Philippe Roca sent me photos and Gerber PCB files from his Junior system.
From scratch, reading the original Elektor articles, he designed and built a complete Junior system.
Faithfull to the original and with even the ‘problem’ parts such as the 2708 EPROM on the main PCB and the 82S33 PROM on the interface card. For those devices he built programmers!
Still working on building and testing (January 2021), here photos and Gerbers of finished and working cards.
Junior
Interface card
Programmers
PCB’s
Gerbers download
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Junior PCB gerber |
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Display print gerber |
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Power supply gerber |
See also:
History of the TIM in the Jolt
Jolt software
On this page software for the TIM is described.
- DEMON
- Tiny Basic ad Resident Assembler Program
- Focal-65 V3D
...
Images of the Jolt
Above photos by The National Museum of American History.
Photos from https://vinta...
Jolt with a 74154 decoder
The early Jolts were equipped with a 74154 decoder for the glue logic instead of the 74LS00/04/27 of the later and more ...