[Hallicrafters] coupling

[Roy Morgan]

On Jun 23, 2008, at 9:59 PM, Jack Schrader wrote:

> Not  really hallicrafters but at least it is ham radio related.
>
> After taking apart my Viking Valiant I found a problem. The  
> insulated coupling that connects the vfo tuning knob shaft and the  
> tuning mechanism behind it is broken.

Jack,

Those things are moderately unobtainable and quite fragile and subject  
to breakage.

Here's what I suggest:  Rebuild it.

Remove the remnants of the phenolic disk by drilling out the rivets  
that hold it.  Find some similar material that's modern (a thin sheet  
of lexan, maybe) and fabricate a functional equivalent.  The new  
"disk" may not need to be round, and may have some slots instead of a  
big punched hole in the middle.  Then drill the new "disk" to suit and  
re-assemble with 4-40 or 2-56 hardware.

While you are contemplating the whole thing, send an email with the  
particulars to the fellow at  ... Play Things of the Past.  He lists  
them under Hardware as "Flex Couplings".  Send him an email with what  
you need.

www.oldradioparts.com

(Radiodaze is another place to try but Play Things of the Past has  
long lists of parts from old radios.  He's recently been on vacation  
but might be back by now. )

Good luck.

Roy

Roy Morgan
k1lky at earthlink.net
Lovettsville, VA 20180