[Hallicrafters] CW Pitch Control assembly fixed.

[Mike Lopez]

Excellant Skip !!
Try this one : drill and tap (2-56 threads) the broken shaft of the
bandspread/main tuning selector on the SX-42 , doing likewise to a 3/16
spare control shaft. Insert a 1" 2-56 screw , bottom it out tight in the
tapped original shaft. Cut the head off and dress the end. Thread on two
appropriate sized nuts and back them tight to each other. Thread on the
spare shaft, tighten and cut to length. Install knob and TADAH . Rotate
clockwise only as original !!

Mike N8AZC

----- Original Message ----- 
From: "Waldo Magnuson" <magnuson at mac.com>
To: <hallicrafters at mailman.qth.net>
Cc: "Waldo Magnuson" <magnuson at mac.com>
Sent: Wednesday, April 07, 2004 8:26 PM
Subject: [Hallicrafters] CW Pitch Control assembly fixed.


>     Earlier I asked the forum if there was a spare "CW Pitch Control"
> assembly for my SX-71 which had been broken off in moving the receiver.
>   Someone had tried gluing the front part of the screw onto the back
> part with the slug.  The glue got into the threads and glued them
> together besides not working.  I got a response for both a NOS and a
> used assembly but with the aid of a machinist friend repaired the
> broken assembly.
>      By using heat I was able to get the glue to soften and I was able
> to back the slug out.  Using a lathe, we were able to turn down one
> part of the screw and drill the other part so that they fit together in
> a sleeve fashion after which we soldered the two together after
> carefully matching up the threads - pretty delicate work joining the
> two 8-32 screw parts together.  It is about 1/8 in. shorter now but
> works good.  I think the repair worked because there was backup
> position of a spare part availability and I wasn't hesitant to try.
> 73,  Skip  W7WGM
>
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> List Administrator: Duane Fischer, W8DBF **for assistance**
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