harms
> Sent: Tuesday, March 25, 2003 8:56 AM
> To: hallicrafters at mailman.qth.net
> Subject: [Hallicrafters] Hallicrafters S-38 Buzz
>
>
> Hi,  I am in the process of restoring a Hallicrafters Model S-38 with the
> help of this forum which has been much appreciated.  I still continue to
> have a fairly loud buzz from the speaker when the unit is turned on.  The
> volume control has no effect on the buzz,  it is just as loud at
> 0 volume as
> at full volume.  I have replaced all of the capacitors with the
> exception of
> the mica caps,  I did not replace those.  I am running the unit
> through an
> isolation transformer, but have also tried it without the transformer and
> still have the buzz.  I have tested the speaker separately with another
> source and it works fine.   Do you think I need to replace the
> mica caps,
> or could it be a bad tube,  or do I need to install a ground wire
> somewhere?
>    I am able to receive stations so the radio does work,  except for that
> confounded buzz!!   Any help or suggestions as to where to start,
> or if you
> could direct me to the appropriate archive would be extremely
> appreciated.
> I am sure this issue has been brought up many times so I
> apologize if I am
> bringing up something that has already been discussed and will
> continue to
> try to research the archives.
> Thanks again in advance for any help you can provide!
>
> Dave Harms
>
>
>
>
>
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