deskthority

I have a new Model F which is demonstrating an intermittent fault in which a whole bunch of keys stop working. Here is the output of the VIal Key Matrix Test:
Screenshot From 2026-02-26 14-55-29.png
This first happened a few days ago. At the time I didn't have time to do anything about it, so I unplugged

Thanks, I got some items in my ebay cart now. Some of those will make it much easier, for sure. Definitely going screw mod next time. T6s in my McMaster cart for the next time I place an order with them, too.

shoot me a text 775 461 2433. I've got one in a decent condition, ready to go.

No interest my friends?

I wish there was a simple way to just purchase a card like this.

Incompétence Automatisée?

Yes, heavier flippers will have higher momentum (even in friction less environment).
This higher momentum should displace PCB more (higher amplitude) but more slowly (lower frequency). That would be true if the flipper speed at the PCB impact corresponds to the resonant frequency of the PCB. Which is

In the off-chance that anyone sees this... I'm doing some research on the FK-555 -> Omnikey -> Avant lineage and the many posts about them here has been invaluable so far. Polecat, would you consider sharing your database of documented units? I can also add in the details from my 4 Omnikeys and

Other than a handful of 1970s-'80s IBM typewriters, I've NEVER found a good vintage keyboard at a thrift store (I live in one of the biggest metro areas in the US). So, the vintage keyboards (Model Fs, a 1985 Model M, other Model Ms, Cherry stuff) in my collection I've sourced either on eBay or through

Hey there, I'm wiriting this on a German ISO Keycat :)
Did someone manage to map the three C-Buttons on the upper left? Got a tinkerBOY DIN5 to USB adapter with Vial but these three buttons are not recognized.

Here is a great writeup on the history of the Model F and Model M, as well as a review of the new F122: https://mateweb.cyber-mates.net/engineerm/archive/keyboard/f122-en.html
This is by the same user that created the new template for the transparent relegendable keys.

Getting rather excited..!

The big problem, really, is that you'll realise 104 keys is good, but 122 keys are better!

Looking for an Ortek MCK-142 in working condition. Thanks

Hypothesis
I don't see it documented anywhere, but the shape of the actuator leaf is different in newer Alps. This is what is causing newer generations of alps switches to feel less refined. Before I go into more detail here, first some background:
Background
There are numerous well documented changes

I will probably try washers if I can find some small enough. Thanks for the tip!

Update: the M122 arrived today.
(Super big versions of the above photos: internals ; label .)
Looks like the date of manufacture was around September 25, 1985. Board needs a good cleaning and a screw/bolt mod, but overall it's a lot cleaner than I expected.
I don't have a converter, but I'll

Messaged!

Attempted a repair on a cracked barrel plate with ABS glue and it worked out better than I thought it would.
Put it on heavy with a Q-tip and let it cure for a week before I did a screw mod. I had a major break in the center
and hair line cracks running down each channel. This barrel plate is rare because

https://imgur.com/a/nixdorf-softkeys-Cm8HUhq
Switch bottoms have patina
Every switch was cleaned in the ultrasonic without mixing parts
1100 eur, eu proxy only
Can include 2x G80-0577 boards as bottom housing donors