[Milsurplus] BC-348 rear cabinet opening (was Wanted X2)

[Michael Hanz]

I took a couple of pictures of the seal box with my new digital camera,
but left the instruction book at work so I have no idea how to upload it
at the moment.  Will forward this weekend when I have a free minute -
anyone else who wants to see them please let me know.  It's certainly
replicable, although since the original is a die casting, doing it to
identical measurements means hacking it out of a solid 2" cube of
aluminum on a reasonable sized milling machine.  Not difficult but it
would take time.  It is held onto the case by a total of 6 screws, with
a square piece of 3/16" gray felt on the face surrounding the connector.

73,
Mike

Todd Bigelow - PS wrote:
> 
> Rolynn sent me some shots of the back of his set and sure enough, there were the
> two screws. The pictures clearly showed these screws in place, perhaps holding
> something on the inside like a seal or gasket? I'd guess it was installed inside
> and no left to protrude from the otherwise-smooth back of the cabinet. I had
> thought there was some kind of a plate that went over the back after the connector
> was in place, but the connector looks to be pretty much flush with the back of the
> cabinet.
> 
> I did see what looked like a small, rectangular gasket or seal in one of the
> manual pictures. Indeed, mine is missing in the good set as well as the modified
> 'parts' unit. They probably make the stock dynamotor look common in comparison,
> too.
> 
> It doesn't look like it would be too much of a job to fabricate a replacement,
> though. Perhaps a small aluminum frame to mount onto the cabinet and affix the
> seal to, then it's only a matter of making a gasket that seals tight to the
> connector? Probably not something I'll get to immediately.
> 
> Thanks to all for the suggestions, ideas, and other help. Never a day goes by that
> I don't learn something on here.
> 
> 73 de Todd/'Boomer'  KA1KAQ
> 
> Michael Hanz wrote:
> 
> > The #6-32 holes are to mount a dust seal, Todd.  It's a rectangular box
> > with a hole in the front and a felt seal to keep gremlins and dirt out
> > when the receiver is mounted on the shock mount.  Often discarded, it's
> > an important part of the receiver case.  Sounds like yours went the way
> > of the dustbin...
> >
> > 73,
> > Mike Hanz  KC4TOS
> >
> > Todd Bigelow - PS wrote:
> > >
> > > I can understand how the connector fits to the shockmount, but the back of
> > > the receiver cabinet still has a rectangular opening and screw holes, as if
> > > something more like a cover or plate is missing. I was told that the
> > > connector was attached to the shockmount *and* the cabinet, so that when the
> > > screws were loosened and the radio slid out for servicing, the connector and
> > > cabinet stayed locked to the shockmount. Makes sense, but it still doesn't
> > > explain the hole on the rear of the cabinet, behind the connector. My
> > > connector is enclosed and has an aluminium sleeve at the bottom for the
> > > wires to exit, but nothing to mate up with the opening on the back.