[Photos] HP HIL keyboard 98203C

This is my first HP HIL device and I have never had keyboard that requires 12V power supply until this.

http://imgur.com/a/m9ZL4

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HIL device have SDL receptacle as its interface, to be exact, 4-contact SDL. It is physically diffrent size from 6-contact one IBM had used. Unfortunately SDL cable didn't come with my keyboard.

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HP-HIL Technical Reference Manual:
http://bitsavers.informatik.uni-stuttga..._Jan86.pdf
hasu
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Unread post09 Aug 2017, 05:34

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hasu
 
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Wow that shape of that case is awesome! Congrats on your rare find, I've never seen this one before.
Last edited by seebart on 09 Aug 2017, 15:06, edited 1 time in total.
seebart
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Unread post09 Aug 2017, 06:04

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Nice! I found two of these in elecplus's warehouse that I sold on he behalf to a collector in Colorado. Looking forward to a teardown!
XMIT
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Unread post09 Aug 2017, 08:56

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Click on the first link, you will find the basic teardown.
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Unread post09 Aug 2017, 11:52

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Well, this is pretty!
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Unread post09 Aug 2017, 16:37

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I don't think I've ever seen a 4×5 numpad without any double (or triple) keys. I like it!

(although I would make a few changes in the layout)
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Unread post10 Aug 2017, 01:44

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Oh, it looks like the keyboard for this HP 9816.

The HP 9826A and HP 9836 computer had a built-in keyboard in almost exactly that layout, except for the left Shift key not being stepped. According to the links there, there were later models of both computers with a detachable keyboard that were supposedly only sold in Europe.

I have had a HP 9826A that was missing keys and the tops of switches on some of those. It had instead Cherry M10 or M11 switches (they look the same, so I don't know..) which were really fragile and a few broke when I pulled keys.
The HP Museum page for the HP 9816 mentions that the detachable keyboards were less fragile and did not loose keys as easily. I suppose that is because of the different choice of switches.
Instead of a PCB with a controller and internal HIL, the (rainbow-coded) ribbon cable was connected directly to the motherboard.
And the computer was also encased in really thick plastic throughout, plus metal inside.
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Unread post10 Aug 2017, 09:44

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