[vcf-midatlantic] mYSTERY KEYBOARD

Jonathan Gevaryahu jgevaryahu at gmail.com
Tue Jan 22 23:16:39 EST 2019


On 1/22/2019 7:57 PM, Neil Cherry via vcf-midatlantic wrote:
> I have a mystery keyboard from around 1985. I know the following:
>
> - Keytronics model unknown
> - CPU (?) markings
>   30293-e
>   20-04592-054
>   GI 8215 CDA
>
>   19-4148-01 REV 1
>   PCB         01
>   A65-02395 -201A
>
> Images:
> https://ushomeautomation.com/images/mystery-kb-back.jpg
> https://ushomeautomation.com/images/mystery-kb-front.jpg
>
> What I haven't done so far is to power it up. And I'm not sure if the
> EPROM is actually original to the keyboard.
>
Also see http://www.citylan.it/wiki/images/9/9b/1082_readme.txt for a 
similar keyboard from 1979 with an older microcontroller mask rom rev, 
and http://kbdbabel.org/kbdbabel_doc_schematics_200904.pdf which is the 
keyboard from an HP-150

-- 
Jonathan Gevaryahu
jgevaryahu at gmail.com
jgevaryahu at hotmail.com



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