Mastodawn

@bigby Looks familiar. My ralph02 KIM-1 replica has one of these. Description also on my website,
No microswitches indeed. Looks nice too. The width of the 'Eduardo' variant is more like the original.

Hans Otten 1d ago

A spare KIM-1 keypad is even rarer than a KIM-1 itself. With this guide you can build a reasonable replica of the keypad.

Thanks to the work of Eduardo Casino (the PCB) and Pete (peo2000 on forum64.org) I have published a DIY guide for a good looking KIM-1 keypad replica.

http://retro.hansotten.nl/6502-sbc/kim-1-manuals-and-software/my-kim-1-family/kim-replicas-and-clones/diy-kim-1-keypad/

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Hans Otten 2d ago

@PaulaMaddox looks like a healthy disk.
The unsafe shutdown value is high ..
That does not hurt the physical disk, but may lead to logical disk errors.

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Hans Otten 2d ago

@PaulaMaddox I/O errors, is your disk dying?
What does SMART info tell you?

Anyway, is your backup uptodate? You may need it.

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Hans Otten 4d ago

@biglesp That is a great opportunity! Wish you well.

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Hans Otten 6d ago

https://www.rru-products.com/

RRU Products – Innovative Design, Technology & Engineering

RRU Products develops innovative and functional products combining 3D printing, electronics, and engineering – designed and built in the Netherlands.

RRU-Products

Hans Otten 6d ago

In 2025 Franz Achatz revived the A-ONE Apple 1 replica. The excellent design is refreshed, a new family member added: the A-ONE PLUS.
I now have the 2025 standard board, the 2025 PLUS and the 2006 EXTENDED. With the prototype boards with and without breadboard and the 2025 cassette interface.
http://retro.hansotten.nl/6502-sbc/apple-1/a-one/

Hans Otten Mar 11

AkaSci 🛰️Mar 10

RIP Sir Charles Antony Richard Hoare (11 January 1934 – 5 March 2026), also known as C. A. R. Hoare, pioneering computer scientist.

His seminal contributions include -
Quicksort
Quickselect
Hoare logic
Null reference
Communicating sequential processes
Structured programming
ALGOL

https://blog.computationalcomplexity.org/2026/03/tony-hoare-1934-2026.html
https://amturing.acm.org/award_winners/hoare_4622167.cfm
https://en.wikipedia.org/wiki/Tony_Hoare
1/n

Hans Otten Feb 18

New project, cleanup and restore this KIM-1 . Poor thing still works but had a rough life. KIM-1 collection complete now ..

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Hans Otten Feb 18

@afachat these manuals taught me so much about the 6502 and 65xx !