Search found 942 matches

by HaaTa
20 Oct 2020, 01:08
Forum: Keyboards
Topic: NEC DT-KCD2000C Type A
Replies: 7
Views: 516

Re: NEC DT-KCD2000C Type A

Rayndalf wrote:
19 Oct 2020, 10:48
How do you go about finding things like this?
Patience :lol: (the previous one I found in 2012).
by HaaTa
19 Oct 2020, 08:36
Forum: Keyboards
Topic: NEC DT-KCD2000C Type A
Replies: 7
Views: 516

NEC DT-KCD2000C Type A

Long time (no post)! I'm still around, and still gathering keyboards :mrgreen: Sadly life has made it more difficult to actually photograph and measure force curves... Anyways, I have something special that just arrived from Japan. An NEC DT-KCD2000C Type A keyboard. I'm not entirely sure what syste...
by HaaTa
24 Sep 2020, 21:11
Forum: Gallery
Topic: The Problem with Mechanical Switch Reviews
Replies: 41
Views: 34975

Re: The Problem with Mechanical Switch Reviews

I'm a bit stuck right now with graphs.
Plotly removed their paid accounts so I don't have an option to post any more plots there...
So I need to come up with another option (and sadly I don't have time to build something right now).
by HaaTa
14 Jun 2020, 20:09
Forum: Gallery
Topic: The Problem with Mechanical Switch Reviews
Replies: 41
Views: 34975

Re: The Problem with Mechanical Switch Reviews

Yeah, texture analyzers work. The software tends to be a little bit painful to work with, but usually workable.
eBay prices can be good though full price is usually painful.
by HaaTa
05 May 2019, 04:32
Forum: Keyboards
Topic: IDENTIFY THE KEYSWITCH thread
Replies: 314
Views: 39992

Re: IDENTIFY THE KEYSWITCH thread

Found an old numerical keyboard from what looks like the 60's on ebay. Sorry for the low quality image: Switches.png What could the switches be? Those look like Honeywell Micro Switch magnetic reed switches. Those were common in the 60s. My guess is that there's a kind of cover over top. The screw ...
by HaaTa
21 Apr 2019, 20:34
Forum: News
Topic: Modern Beamspring? - The Silo Beam Switch
Replies: 56
Views: 15701

Re: Modern Beamspring? - The Silo Beam Switch

Beamsprings for the REST of us. Now this is becoming a a proper switch which should gain full support as time progresses. Sick and tired of seeing $2000-5000USD various keyboard models for sale on Ebay. Just hope this new Beam Spring doesn't follow the very same price guide line as well. We're tryi...
by HaaTa
08 Nov 2018, 01:36
Forum: Gallery
Topic: Decision Data 8010 Punchcard Keyboard (NOS)
Replies: 21
Views: 3719

Generally that won't work because most hall effect sensors for keyboards utilize threshold detection inside the sensor rather than the MCU. So all you're getting is on/off signals.
by HaaTa
21 Mar 2018, 22:07
Forum: Keyboards
Topic: HaaTa's 2018 Matias force curves
Replies: 5
Views: 1296

These switches were provided to me by Jesse from keyboard.io, so he'll have more info than me. He also works fairly closely with Matias so I think he'll have the best analysis at this point (though I can tell you what's going on in the force curve). Basically, between the different versions there ha...
by HaaTa
08 Mar 2018, 09:53
Forum: Keyboards
Topic: Futaba MD, a few different color combinations
Replies: 29
Views: 2164

I think the contacts may not have been working, I'll see if I can remeasure it.

(the pins are hard to get a grip on with my minigrabbers)
by HaaTa
08 Mar 2018, 08:13
Forum: Keyboards
Topic: Futaba MD, a few different color combinations
Replies: 29
Views: 2164

These are all NOS.
by HaaTa
08 Mar 2018, 05:02
Forum: Keyboards
Topic: Futaba MD, a few different color combinations
Replies: 29
Views: 2164

Sorry for the delay, I measured these over a week ago, but life happened... (There are some missing, but I don't have the loose switches so I'll need to dig them out of a keyboard unless someone can send me loose versions) Futaba https://plot.ly/~haata/481.png https://plot.ly/~haata/479.png https://...
by HaaTa
14 Feb 2018, 18:35
Forum: Gallery
Topic: [Photos] Fujitsu FMV-KB611
Replies: 13
Views: 2939

I think that uses the 4th gen Fujitsu leaf spring switches, which have a single piece housing for the whole keyboard (like a model m) and uses a mylar sheet for contacts ( also like the model m).
by HaaTa
13 Feb 2018, 19:01
Forum: Gallery
Topic: SMK Cherry Mount White
Replies: 7
Views: 1418

