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.
KIM1 MOD a replica KIM-1.
Small enough to take with you traveling, battery powered and thanks to the FRAM the contents of RAM are kept when powered off.
The FM1808 used is a non-volatile RAM (32Kx8), used here for ROM and RAM.
This design appeared in the Google group PAL 6502 computer devoted to the PAL-1 and PAL-1 (and the KIM-1 of course). The design is by Voyageur.
Read all about the KIM1Mod here :http://retro.hansotten.nl/6502-sbc/kim-1-manuals-and-software/my-kim-1-family/kim-replicas-and-clones/kim-1-portable-version-made-by-voyageur6502/
PicoSYM, a SYM-1 emulator on a Raspberry Pico
Emulation of a Synertek Sym-1 on a Raspberry Pi Pico 1 (W).
By andysa on the emulation forum on 6502.org
Read about it here: http://retro.hansotten.nl/6502-sbc/synertek-sym-ktm/sym-1/picosym-a-sym-1-emulator-on-a-raspberry-pico/
PicoSYM emulates a SYM-1 with the Supermon V1.1 Monitor, Basic, RAE Assembler & Editor and 1541DOS at the typical addresses.
The 1541DOS implementation uses "Port A" of an emulated VIA to connect to SD2IEC style floppy disk emulator modules.
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50 years of KIM-1: KIM Clones
Vince Briel was the first to design and sell a KIM-1 clone, the Micro-KIM.
Essential was the replacement of the 6530 RRIOT with a 6532 RIOT and an external ROM. The idea came from Ruud Baltissen.
The PAL-1 and PAL-2 are still available as kit. The design files for the Micro-KIM are on github,
In the photo top row: Briel MicroKIM, Corsham KIM Clone and PAL-2.
Bottom row: PAL-1 , Corsham breadboard.
Not only Edison, but the Solo OS with Concurrent Pascal by Per Brinch Hansen, can run in simh:
http://pascal.hansotten.com/2026/01/13/solo-operating-system-running-in-simh/
