[ARC5] ARC-5 tuning crank

[hwhall at compuserve.com]

If someone has an otherwise not useful SCR-274 tuning cable end, I could use one down at the museum. I have a length I can use to attach to two receivers, leaving just one more that needs a cable end.  This is for appearances only.

WayneWB4OGM

-----Original Message-----
From: gewhite at crosslink.net
To: ARC5 at mailman.qth.net <ARC5 at mailman.qth.net>
Sent: Sat, Apr 29, 2023 2:50 pm
Subject: [ARC5] ARC-5 tuning crank

   I made many local tuning cranks for SCR-274N / AN/ARC-5 receivers from ends of otherwise unusable tuning cables. Cut off the end, saving the female spline, the retaining nut and the washer. Take the tuning crank off one of the many three-receiver control boxes and attach it to the spline, usually by drilling a tiny hole and inserting a pin. Looks as though it "belongs" and does a good job. If you can find just the spline you can do the same thing with a standard nut to retain it.
    The SCR -183/283 receivers used a slightly larger spline. I have never (going back into the 1960s) seen the tuning cables for these receivers in surplus...
 - Gordon Eliot White
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