I believe I have the yellow and blue in a keyboard somewhere (may take me a while to find them...).
by HaaTa
13 Feb 2018, 06:22
Forum: Gallery
Topic: SMK Cherry Mount White
Replies: 7
Views: 1418

SMK Cherry Mount White

by HaaTa
13 Feb 2018, 06:13
Forum: Gallery
Topic: Alps SKFF White
Replies: 2
Views: 648

Alps SKFF White

by HaaTa
10 Feb 2018, 23:41
Forum: Gallery
Topic: Tai-Hao APC Green
Replies: 5
Views: 959

I do have some force sensors that have a higher rating (not as precise though). The calibration takes quite a while so I'll probably need to hold off on that for the time being.
by HaaTa
10 Feb 2018, 23:07
Forum: Gallery
Topic: Tai-Hao APC Green
Replies: 5
Views: 959

Haha, the force gauge is safe up to 600 gf (and is critical around 1200 gf). So I wasn't super worried with this one, lol.
by HaaTa
10 Feb 2018, 20:10
Forum: Gallery
Topic: Alps SCKM Green
Replies: 3
Views: 846

Alps SCKM Green

by HaaTa
10 Feb 2018, 20:03
Forum: Gallery
Topic: Tai-Hao APC Green
Replies: 5
Views: 959

Tai-Hao APC Green

This switch is just funny. The peak force is just over 400 gf :lol:

Image

wiki/Tai-Hao_APC_series
by HaaTa
09 Feb 2018, 21:02
Forum: Gallery
Topic: Unknown USw LARB01
Replies: 4
Views: 937

Wiki Entry: wiki/USw_LARB01

Image
by HaaTa
09 Feb 2018, 20:53
Forum: Gallery
Topic: Unknown USw LARB01
Replies: 4
Views: 937

Unknown USw LARB01

At the request of Chyros, the next switch to measure is the USw LARB01.
(again, thanks Daniel Beardsmore, this one is also really interesting :mrgreen: ).

Image
by HaaTa
02 Feb 2018, 19:22
Forum: Gallery
Topic: ITT ETL18 Force Curve
Replies: 5
Views: 928

Yeah, it feels a lot heavier than it actually is. I think this may have to do with the amount of momentum your finger has when pressing a linear switch. For a linear switch your finger knows to keep pressing even harder to go down. But for a switch like this (as well as the later half of parabolic s...
by HaaTa
02 Feb 2018, 09:20
Forum: Gallery
Topic: ITT ETL18 Force Curve
Replies: 5
Views: 928

ITT ETL18 Force Curve

Thanks to Daniel Beardsmore for sending me a bunch of switches!

To start off, an "interesting" one: wiki/ITT_ETL18

Image

It feels like your flicking something when you press it. Quite smooth too.
by HaaTa
21 Dec 2017, 00:16
Forum: Gallery
Topic: Honeywell Microswitch 1KST3-T (Metal Keyswitches)
Replies: 8
Views: 1719

Sadly, mine arrived loose, in a box labelled "Gourmet Small Batch French Fries", lol. So I don't have any further docs.
by HaaTa
20 Dec 2017, 06:02
Forum: Gallery
Topic: Honeywell Microswitch 1KST3-T (Metal Keyswitches)
Replies: 8
Views: 1719

Honeywell Microswitch 1KST3-T (Metal Keyswitches)

Well, these are interesting. Cast metal (likely aluminium) keyswitches! They have small microswitches inside of them, along with rubber gaskets (probably ultra extreme environments). Going from the pins, likely hotswap as well. https://farm5.staticflickr.com/4599/25305994098_ed258a3656_h.jpg IMG_201...
by HaaTa
04 Sep 2017, 00:41
Forum: Keyboards
Topic: Are all magnetic valve switches analogue?
Replies: 7
Views: 1090

At least from my understanding, I'd say it's mostly On/Off. In theory, if you could ramp up/down the magnetic field as you pressed the slider in a similar range to the magnetic field generated by the pulse, you could measure the output current (or voltage). But this is pretty tricky (calibration nig...
by HaaTa
29 Aug 2017, 04:46
Forum: Off-topic
Topic: Bay Area Mechanical Keyboard Meetup 2017 - Saturday Nov 11, 2017@10AM
Replies: 3
Views: 1061

Bay Area Mechanical Keyboard Meetup 2017 - Saturday Nov 11, 2017@10AM

It's California Bay Area Meetup Time! This time, I've teamed up with /u/manofinterests, Andrew Lekashman of Input Club and /u/yuppie (of our wonderful sponsor company) to make the meetup just that much more awesome. Our host, the wonderful company, known to the world as Nest, has graciously allowed ...

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