swartz_de

@swartz
33 Followers
74 Following
123 Posts
Ur-Pälzer, Database monkey @ BASF. Father of 4 Kids. Born in Santa Rosa, California. Went on a vacation to Germany in '82 that never ended. I tend to post stuff about old mobile computing tech, although not limited to that subject. Opinions are my own.
Threadshttps://threads.net/@swartz_de
Old Byteshttps://oldbytes.space/@swartz
Show threadswartz_deJan 23
@VintageProject Thank you for sharing that channel, my friend. An absolute gem!
swartz_deJan 23
Show threadThilo, EE 🤘🏼🇪🇺⚛🎗️Jan 22

And while you're reading:
Pay a visit to this guy in Ireland.
I feel like he's inspiring a lot of folk to actually repair stuff.

https://www.youtube.com/watch?v=GlxHa1JKbdU

#RightToRepair

Repairing an Old Makita HR2020 drill with a burnt out motor, using old stock spare parts.

YouTube
Show threadswartz_deJul 19, 2025
@VintageProject My friend, you wouldn't believe just how well I understand that. 😄
Show threadswartz_deJul 19, 2025
@VintageProject Glad to see you back! You had me a bit worried, mate.
swartz_deJun 10, 2025
Show threadAlice Averlong🏳️‍⚧️Jun 7, 2025
@ann3nova I only use windows 11 if there's a 3. before the 11
Show threadswartz_deJun 9, 2025
@ckape It predates Sharp's first 4-bit Pocket Computer CMOS CPU by a year, so I would have guessed it uses a Z80 compatible (Probably Sharp's own LH-0080) like their MZ-80K model, or the 4-bit Fujitsu MB8843 they used in the MZ-40K computer kit. The search for which CPU they actually used in the Ratecaputer is the reason I came across your post. 😅
swartz_deApr 23, 2025
Show threadThilo, EE 🤘🏼🇪🇺⚛🎗️Apr 23, 2025

Interesting.
This one (https://typewriterdatabase.com/1954-groma-modell-n.17638.typewriter) is pretty close.
1950s Groma Modell N.

And this one (https://typewriterdatabase.com/1956-groma-modell-n.4487.typewriter) is an even closer fit.

Also found a serial in mine as 335852, which perfectly fits the two 1956 specimen.
1956 Groma Model N it is, then.

Awesome!

#Typewriter

1954 Groma Modell N on the Typewriter Database

From the Virtual Typewriter Collection of Martin Wohlert: 1954 Groma Modell N | It's in a rare color, something like...

Typewriter Database
swartz_deFeb 1, 2025
Show threadThilo, EE 🤘🏼🇪🇺⚛🎗️Feb 1, 2025
Yeah, okay. Didn't want to wait. I needed to know.
And we are back, now with proper backlight!
Sweet!
Later, the BIOS battery will be swapped, and the internal battery refitted.
Fun fact: With the new keyboard, the TrackPoint is way less nippy and actually works great now. I didn't expect that!
swartz_deFeb 1, 2025
Thilo, EE 🤘🏼🇪🇺⚛🎗️Feb 1, 2025
Saturday morning shenanigans:
As I decided to reactivate my spare parts ThinkPad x250 and use it for playing with Linux, it deserves a new keyboard and BIOS battery.
Keyboard is in, but I'm still waiting for the battery.
With the x250, you really have to dig deep. Fortunately, ThinkPads are rather serviceable, so it's no big deal once you gave it a try once.
swartz_deJan 21, 2025
Show threadThilo, EE 🤘🏼🇪🇺⚛🎗️Jan 21, 2025
@swartz Something like this might be a starting point:
https://github.com/f1ac0/PCMCIA-SRAM
GitHub - f1ac0/PCMCIA-SRAM: 4MB PCMCIA SRAM for Amiga 600 and 1200

4MB PCMCIA SRAM for Amiga 600 and 1200 . Contribute to f1ac0/PCMCIA-SRAM development by creating an account on GitHub.

GitHub