[issue]My model m 1390120 has a yellowed ABS keycap(not original)

[terrycherry]

As I see the front and back of this "\" keycap, the design is differ other keycap and it's the two-piece keycap.
I confirmed that keycap wasn't the original one and it was replaced by the seller.
Did anybody know which model m the keycap came from? As I know model m keycaps are PBT.

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right side

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right side

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right corner

[scottc]

Interesting. I've never seen this before. It looks pad-printed too.

[andrewjoy]

It smells of a 3rd party cap to me. the clips to hold it to the slider are off and the injection point on the back of the cap are in different locations.

EDIT

Its spoilt the board now you will have to give it to me ( the whole thing)

[terrycherry]

And the keyboard has the linear on the left shift and enter(I think it's the part fault, I"ll fixed it when I brought the screws to make my "drill screw mod").
It could be give me the idea to make the model m to linear

[seebart]

Yeah terrycherry that's just a lousy replacement cap and your left shift probably just has a problem with the spring. But this 1390120 is well worth a fixup, the Model M. That's why andrew is drooling over it.

[terrycherry]

I'm looking for the cheap and metal label a year, although I owns the Lexmark grey logo model m.
This USD7.9 metal logo model m has the excellent condition inside(metal plate and something else) instead it looks very dirty.
I clean it two days ago and assemble it now to test.

[seebart]

Keep us updated! I got a little Model M project but I'm not sure what to do with it yet.

Spoiler:

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[clickykeyboards]

The yellowed key cap might have come from something like an IBM model M clone, such as an AT&T buckling spring keyboard or perhaps an Ambra model M.

See link for AT&T buckling spring keyboard from 1989
http://www.clickykeyboards.com/index.cf ... /id/565017

For example, the keycaps on the AT&T keyboard are interchangeable with the IBM model M and they have the same familiar 2-piece key cap design (even the AT&T space bar has a 2-piece key design). AT&T's font is different than the IBM standard one. I have a couple of the AT&T buckling spring keyboards that have the yellowed plastic key problem.

Should be easy to find a | \ replacement key to restore your model M keyboard to original IBM condition.

AT&T KBD 305B buckling spring keyboard clone

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[terrycherry]

clickykeyboards: Thanks for the hints. I always looking your site when I haven't the model m before^^
I have seen the keycap symbol with AT&T buckling spring and Ambra model M. They're not same to my yellowed keycap.
Although this could be came from the Chinese IBM clone.

seebart: Great grey case. What should you do to her?

[andrewjoy]

I'm looking for the cheap and metal label a year, although I owns the Lexmark grey logo model m.
This USD7.9 metal logo model m has the excellent condition inside(metal plate and something else) instead it looks very dirty.
I clean it two days ago and assemble it now to test.

I have a terminal 102 model m that has a silver label , its not quite as good as the orignal M but its close

[seebart]

seebart: Great grey case. What should you do to her?

not sure, the case is from webwit's duck boutique, the guts are from a 1390133 from 1987. I was planning on getting a industrial badge reproduced in a 3D printer. But I would need really exact measurements for that.

[terrycherry]

I'm typing with this keyboard right now. The sound and pressing is more lighter than Lexmark's model m.
10keys should be fix when I brought the nice screws.

seebart: It should be great. I hope to buy the 3D printer and make the Hi-tek slider. That's would be an excellent replacement for keyboard.

[TacticalCoder]

seebart: Great grey case. What should you do to her?

not sure, the case is from webwit's duck boutique, the guts are from a 1390133 from 1987. I was planning on getting a industrial badge reproduced in a 3D printer. But I would need really exact measurements for that.

Nice... I have one real industrial and four or five (I've lost count) full-size industrial shells back from when Unicomp still had these NOS.

What I did on my "favorite" one is to scavenge the keys, IBM badge and num-lock/caps-lock/scroll-lock badge from a black IBM M13. At first I bought the black M13 only for its white-on-black keycaps (keycaps which I put on my real industrial) but then I realized I could reuse the badges on one of my industrial shell.

If you come up with a nice 3D printed model, I'm interested in it. I don't have enough 3D skills to model that sadly although I can open a 3D model in Blender and sent it to iMaterialize.com to have it printed

[Muirium]

You know you're dealing with veterans when you hear they have a whole stash of industrial shells from Unicomp. Those were the days! Didn't pickup any of their SSKs did you?

[terrycherry]

I saw the early 1986year model M 1390120 PCB(with barcode label) is different the normal 1390120 has.(Sandy did not know it.)
http://sandy55.fc2web.com/keyboard/mode ... ml#5640991

My keyboard was made from 1986.03.25(has barcode label) same as clickykeyboard's 1390120 1986.02.17 made(with barcode label) PCB.
My point is: what's that 1351544 electronic? I never seen this on PCB even on others keyboard!

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[clickykeyboards]

@terrycherry, I've seen only a dozen or so early model M controllers like that with the 4.00Mhz crystal from early 1986 (1390120 and 1390131) and also this very early 1985 model M

http://www.clickeykeyboards.com/model-m ... years-old/

1351525 model M controller board from 18th week of 1985

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[kbdfr]

[…] crystal […]

[Chyros]

MANDOLIN CRYSTAL IDENTIFIED

[chzel]

[terrycherry]

Clickykeyboards: Thanks for more information about it. I glad to own the model m with this beauty electronic "crystal" component!
You guys made some joke ha. I like that cross=]

[andrewjoy]

Oooo a ceramic IC, no IBM style cans tho. Has any one ever seen them in a model M ? IBM love them , there early systems that where discrete logic where all IBM cans and they looked so cool.

I wish all ICs where ceramic, would help with passive cooling no end, i would pay a premium to have all the support ICs on my motherboard be ceramic and all the nasty electrolytic caps replaced with tantalum caps.

I miss the days when CPUs where ceramic too. We pay shit loads for the top end xeons and i7s you would think they could put them in a decent package and not that die on PCB shit.

[TacticalCoder]

You know you're dealing with veterans when you hear they have a whole stash of industrial shells from Unicomp. Those were the days! Didn't pickup any of their SSKs did you?

He he... Veteran is not a bad name: I bought my first Model M on eBay before Geek Hack even existed (so obviously before DT existed too). But I don't have a collection anywhere near as impressive as, say, Webwit has. I "only" have about eight Model Ms or so, my daily HHKB and a NIB ISO Cherry MX-5000 and that's it: not bad, but nothing too crazy

Sadly, no, I don't have any SSK industrial shell: nor any SSK for that matter

[Muirium]

Mwa ha hah!



I've got 3 SSKs, but no industrials. And a Kishsaver, but no MX5000. So we're pretty much even.