PAL-1 extensions

Motherboard 6 slot, 32K RAM , second 6532 board, now on Tindie for the PAL-1 (and Micro-KIM)

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NOP testers

I built two NOP testers, simple standalone devices to do a simple sanity check test if this CPU is at least doing something that can be expected. Not a thorough test of speed, instructions, all address lines or datalines or control lines. 

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CM630P 6502 clone

CM603P, a 6502 by MICRO ELEKTRONIKA BULGARIA. Used in Apple II clones like Pravetz-82 and IMKO-1 and Oric Atmos clone Pravetz-8D. Not an official 6502 licensed CPU. Pinc compatible, can be used in 6502 systems without issues.

Added to my 65XX IC collection.

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VDU card for Junior with OS65D

Philippe Roehr has remade a VDU PCB as featured in the Elektor Junior articles and put it to work with his OS65D system.

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KIM-1 clones and replica’s

The KIM-1. my first computer. Still have it, and it is still operational.

But I fear to use it for experiments and daily use, it is too valuable for me.

So I invested in KIM-1 clones and replica’s:
– Micro-KIM by Vince Briel
– KIM Clone by Bob Applegate, Corsham Technologies
– MOS KIM-1 Reproduction by Dave Williams
– KIM Uno by Oscar Vermeulen

Each has it advantages. And not all are still for sale.
Corsham is till in business and has an awful KIM Clone, with motherboard, I/O card, experimenters board and SD file system. A real enhanced KIM-1 on real KIM-1 hardware.
The KIM Uno is also available, affordable,now an emulator on an Arduino, soon on ESP32. Fun to have a KIM-1 look and feel.

All are documented on the KIM-1 replica’s and clone page.
KIM replica’s and clones



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Apple 1 Replica’s

I have two Apple 1 Replica’s, the Vince Briel Replica 1 SE and the Achatz A-ONE.
Both have a 6502 and a 6821 and the original software. Video generation sid one in a affordable modern way, so not real clones.

Fun computers to work with, the first ‘personal computer’ in a very primitive format!

Pages with information on teh Apple 1 and these Replica’s

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Another Junior build by Philippe Roca

Another Junior build! By philippe Roca. Faithful reproductions, including EPROM 2708 and PROM 82S33 programmers.

Photos and gerbers of some PCB. Work in progress, I hope to see more photos and Gerbers!

Build an Elektor Junior

Page on building now an Elektor Junior.
Two designs complete with PCB design (Bram Prosman), reports of a complete build ( Philippe Roehr, Philippe Roca).

 

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Lab-Volt manual scan

Thanks to John at 6502.org the scan of this book is available, now stored on archive.org due to size.
See also the Lab-Volt page

The description of the trainer is in the book
Microprocessor Concepts and Applications
Publisher: Lab-Volt
Download here for archive.org
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KB9 and OS65Dv3.3 Junior software