proper chemical / glue for 11/45 switch repair?

Anders Sandahl anders at abc80.net
Sun Feb 15 12:28:21 CST 2015


> Message: 27
> Date: Sun, 15 Feb 2015 15:24:13 +0000
> From: tony duell <ard at p850ug1.demon.co.uk>
> To: "General Discussion: On-Topic and Off-Topic Posts"
> 	<cctalk at classiccmp.org>
> Subject: RE: proper chemical / glue for 11/45 switch repair?
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> 	<A8192EF71C5C4946A240D25EDC8F9448027B4533 at EXMBX16.thus.corp>
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>
>> An -11 owner would be able to say for certain, but the old model
>> airplane solvent glue was methyl chloride.  It's also in a lot paint
>> stripper as well.  "Tenax" model glue is a name that comes to mind.
>
> In the UK, dichloromethane (same stuff) is sold under the brand name
> 'Plastic Weld', It is _by far_ the best way of mending plastics that it
> will
> disolve. And I think DEC front panel toggles fit into that category.
>
> That said, trying to glue the pivot pins back on to the toggle is going
> to be (IMHO) a waste of time. The area is just so small. Personally, I
> would
> drill through the toggle (make sure it's in the exact right direction) and
> put
> a metal pin through.
>
> -tony

It has been done! I did it on my switches on the old 8/L.

http://www.abc80.net/zz/pdp8/DSC_9858.JPG
http://www.abc80.net/zz/pdp8/DSC_9864.JPG
http://www.abc80.net/zz/pdp8/DSC_9865.JPG

I used the core from a copper wire 1,5mm2 since the diameter turned out to
be perfect.

/Anders



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