[MRCA] BC-611 Antenna Plastic Sheath

[WA5CAB--- via MRCA]

The material of the original slotted guide tubes is apparently bakelite.  
Definitely not styrene.  It doesn't melt.

The tube should not touch anything except at each end.  

If your chassis does not have the clear polystyrene antenna support 
modification at the top of the chassis (MWO SIG 11-235-2), you should make that 
mod.  And also the mod to replace the riveted-on threaded block at the top of 
the chassis with a bolt-on (MWO SIG 11-235-4) if your threaded block is 
loose.

If your guide tube repair doesn't hold, I have some new reproduction 
replacements available @ $25 plus shipping.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 09/19/2015 11:17:08 AM Central Daylight Time, 
ka8wtk at ohio.net writes: 
> Hello,
>    The black plastic sheath around the antenna of my BC-611 has broken 
> at the bottom. The antenna is no longer in a position to work the on/off 
> switch.
>    My question would be, what kind of plastic is this? If it is a 
> styrene I can use a solvent glue that welds the broken parts. If it is a 
> Bakelite, i can use a super glue or an epoxy. I am guessing that it is a 
> thermosetting plastic and the epoxy or super glue is the trick.
>    The antenna is stressed over a couple of solder lugs of a tube 
> socket, so it is no wonder the material fatigued after so many years. 
> "Trimming" the solder lugs might allow the antenna to relax a little and 
> not break the plastic again.
>    What has your experience been?
> 
> Thanks,
>              Bill KA8WTK
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