Author Topic: RARE 1984 IBM Model M Clicky Keyboard 1391401 1392090 - Rare or just another Model M? (Read 6165 times)

TexasFlood · « **on:** Wed, 17 November 2010, 20:11:32 »

RARE 1984 IBM Model M Clicky Keyboard 1391401 1392090, BIN $40 OBO

Rare or just another Model M?
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RARE 1984 IBM Model M Clicky Keyboard 1391401 Blue Label

FRU 1392090

This keyboard is in good shape, all keys are in place, has a PS/2 connector, and was working when pulled, so it will not be DOA.

Item specifics

Manufacturer: IBM Compatibility: PC
Keyboard Interface: PS/2 Type: Spring buckle
Country of manufacture: USA Type of cord: PS/2 - Removable
Status: Refurbished IBM badge color: Gray / Blue
Type of keys: 2pc removable Overall Dimensions: 19-3/8"w. x 8-1/4"l. x 2"h.

microsoft windows · « **Reply #1 on:** Wed, 17 November 2010, 20:13:59 »

That keyboard don't look like one of the rare ones. It was probably made between 1988 and 1992 (There were a few white labels made before and after that).

I think the guy accidentally took the copyright date instead of the mfg. date from the label. These keyboards were copyrighted in 1984, but Model M's were only manufactured from 1985 and newer.

Fwiffo · « **Reply #2 on:** Wed, 17 November 2010, 20:15:08 »

Would it have had a PS/2 connector if it was an early one?

microsoft windows · « **Reply #3 on:** Wed, 17 November 2010, 20:19:24 »

Nope. The older PC-compatible Model M's exclusively used 5-pin "AT" plugs. As far as I know, all white/gray labels used PS/2 plugs, but the Lexmark blue labels have come with both.

You could easily attach a PS/2 connector to almost any 101-key Model M though. The cord is removeable, so if you had cables with "AT" or PS/2 plugs, you could stick whichever cable you wanted in the keyboard.

microsoft windows · « **Reply #4 on:** Wed, 17 November 2010, 20:27:04 »

Were the Model M's that Lexmark produced 1391401's? I know that Lexmark produced Model M's that came with "AT" cables.

Pylon · « **Reply #5 on:** Thu, 18 November 2010, 21:02:21 »

Quote from: microsoft windows;248378

Were the Model M's that Lexmark produced 1391401's? I know that Lexmark produced Model M's that came with "AT" cables.

My Lexmark 1398601 came with an AT, and this seems true as others report that 1398601's come with AT cables. However, it may be a cable from a 1390131, as the guy I bought it from had 2 Ms.

KillerBee · « **Reply #6 on:** Thu, 18 November 2010, 21:32:04 »

I allways say shait! I have been dethroned everytime I see a 1984 modem M thread

ch_123 · « **Reply #7 on:** Fri, 19 November 2010, 04:37:58 »

I have no doubts that there are engineering prototypes out there somewhere...

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Author Topic: RARE 1984 IBM Model M Clicky Keyboard 1391401 1392090 - Rare or just another Model M? (Read 6165 times)