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geekhack Marketplace => Great Finds => Topic started by: jacobolus on Thu, 28 January 2016, 20:04:08

Title: XT-layout Cherry KXN3-8451, no top case
Post by: jacobolus on Thu, 28 January 2016, 20:04:08
Kind of interesting thing, I’m guessing MX switches:
http://www.ebay.com/itm/331625502180
(http://i.imgur.com/AatXeKT.jpg)
(http://i.imgur.com/oyTJsEs.jpg)

There was a discussion about another one of these on Geekhack in 2010, but sadly the images were hosted on imageshack and are now all dead:
https://geekhack.org/index.php?topic=10108.0
Title: Re: XT-layout Cherry KXN3-8451, no top case
Post by: jevvix on Thu, 28 January 2016, 21:02:31
Really odd keyboard. Only thing on google says that PN is some sort of IR wireless keyboard, which would explain the extra circuitry and batteries.

Based on the LED placement I don't think that it has MX switches. The couple of old Cherry keyboards I have with LEDs on key caps like that are windowed in classic Cherry fashion.

Great price for a vintage Cherry enthusiast.
Title: Re: XT-layout Cherry KXN3-8451, no top case
Post by: jacobolus on Thu, 28 January 2016, 22:15:16
The couple of old Cherry keyboards I have with LEDs on key caps like that are windowed in classic Cherry fashion.
From ~1984?

The speculation from the other thread was that this might have been compatible with the IBM PC Jr, as it has a "Jr / Sr" switch on the back.
Title: Re: XT-layout Cherry KXN3-8451, no top case
Post by: jerue on Thu, 28 January 2016, 22:19:18
vintage mx blacks.

The image links are dead, but google has cached them (https://www.google.com/search?q=cherry+knx3-8451&safe=active&espv=2&biw=1920&bih=955&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiV9dyRlc7KAhUDSyYKHbc1AhYQ_AUICCgD#safe=active&tbm=isch&q=cherry+knx3-8451+keyboard&imgrc=sftMIZAKROQoNM%3A).

it's a good price for them. but, plate mounted + shipping costs + no desoldering/soldering iron = I'm too lazy.
Title: Re: XT-layout Cherry KXN3-8451, no top case
Post by: snuci on Fri, 25 March 2016, 11:46:33
I acquired this keyboard.  Pics are posted at DeskThority here: https://deskthority.net/photos-f62/cherry-pcjr-keyboard-early-mx-switches-and-dcs-key-caps-t13390.html

Thanks for the hint on the IBM PCjr.  I think you guys are right but I won't know until I get an IBM PCjr :)