IBM Instruments Inc. XT Style keyboard on eBay...

[ekeppel]

Is this just an XT Model F with a different badge?  I've never seen one like this, but from what I can find it is possibly the keyboard to an IBM System 9000 or something like that.

http://www.ebay.com/itm/IBM-Instruments-Keyboard-83-Key-AT-5-Pin-K-Excellent-condition-30DayWarranty-/162277525878

Price seems maybe a bit high, but then I have never seen this particular IBM badge on a keyboard before, so perhaps it's one of the harder to find ones?  The badge is certainly intriguing to me.

EDIT: To save a click...

[mike52787]

Thats definitely cool. Not for me though. It could have been from a medical or scientific setting.

[ekeppel]

From the little I could find on the web, IBM had a subsidiary selling chemical analysis tools to laboratory scientists at one point.  This started around 1980 and they closed down that arm of the company in 1987.  Other than that, I don't really know what their product line was or how many were made.  The serial numbers on the System 9000 keyboards I've found on Google are quite low, less than 3000.  This particular keyboard also has a serial number in the lower 3000s.  I'm not sure that it was for a System 9000, but still it would appear at first blush that few were made.

[1391406]

I suspect this is a Model F, though what's different from other XT Model F's would be the lack of tabs on the side to flip the feet out.

[chyros]

I suspect this is a Model F, though what's different from other XT Model F's would be the lack of tabs on the side to flip the feet out.

Yeah, it looks like there's no feet, or a different design, but other than that it looks like a real Model F. The look of the keycaps and the lettering really reminds me of my own XT. Also the strange off-centre divider bar in the case between the F keys and the alpha block.

[ekeppel]

If I remember what I read the other day, this one has the 5-pin connector instead of the 4-pin XT connector, with pin 5 being 'reset' similar to the Leading Edge DC-2014.  Other than that, I think it's XT compatible.

[1391406]

If I remember what I read the other day, this one has the 5-pin connector instead of the 4-pin XT connector, with pin 5 being 'reset' similar to the Leading Edge DC-2014.  Other than that, I think it's XT compatible.

The XT has 5 pins.

[ekeppel]

Yes, 5 physical pins but I think only 4 electrically.  On the XT I thought the 5th pin was not used, and was tied to gnd.  The 5th pin on in this one needs to be connected to something for it to work properly, doesn't it?

Maybe I'm remembering it wrong. I haven't messed with XT stuff in a long time.

[1391406]

Yes, 5 physical pins but I think only 4 electrically.  On the XT I thought the 5th pin was not used, and was tied to gnd.  The 5th pin on in this one needs to be connected to something for it to work properly, doesn't it?

Maybe I'm remembering it wrong. I haven't messed with XT stuff in a long time.

What's different about the pins in the OP's post is that one's shorter than the rest.