[GreenKeys] LESU cables -- Plan B

Tue Aug 22 21:53:50 EDT 2023

John --

Not better than spiral, but I have some old gen-u-ine Bell System waxed
lacing cable, if you want to go that way.

Paul, ad7i

On Tue, Aug 22, 2023 at 8:07 PM w9ddd at tapr.org <w9ddd at tapr.org> wrote:

> I had dreams of placing the LESU in the maintenance position and making
> the 40 C strip connections.  Got that done.  Then flipping the LESU into
> its operating position.  The cackles were just too stiff, no go.
>
> So I spent an hour each cutting the hard stuff off the two cables that go
> up to the C terminals and putting ty-wraps very 2-3 inches to keep the
> wires from going all over the place.  I put them on as I cut off the old
> tubing.
>
> The cables to the printer and the keyboard were workable so I'm deferring
> those until I score some spiral stuff of the right size. Or is there
> something better than spiral?
>
> ---
> ----
> You said "tomorrow" yesterday.
>
>
> The above comments or recommendations are SWAG. Use at your own risk.
>
> John, W9DDD
>
> On Aug 21, 2023, at 8:27 AM, Gary Schulz <mail at gschulz.net> wrote:
>
> The white stuff is the plasticizer which is added to many plastics and
> synthetic materials to make it somewhat flexible or to flow better during
> the molding process.  Many “vintage” plastic materials suffer from the
> migration of these agents over time causing the material to become more
> brittle and fragile.
>
> Gary
>
> Sent from my iPhone
>
> On Aug 20, 2023, at 9:52 PM, Andy KN4UCL <kn4ucl at gmail.com> wrote:
>
> 
> what even is the white stuff? My 28 wiring is replete with the stuff where
> I could not easily wipe it away.
> Is it like a mould or something?
>
> On Sun, Aug 20, 2023 at 9:34 PM w9ddd at tapr.org <w9ddd at tapr.org> wrote:
>
>> I did try leaving it set outside in out 109 degree heat.  Couldn't really
>> see a difference, but I do have a 1000 degree heat gun I might try.
>>
>> If nothing else the armor all will take the white stuff off.
>>
>> ---
>> ----
>> You said "tomorrow" yesterday.
>>
>>
>> The above comments or recommendations are SWAG. Use at your own risk.
>>
>> John, W9DDD
>>
>> On Aug 20, 2023, at 8:04 PM, Jeffrey Golas <jeffg at junknet.net> wrote:
>>
>> Heat them up with a hair dryer!
>>
>> Jeff
>>
>> On Aug 20, 2023, at 7:18 PM, w9ddd at tapr.org wrote:
>>
>> 
>> Cables going to the printer connector, the keyboard connector and to the
>> terminal strips at the back of the 28 cabinet get white stuff on the
>> surface of the plastic (vinyl?) sleeve.  The sleeve also gets stiff.
>>
>> I'm trying to do a LESU transplant and the new one was stored with the
>> cables wrapped around the LESU resulting in them being set in positions
>> incompatible with how they need to lie in the cabinet.
>>
>> I've seen these sleeves in both black and clear versions.  Since they
>> both get the white stuff with age I assume similar materials.  Current
>> project is the clear version.
>>
>> I've started some treatment with Armor All based on web search info.
>>
>> I'm certainly open to better options.
>>
>> ---
>> ----
>> You said "tomorrow" yesterday.
>>
>>
>> The above comments or recommendations are SWAG. Use at your own risk.
>>
>> John, W9DDD
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> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
> https://teletype.net/gksearch
> >>> 2002-to-present greenkeys archive:
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> >>> 1998-to-2001 greenkeys archive:
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> http://comcents.com/tty/greenkeyssearch.html
>
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