[Boatanchors] Anyone know a source for replacement Hallicrafters FPM-300 bandswitch plastic toothed gear wheel?

[howard holden]

You can also try Winfred M Berg, which specializes in pulleys sprockets 
gears belts etc.

wmberg.com

73, Howie WB2AWQ


On 10/31/2017 2:58 PM, Mike Langner wrote:
> Hello everyone !
>
> I'm trying to bring an FPM-300 back to life.
>
> Thanks to Greg Trook I have a correct replacement toothed belt for the
> bandswitch shafts that must turn together, but the transceiver I got from
> EBay some years back is missing one of the little nylon or plastic toothed
> gear wheels - the unit, of course, needs two of them - one on each of the
> two shafts that must turn together.
>
> Might anyone know where I could obtain another one?
>
> Nothing I've found (yet) at McMaster Carr comes close --
>
> If none are available, I'll look for someone with a 3D printer and see what
> it would cost to duplicate this one.
>
> It's not clear to me that a 3D scanner and printer could/would duplicate
> both the outer features (flanges and teeth) and also duplicate the unusual
> almost-oval hole for the shaft.  In order to make the little toothed belt
> gear wheel not slip on the control shaft, the control shafts are ¼ inch with
> two opposing flat sides, so drilling a round hold won't work.
>
> Many thanks in advance for any guidance you can offer !
>
> Mike/
> K5MGR
> _______________________________
>
>   
>
> Mike Langner
> 929 Alameda Road NW
> Albuquerque, NM 87114-1901
>
>
>
> (505) 898-3212 home/home office
> (505) 238-8810 cell
> mlangner at swcp.com
>
>   
>
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