[Milsurplus] Ceramic wafer switch repair on a TBX-2

[jcoward5452 at aol.com]

Possibly all your solutions will work to some extent.I have a similar 
problem with a switch in my GO-9.A swap meet "knob twister" cranked on 
it and busted up the ceramic on the rotor.I have a replacement but have 
yet(how many years has it been?) to get in there and do the work.These 
large ceramic switchs have pretty stiff springs for the detent and need 
to be lubed;otherwise it takes a lot of torque to rotate and old 
ceramic seems to get brittle with age.Someone on this or another 
related list recently mentioned JB Weld.I've never used it so have no 
clue if it would work on a switch.It may be impregnated with metal and 
thus be a source of arc over in a high RF voltage situation.
 Good luck and keep us posted as to your results.
 Jay KE6PPF

-----Original Message-----
From: jmccarty at lucent.com
To: milsurplus at mailman.qth.net; boatanchors at theporch.com
Sent: Tue, 5 Sep 2006 12:04 PM
Subject: [Milsurplus] Ceramic wafer switch repair on a TBX-2

Groups;

         I have a TBX-2 I've started working on, and noticed that the 
fine
inductance rotary switch, which is a ceramic wafer with eight contacts, 
is
broken in three pieces.

    First question, anybody got a spare ??


         Second question, failing finding a replacement, is it possible 
to fix
this thing. One of the three pieces is still on the long bolts that 
mount this
switch to the next one. The other big piece is loose hanging on it's 
stiff wires
and looks like it can be glued back into place. But, the third little 
piece,
which only has two contacts seems to be missing material on both ends 
where the
holes would have been to mount the wafer. If I glue the two bigger 
pieces back
together, is there some kind of "filler" that would allow me to glue 
the third
piece back in place, or, is it possible to "sister" a piece of hard 
plastic to
the piece of ceramic with some glue and then use the new piece hold the 
switch
together?



                                                                         

73 + tnx


                                                                         


John n9hrt
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