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Old June 17th 09, 02:37 AM posted to rec.radio.amateur.boatanchors
Richard Knoppow Richard Knoppow is offline
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First recorded activity by RadioBanter: Oct 2006
Posts: 527
Default Hallicrafters S-38 loose lead question


"Bill M" wrote in message
...
Richard Knoppow wrote:


Karl sent me a photo via private e-mail. I opened
and looked at my S-38 and it does not have the wire he
indicated. The wire goes from the antenna tank section of
the bandswitch to the RF grid of the converter tube. The
schematics do not show any other connection to this point
nor is there any sign of on in my RX. I can only
speculate as to why this wire was added. Hallicrafters
made almost continuous changes in the details of their
receivers so its possible this is a factory job but I
doubt it.


Could this have been somebody's fix to work around a bad
rf coil?

-Bill


Maybe but having an untuned input to the converter
would cause all sorts of problems. Since the set works
without the wire connected it suggests the coil is OK but
its easily enough checked.
The wire in the photo he sent _looks_ genuine enough,
at least its the same type of wire used in the rest of the
thing. Very puzzling.



--
Richard Knoppow
Los Angeles
WB6KBL