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geekhack Community => Keyboards => Topic started by: thealeinman on Sun, 08 July 2018, 16:34:31

Title: IBM Model M advice needed
Post by: thealeinman on Sun, 08 July 2018, 16:34:31
Just found a keyboard for free it was mine from over 20 years ago, trying to modify it and making it look right with the arduino teensy hid inside.   Any ideas on going from SDL to teensy inside the keyboard?  Or I found on similar models where you could solder on a couple of 4.7k resistors to make it functional with normal PS2.  Does anyone know what points those resistors need to be soldered to?(http://)
Title: Re: IBM Model M advice needed
Post by: Tactile on Sun, 08 July 2018, 18:25:43
Info about lots of connectors can be found here (http://www.kbdbabel.org/conn/index.html).
Title: Re: IBM Model M advice needed
Post by: E TwentyNine on Sun, 08 July 2018, 19:16:17
Unless you're going to a PS/2 motherboard, it's simpler to just get a PS/2->USB converter (e.g. bluecube).

The resistor thing shouldn't be needed on a true PS/2 board, but fyi: http://ps-2.kev009.com/ohlandl/keyboard/modify_keyboard/Model_M_Modifications.html

What year is that keyboard?  Pretty sure that particular PCB isn't one we see a lot of.
Title: Re: IBM Model M advice needed
Post by: thealeinman on Mon, 09 July 2018, 10:14:13
its an 84 brought the PCB to work with me so I could desolder the old 6 pin connector, I ordered another arduino to put in the middle so I can keep the original chord.  Going to go from pcb->teensy->old connector through some jury rigged glory.
Title: Re: IBM Model M advice needed
Post by: E TwentyNine on Mon, 09 July 2018, 10:52:10
Think it should be closer to early 90's.
Title: Re: IBM Model M advice needed
Post by: thealeinman on Mon, 09 July 2018, 12:25:46
Sticker on the bottom says 84.  Not sure if its like a shakespeare fishing real from the 30's where the 1960 number on them was actually the model number but it seems unlikely,
Title: Re: IBM Model M advice needed
Post by: E TwentyNine on Mon, 09 July 2018, 12:34:14
They all say 1984 on the printed label.   The born date is something different.
Title: Re: IBM Model M advice needed
Post by: thealeinman on Mon, 09 July 2018, 14:49:28
Ok I see that date looks like a 1993. unfortunately im going off potato pictures i sent to a friend since all i brought was the PCB to work.
Title: Re: IBM Model M advice needed
Post by: thealeinman on Mon, 09 July 2018, 14:54:46
And by potato I mean where is the CSI Miami enhance button when you need it.(http://)