Loudest EVER Model F XT Proof of Concept with Xwhatsit Controller

orihalcon

29 Jul 2018, 00:16

I've always thought it should be possible to install an Xwhatsit controller into an IBM Model F XT if the original controller was cut off and directly wired to the existing traces. This is the proof of concept and it works great! To make the video more interesting, I hooked up an old solenoid driven bell from an IBM typewriter that I had laying around. Makes for the loudest USB powered keyboard I've ever experienced!

Story behind this one is that I came across some Model F XT's that had some sort of third-party-modification to the original controllers and they do not work with modern converters because of this. It was either junk the PCB or test out my old theory. Basically just cut the original controller off with a Dremel. Upside down mounting of the Xwhatsit made more sense since this was the orientation of the traces and it happens to divert the USB cable in the direction where there is more free space in the case anyway. The assembly does fit in the case just fine as pictured without any issues, just couldn't fit the bell in there!

Close up of Xwhatsit for wiring purposes should you want to try this at home:
IMG_3089.JPG
IMG_3089.JPG (2.94 MiB) Viewed 753 times

User avatar
PlacaFromHell

29 Jul 2018, 00:41

Amazing! How did you performed such a clean cut over the areas with the copper mask?

xxhellfirexx

29 Jul 2018, 00:47

How does it sound when you hold a key or a bunch of keys down? Does it sound like an old phone?

User avatar
depletedvespene

29 Jul 2018, 02:56

orihalcon wrote: The assembly does fit in the case just fine as pictured without any issues, just couldn't fit the bell in there!
GET. A SMALLER. BELL. NOW!

I absolutely love this. :mrgreen: Would the pictured bell fit on an F122, though?

User avatar
green-squid

29 Jul 2018, 14:46

Now imagine using a big School bell! :mrgreen:
That would have to run on 120V though

tigpha

29 Jul 2018, 19:23

Hilarious! Love it. Just the thing to use in a open plan office full of folks on the phone :-) Revenge!

User avatar
zrrion

29 Jul 2018, 19:58

This is something I've wanted to try myself. It turned out incredible BTW!

User avatar
digital_matthew

30 Jul 2018, 22:58

I'd love a separate bell solenoid to go off whenever I hit the Enter key, like an old-school typewriter.

User avatar
depletedvespene

30 Jul 2018, 23:22

digital_matthew wrote: I'd love a separate bell solenoid to go off whenever I hit the Enter key, like an old-school typewriter.
How... how did I not think of this before? Matthew, this is BRILLIANT. :D

orihalcon

19 Mar 2019, 03:12

PlacaFromHell wrote:
29 Jul 2018, 00:41
Amazing! How did you performed such a clean cut over the areas with the copper mask?
Just used a Dremel with a cutting wheel attachment actually. I think you could probably also use a bench grinder, but grinding the entire controller off would probably make a lot more potentially harmful dust ;)

Post Reply

Return to “Gallery”