[GreenKeys] Looking ofr a model 33 keyboard key

[E. Groenenberg]

Ah, thanks for the information.

I fortunately do not have cracked key-caps, but I'll try the sanding &
buffing approach on a spare key-cap first before disassembling the
keyboard.

I also found the part number of the key I want so I'll contact Paul for
acquiring the one I need.

Thanks,

Ed
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On Tue, October 11, 2016 15:43, Jones, Douglas W wrote:
> On Oct 11, 2016, at 3:49 AM, E. Groenenberg wrote:
>
>> I'm going to cleanup my model 33 keyboard by replacing some light grey
>> keys with darker ones which come from a donor keyboard.
>
> First note, keys can be polished to their original color.  Others have
> done that.  The key is, the light grey color is an efflorescence of some
> component of the plastic, and it can be buffed off.  I'll leave it to
> someone who's done that to explan.
>
> Second, you can get new keys.  I had a number of keys that were cracked
> and delaminated, so the grey outer layer of the key was split by some kind
> of chemical expansion of the inner white part.  See the keyboard photo
> here:
> -- http://www.cs.uiowa.edu/~jones/pdp8/UI-8/log2014a.shtml#2014-03-11
>
> Paul Cembura, mr_rtty at pacbell.net, has a good stock of new-old-stock
> keycaps that he's happy to sell.  I bought replacement keys from him for
> most of mine that were cracked.  The challenge is, you ned part numbers.
> You can get an original Teletype parts list or $35, or so Google tells me,
> and it's on line at:
> --
> http://www.virhistory.com/navy/manuals/tty/jh/ttyman1/TeletypeManuals/Model32-33/1184B.pdf
>
> Removing old keycaps to replace them is not too awful.  I discuss how to
> do that here.
> -- http://homepage.cs.uiowa.edu/~jones/pdp8/UI-8/log2015a.shtml#2015-01-29
>
> 		Doug Jones
> 		jones at cs.uiowa.edu