Search found 24 matches
- 13 Oct 2018, 19:52
- Forum: Deskthority talk
- Topic: Has anyone else noticed
- Replies: 1
- Views: 4459
Has anyone else noticed
We lost Mr. Beardsmore's interest a few months back. He seems to have left unceremoniously. Come back sir.
- 25 Sep 2018, 09:11
- Forum: Workshop
- Topic: Fujitsu leaf spring gasket material
- Replies: 3
- Views: 1400
Fujitsu leaf spring gasket material
I have a board with these, and on a few switches the yellow insulating tape/gasket material has fallen out. It seems to be about the thickness of scotch tape and has the effect of slightly dampening the sound. Anybody know of a source for this material, or a source for replacement leaf spring switch...
- 15 Sep 2018, 03:31
- Forum: Workshop
- Topic: Data general protocol
- Replies: 1
- Views: 1011
Data general protocol
Hi gang, does anyone know of or have any kind of protocol data for Data General keyboard<-->terminal connection? I've got a leaf spring 3rd gen board with a db-9 connector and it's using 6 lines -- 2 serial in/out pins, and 4 others called KBIRQ, KBC RESET, CLK COM and SCLK. I'm going by some info i...
- 31 Mar 2018, 20:39
- Forum: Workshop
- Topic: Mia a 122 soon to be opensource, if it works that is.
- Replies: 66
- Views: 17452
- 05 Mar 2018, 21:30
- Forum: Keyboards
- Topic: Modern SKCM Blue Alps
- Replies: 35
- Views: 9097
- 26 Jan 2018, 04:56
- Forum: Keyboards
- Topic: Alps Appreciation
- Replies: 4210
- Views: 1152661
- 11 Nov 2017, 10:30
- Forum: Workshop
- Topic: Strange filmy substance underneath micro-switch ST domes
- Replies: 4
- Views: 1459
Strange filmy substance underneath micro-switch ST domes
In taking apart this Micro-Switch SC keyboard I found a strange dry filmy substance that had been slathered all over the membrane. My guess is that this was placed there intentionally and is not a spill of a beverage or something like that. This is based on the fact that it appears to be "evened out...
- 31 Oct 2017, 00:51
- Forum: Gallery
- Topic: Texas Instruments Low Profile Customizable Layout + Fat Brown Alps?
- Replies: 79
- Views: 35174
- 29 Oct 2017, 13:29
- Forum: Marketplace Help
- Topic: Price check AMKEY 119952
- Replies: 14
- Views: 18640
I have an Amkey board with these switches. It's an XT-layout board with no identifiable model number. Definitely foam and foil. Very smooth keyfeel though, and the case is all metal. I purged all the switches out of mine and am reusing the very solid case, plate and backplate to make another board w...
- 26 Oct 2017, 19:43
- Forum: Keyboards
- Topic: NEC APC-H412 Problems
- Replies: 16
- Views: 3872
Yeah they are kind of hit and miss. Just like alps the condition seems to be key. I have 2, one is in pretty good shape and is usable, the other has the same problems you mention. Lube on the switches does not seem to help, but a drop of lube where each stabilizer wire contacts the plate does help q...
- 24 Oct 2017, 10:40
- Forum: Keyboards
- Topic: NEC APC-H412 Problems
- Replies: 16
- Views: 3872
FWIW I had the same problem with my H412. It would work with both the inline (Belkin) PS/2 converter and the blue cube but be pretty much unusable due to dropped keystrokes and repeat key weirdness. It does work fine on PS/2 directly. You could try one of those "breakout" cables to get around the PS...
- 03 Oct 2017, 03:14
- Forum: Keyboards
- Topic: Decision Data Computer Corporation / Maxi Switch KYBD 2185041
- Replies: 6
- Views: 3421
- 23 Sep 2017, 23:37
- Forum: Keyboards
- Topic: Micro-switch ST.. anything that can be done to save it
- Replies: 5
- Views: 1964
Thanks for the suggestions, greatly appreciated. The SC switch appears to be for the special handling of the 'numlock' key. There is a custom keypad on the left with changeable legend keys, and a numeric keypad on the right. Good to hear that it's possible for these switches to be good, even if not ...
- 23 Sep 2017, 06:00
- Forum: Keyboards
- Topic: Micro-switch ST.. anything that can be done to save it
- Replies: 5
- Views: 1964
Micro-switch ST.. anything that can be done to save it
I have this old board, 1984-ish, that has (what I believe to be) Micro-Switch ST discrete rubber domes . https://preview.ibb.co/d6jSzQ/2017_09_22_19_38_46.jpg In general this is not a great switch. They are very mushy and have hardly any tactility. Some of the domes are completely squashed and have ...
- 18 Aug 2017, 18:43
- Forum: Keyboards
- Topic: how to improve scratchy NEC blue ovals
- Replies: 4
- Views: 1689
how to improve scratchy NEC blue ovals
Hi gang, I have an NEC 'blue oval' board I picked up a few months back and just got around to using it yesterday. I think somebody used the crap out of it, because it types fine, but is very scratchy and rough on the keyfeel. Also if you hit the key even slightly off axis it will bind on the way dow...
- 08 Feb 2017, 09:23
- Forum: Keyboards
- Topic: XT Zenith Z-150 converter?
- Replies: 101
- Views: 74081
- 06 Feb 2017, 19:20
- Forum: Keyboards
- Topic: XT Zenith Z-150 converter?
- Replies: 101
- Views: 74081
At the moment, this is a Z-150 only build that probably does not work with other boards. Wiring is the same, but make sure you have the reset line wired to pin B7 (also same as Soarer's converter). You can use an existing Soarer's converter but only if it is based on the Teensy 2.0, I can post other...
- 06 Feb 2017, 08:36
- Forum: Keyboards
- Topic: XT Zenith Z-150 converter?
- Replies: 101
- Views: 74081
- 28 Jan 2017, 21:35
- Forum: Keyboards
- Topic: XT Zenith Z-150 converter?
- Replies: 101
- Views: 74081
Yeah it's a decent board. I guess my point was that the black label Z-150 is an XT keyboard that does not speak XT. Using a model F as the "standard", the data line (opposite polarity), number of bits (9 vs. 10), and reset line are all different. I'm going to fiddle around with the TMK xt_usb module...
- 28 Jan 2017, 11:29
- Forum: Keyboards
- Topic: XT Zenith Z-150 converter?
- Replies: 101
- Views: 74081
I hooked up this board to a logic analyzer and it clearly speaks a different protocol. Here's an example. This is a "normal" XT keystroke with the DATA line held normally low, and CLK normally high. When ready to send a code, 10 CLK falling edges are sent: 2 start bits, 8 data bits, for a total of 1...
- 14 Jan 2017, 03:27
- Forum: Keyboards
- Topic: XT Zenith Z-150 converter?
- Replies: 101
- Views: 74081
- 13 Jan 2017, 09:43
- Forum: Keyboards
- Topic: XT Zenith Z-150 converter?
- Replies: 101
- Views: 74081
- 30 Oct 2016, 02:48
- Forum: Keyboards
- Topic: Model F XT foam and vibration
- Replies: 9
- Views: 1867
- 29 Oct 2016, 02:21
- Forum: Keyboards
- Topic: Model F XT foam and vibration
- Replies: 9
- Views: 1867
Model F XT foam and vibration
Hi all. I have a Model F XT that I recently took apart and cleaned, also repainted the barrel plate. Some great references and tutorials out there. I did not replace the foam as it seemed to be in pretty good shape. It seems that the keyboard is quite sensitive to vibration. For example if I poke at...