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Author Topic: Silicon Graphics RT6856  (Read 4103 times)

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Offline Parabellum

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Silicon Graphics RT6856
« on: Fri, 23 July 2010, 15:36:57 »
http://cgi.ebay.com/Silicon-Graphics-RT6856T-Keyboard-AQ6-CYPRESZ15-/320344890217?cmd=ViewItem&pt=PCA_Mice_Trackballs&hash=item4a960b1b69

These keyboards are rubber-domes, right?
I'm pretty sure only the AT101's are mechanical, but the heck do I know.
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Offline washuai

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Silicon Graphics RT6856
« Reply #1 on: Fri, 23 July 2010, 15:45:32 »
I'm not sure about that SKU model number, but there are Silicon Graphic ALPS boards out there.
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Offline Findecanor

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Silicon Graphics RT6856
« Reply #2 on: Fri, 23 July 2010, 16:08:30 »
Yes, that one is a rubber dome keyboard, manufactured by NMB.

You had posted a picture of a KeyTronic in a Swedish layout earlier. I have got one of these in Swedish layout, if you are interested ...
It has got a key travel of 3.5 mm. Low resistance, but distinct when you bottom out.
Curved steel back plane with all keys the same size.
However, the keys rattle, and this rattling is quite loud even though the keys are otherwise quite stable. The front edge of the space bar also gets in the way a bit.
« Last Edit: Fri, 23 July 2010, 16:30:25 by Findecanor »
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Offline Parabellum

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Silicon Graphics RT6856
« Reply #3 on: Fri, 23 July 2010, 16:24:07 »
No thanks, I'm looking for a mechanical right now.
« Last Edit: Fri, 23 July 2010, 17:58:44 by Parabellum »
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Offline ch_123

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Silicon Graphics RT6856
« Reply #4 on: Fri, 23 July 2010, 17:54:30 »
Quote from: Parabellum;205662
http://cgi.ebay.com/Silicon-Graphics-RT6856T-Keyboard-AQ6-CYPRESZ15-/320344890217?cmd=ViewItem&pt=PCA_Mice_Trackballs&hash=item4a960b1b69

These keyboards are rubber-domes, right?
I'm pretty sure only the AT101's are mechanical, but the heck do I know.


There are also non-PS/2 SGI Alps keyboards out there.

The catch? They use the same connector as the PS/2, but if you mix them up, bad things happen.
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Offline D-EJ915

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  • Location: USA
Silicon Graphics RT6856
« Reply #5 on: Fri, 23 July 2010, 18:50:51 »
Quote from: ch_123;205716
There are also non-PS/2 SGI Alps keyboards out there.

The catch? They use the same connector as the PS/2, but if you mix them up, bad things happen.

Those are pretty easy to spot though. what it looks like (well if you have a decent picture of it lol)

Annoying thing is there was a regular PS/2 one which was also beige here
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Offline ch_123

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Silicon Graphics RT6856
« Reply #6 on: Fri, 23 July 2010, 18:52:48 »
I think there was a granite version of those too?

Either way, you can tell them apart because the Indigo one has a flat surface, whereas the later AT-101 one is curved.

Can always check part number though...
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