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Old 19th Apr 2019, 9:07 am   #9
__i4cy__
Tetrode
 
Join Date: Mar 2015
Location: London, UK.
Posts: 69
Default Re: Mystery Keyboard

Quote:
Originally Posted by SiriusHardware View Post
Are you certain it's UK made?
It has those familiar RS type "TESTED" stickers which I have never seen on American equipment. One of the stickers is dated 21/03/79 which leads me to believe it is certainly European. Also some of the TI 74LS chips are marked UK.

Quote:
Originally Posted by Dual Standard View Post
version of the DIN-plug, with a screw-down retaining barrel, was used for the keyboard-connection on some IBM 3270-series terminals
The 5-pin DIN (240°) pin-out is the same, except here the shield pin serves to supply the -12v supply.

Quote:
Originally Posted by davidw View Post
Looks similar to the "dumb terminal" type keyboards associated with the original System X exchange fitted in Woodbridge during the development period.
The chap I bought it from did mention it came from the GPO, although a production environment not a development one.

Last edited by __i4cy__; 19th Apr 2019 at 9:24 am.
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