deskthority

Anyone know the key switch type? Looks like Alps but not marked. They are [wiki]four-tab clone[/wiki] switches, and the mould cavity numbers are Himake-like. The cheaper types (alps.tw Type T5 and T8) have small notches in the slider aperture, which if present in yours would not be visible from tha...

lucar wrote: ↑ Which is the standard You use here? Imageur?

I can edit and reload everything..

Luca

Me? If it's an informal image, I attach it directly to the forum post. Proper images go on the wiki of course.

Somewhere there was a page with them on, but it's not on the wiki now. There's a topic about them here, but it's not getting very far:

https://geekhack.org/index.php?topic=94367.0

They seem to be pretty rare!

Based on literature and PCB codes, we have so far (underlined = confirmed from literature): Metal contact types: KAM Type: standard mechanical type 1 (possibly momentary SPST only) KCT Type: standard mechanical type 2, tactile (possibly momentary SPST only) KDM Type: simplified (which are linear) KL...

A few observations: In snuci's, most of his switches are sink pulse (—B), which makes me wonder if they do not support auto-repeat. The blank key, BRK, RPT and shift are all sink level (—A) suggesting that they can be detected as being held down. Instead of having key behaviour set in the controller...

Curious — that's a Matsushita PCB, but the date label is the style Mitsumi use. (Those are not Mitsumi PCBs, though.) Someone does have or did have a PCB bearing the code I want, but that exact piece of the PCB was snapped off! So we know that one day someone else will find the same typewriter with ...

I realise that I'm supposed to be documenting this on the wiki but … There are two things I should note: Detail There's a general list of things that are worth covering, of which various items (even the blatantly obvious ones) often get missed: top, bottom, the label on the back, each switch type us...

A number of Mitsumi keyboard/switch series were documented in the 1998 catalogue, the relevant pages of which I've recovered from the Wayback Machine. These imply that the keyboard and switches shared the same series, just as with Micro Switch. It also implies that the model numbers on the PCB in th...

I've read that these scissor switch caps can be difficult to put back on without damaging the switch. Any truth to this, or suggestions from those of you who know how to take these things apart? For me, I find that keycaps generally just pull off with a keycap puller, and snap back on without bothe...

Update for one of the typewriter keyboards yesterday.. The linear switch I couldn't ID seems like it could be https://deskthority.net/wiki/Mitsumi_simplified . I removed a PCB that was obstructing the view of the back of the PCB that has all the switches soldered to it. Underneath that is a Mitsumi...

What became of the PCB? I'm just wondering if it has the K xx switch and series name written on it. I'm doubtful as that doesn't look like a Mitsumi PCB (theirs tended to use brown substrate, not cream), but it just might! (Mitsumi keyboard and switch model numbers are in the form K xx - yyyyy , whe...

What I noticed about the C64, is that somewhere around the C64C coming out, the Shift Lock switched from the old chunky Mitsumi switches with a PCB instead of solder terminals, to a keyboard switch, which makes me wonder if it's possible to roughly date the introduction of Mitsumi standard mechanical.

Hey Guys, I just stumbled on this typewriter today at work.Would anyone know what type of switch it uses? It feels very linear. I know it is a Nakajima AE830 typewriter. It's interesting that there are springs under each keycap. [wiki]Mitsumi KKR Type[/wiki] or [wiki]Mitsumi KPR Type[/wiki], depend...

M9 has 4.2 mm travel according to the 1982 Cherry catalogue.

Oh, silly me, I didn't spot the PCB photos. Definitely not SMK J-M0404 series "vintage linear". Observe that the solder terminals are solid cylindrical, colourless, and that the mounting plate holes are large and circular. The only known series this matches are Futaba MD and MR; Futaba ML and Omron ...

I did wonder about that when I first saw it. Also note that the slider is black. Since you queried it, I went and checked what I thought it looked more like: http://mousefan.telcontar.net/image/micro.htm It's Micro Switch SD Series, slot mount. The keycap is also a Honeywell type, just as in MouseFa...

OK, this is weird …

The "Apple II Switchable Keyboard" used Alps KBB switches : http://apple2online.com/web_documents/A ... 201981.pdf pp. 340–342

I wonder if that is a mistake, as Alps (S)KBB does not make sense.

Too bad on the price, because what we need to find is a fat Alps keyboard where Alps made the PCB, so that we can read off the 12K code (assuming it's old enough to be 12K and not 56AAA, i.e. early to mid 80s) and determine what series family it falls under.

That's the one that I was trying out in the past, that just used extra wheel notch events. I don't know what IntelliPoint did, but it didn't use wheel notches, and never conflicted with programs that hard-code that.

For years, I've been using Microsoft mice, and at home I also used IntelliPoint for its wheel scrolling acceleration. Years ago, due to a bug in IntelliPoint, I tried to find a replacement wheel scrolling accelerator for Windows. Everything I found worked by duplicating wheel events, and to make thi...

I guess the 6312 in the serial number kind of gives that away …

Weird ... that is definitely Acer, not a clone. Curious though, I didn't realise there was a KB-101 model with Acer switches!

"That Hans that do dishes, can be soft as Gervais …"

I still have intact paint on the keycaps of my backlit Poker II I've had for over four years — I guess I am just lucky.

Picture 1: Chicony, judging by the LED labels, so it will be rubber dome (it's not one of their known mechanical types) Picture 2, bottom left: going by the LED label, Acer KB-102A or 6012, meaning that it's probably blue or white Alps (the picture on the wiki of the 6311 keyboards with that case ha...

kailh wrote: ↑

webwit wrote: ↑Great idea to use the horizontal space. So, do you have any of these for us to test? :mrgreen:

samples?

This is one switch type where samples would be worthless to me, as I could never do them justice with my photography!

The Filco is so shit for this. The UV coating on their caps is like the Juicy Fruit chewing gum -- great while it lasts, which happens to be about 2 minutes. Has something changed? I've had an original Majestouch since 2010 and the lettering is all perfectly intact. I know it's owner-dependent, but...

I recently got a mitsumi (KR-E99AC) with the same kind of pencil tray and LED sticker, only with big-ass Enter instead of ISO. I originally identified it based on a ¿Geekhack? post. It's linear foam&foil. I'm guessing that you have KKR-E99AC which is [wiki]Mitsumi KKR Type[/wiki], a Mitsumi "hybrid...

[wiki]Cherry MY[/wiki], type 3 is pretty much guaranteed for a keyboard as recent as that

Just "KR"? That should be three letters long.

davkol wrote: ↑Mitsumi foam&foil, actually, I believe.

What is that?

As for the Amstrad keyboard, it would be [wiki]Matsushita prong over membrane[/wiki] in which case (off-hand I don't recall if I ever saw what was inside that model of keyboard).