Search found 15 matches

by mmcdowell
15 Apr 2021, 20:44
Forum: For sale
Topic: SOLD: IBM Lexmark Model M 42H1292
Replies: 0
Views: 1396

SOLD: IBM Lexmark Model M 42H1292

Just sold... thanks ! Classic USA-made IBM/Lexmark Model M . I love the feel of this board, but I got my dream keyboard (Unicomp Mini M) and this one shouldn't be languishing in the closet. This was my daily-use keyboard for most of the last year. Shows some minor scratches. most notably one scratc...
by mmcdowell
19 Aug 2020, 06:39
Forum: For sale
Topic: SOLD: IBM Model F XT w/USB, Lexmark Model M, Microspeed Kid Trac
Replies: 5
Views: 2082

Re: FS/FT: IBM Model F XT w/USB, Lexmark Model M, Microspeed Kid Trac

Dikkus wrote:
19 Aug 2020, 05:20
If you don't mind me asking, how bad is it? It's always hard to tell from pictures alone. I noticed from your old thread that it looks considerably more grey in that picture.
It's worn where my hands rest at the bottom; I can try to take pictures in better lighting tomorrow.
by mmcdowell
18 Aug 2020, 17:52
Forum: For sale
Topic: SOLD: IBM Model F XT w/USB, Lexmark Model M, Microspeed Kid Trac
Replies: 5
Views: 2082

SOLD: IBM Model F XT w/USB, Lexmark Model M, Microspeed Kid Trac

All sold now, thanks! I'm working from home now and it's time to downsize to one office's worth of peripherals. First, my IBM Model F XT . I refurbished this and installed a Teensy for USB support; see build thread at https://deskthority.net/viewtopic.php?f=7&t=17673 . Works flawlessly and is an ab...
by mmcdowell
27 Dec 2018, 22:01
Forum: Workshop
Topic: Model F Restoration - input welcome!
Replies: 12
Views: 3708

Update! I daily used this keyboard until this winter, when I decided to tear it apart and make it pretty. I sanded the case down to bare plastic, and painted with multiple coats of grey Krylon plastic paint that appeared to match IBM Industrial Grey fairly well. I also pulled and cleaned the keys, a...
by mmcdowell
19 Dec 2018, 15:02
Forum: Mice & other input devices
Topic: Speeding up an old MicroSpeed trackball?
Replies: 7
Views: 5858

I thought about an optical chopper wheel with more teeth. Trackballworld has a CST rebuild kit that includes new wheels. I'm in correspondence with them regarding whether they would fit; they appear to possibly have more teeth, but it's hard to tell from the picture.
by mmcdowell
18 Dec 2018, 19:53
Forum: Mice & other input devices
Topic: Speeding up an old MicroSpeed trackball?
Replies: 7
Views: 5858

Well, I may have found a fix. The secret is the Windows Registry acceleration curves (found at http://07.net/mouse/ or http://translate.google.com/translate?sl=ja&tl=en&u=07.net%2Fmouse%2F for an English translation). Right now I'm using the slope with an inclination of 90, and it feels pretty decen...
by mmcdowell
18 Dec 2018, 19:12
Forum: Mice & other input devices
Topic: Speeding up an old MicroSpeed trackball?
Replies: 7
Views: 5858

HzFaq, I just tried that and unfortunately it didn't seem to affect the DPI for this model. Thanks, though.
by mmcdowell
18 Dec 2018, 16:58
Forum: Mice & other input devices
Topic: Speeding up an old MicroSpeed trackball?
Replies: 7
Views: 5858

Speeding up an old MicroSpeed trackball?

Hello all, just purchased a classic Microspeed (now CST) Kid TRAC serial trackball mouse that I'm using with a serial to PS/2 adapter. Works great, and I love the feel, but it's too sluggish for my three 1920x1200 screens even with Windows speed cranked up all the way (also changed the MouseSpeed va...
by mmcdowell
17 Nov 2017, 16:06
Forum: Workshop
Topic: Model F Restoration - input welcome!
Replies: 12
Views: 3708

I kinda like the granite idea! Sacrilege? Well, I'm typing this from the Model F, and I have to say that I absolutely love the feel of it! I attempted to use the Teensy wired to an old AT/PS2 adapter, but I kept getting an R05 error from Soarer's converter. After chopping out the old XT cable and wi...
by mmcdowell
16 Nov 2017, 15:40
Forum: Workshop
Topic: Model F Restoration - input welcome!
Replies: 12
Views: 3708

The keyboard came in yesterday, and it actually looks cleaner in person than it did in photos. I'm going to finish up the controller tonight; building it outboard rather than hacking up the original cable. Then, I'll test drive it for a while before worrying about the cosmetics, as they're not as ba...
by mmcdowell
14 Nov 2017, 23:22
Forum: Workshop
Topic: Model F Restoration - input welcome!
Replies: 12
Views: 3708

Thanks for the input, all! Just what I was looking for!

Today, I got the Teensy out and put Soarer's converter on it. I hope to solder it up using an old AT to PS/2 adapter sometime this week, and try it out soon.
by mmcdowell
13 Nov 2017, 16:41
Forum: Workshop
Topic: Model F Restoration - input welcome!
Replies: 12
Views: 3708

Model F Restoration - input welcome!

I've been searching for a cheap model F for a while, and finally found a deal. It's going to need some attention for sure. https://farm5.staticflickr.com/4575/38391637231_774e921239_b.jpg It is on the way now, so I'm trying to plan my restoration. The case needs paint. What would look good on an F? ...
by mmcdowell
29 Jun 2015, 23:51
Forum: Keyboards
Topic: Made an interesting buckling spring find this weekend....
Replies: 12
Views: 3523

I took a look; it has the ribbon cable as you pictured, so it is indeed a membrane switch keyboard. It plugs directly into the main PCB of the device.
by mmcdowell
29 Jun 2015, 18:55
Forum: Keyboards
Topic: Made an interesting buckling spring find this weekend....
Replies: 12
Views: 3523

Halvar wrote: Interesting. If you happen to open it, it would be interesting if it is a capacitive or a membrane keyboard.
The case is rather easy to remove (two screws). What would be the tipoff of the different type, short of disassembling the keybed itself?
by mmcdowell
29 Jun 2015, 18:33
Forum: Keyboards
Topic: Made an interesting buckling spring find this weekend....
Replies: 12
Views: 3523

Made an interesting buckling spring find this weekend....

Genuine IBM buckling spring... https://c2.staticflickr.com/4/3880/19182607486_ee3b0c8563_b.jpg Ibm actionwriter by Micah McDowell , on Flickr But, not a keyboard per se... https://c1.staticflickr.com/1/321/18586201374_6fa5301f3a_b.jpg Ibm actionwriter by Micah McDowell , on Flickr It's a 1985 IBM Ac...

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