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Thread: Anyone scrapping a Thinkpad? Looking for keytops.

  1. #11
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    Yup, they're plunger-type. My thought is that these can't be unique, given the fact that these are barely mentioned on the web.

    But maybe it's so. IBM throwing good money after bad.

  2. #12
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    They don't look like anything on my Thinkpads; maybe from a desktop?
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    Last edited by MikeS; January 8th, 2020 at 05:39 PM.

  3. #13
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    Nope, not that either. It's a plunger-type of course, but the plunger is rectangular:

    2020-01-08-191358.jpg

    Keystroke is about 3/16"; about the same as a model M.

  4. #14
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    Somewhere around here I have a black IBM keyboard with PS/2 type connection that might have those kind of keycaps, will have to look.
    What I collect: 68K/Early PPC Mac, DOS/Win 3.1 era machines, Amiga/ST, C64/128
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  5. #15
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    I have to say that keyboard gives me some strange deja vu for the keyboard that came with the i-Opener network appliance I was hacking on back in the day; said machine was (in)famous for its dedicated "Pizza" key.

    640px-2008-04-25_Netpliance_i-Opener_pizza_key.jpg
    My Retro-computing YouTube Channel (updates... eventually?): Paleozoic PCs

  6. #16
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    It's an odd bird, but for $10 on sale for a full-travel IR keyboard NOS is pretty cool. Transmission is 1200N81 and a simple 3-terminal 38KHz IR receiver is sufficient to see the thing from across the room. No elaborate protocol; the thing doesn't feature an IR receiver. I use them with MCUs (they usually have a couple of spare UARTs that go unused) and some rack-mount PC stuff. 4xAA cells for power.

    I designed a Blue Pill receiver for the thing that converts the data to PS/2 interface. Works just fine. I posted the source on Github, but so far, little interest.

    I don't have much call for USB interface, but someone could build off my code and provide a USB version that also supports the joystick "nipple" in the upper right corner of the keyboard.

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