John Bell Engineering was a small firm producing microprocessor many boards between 1980 and 1990.
The early boards were 6502 and Z80 SBC’s, later boards were for the Apple II, and the last ones for the IBM PC bus.
I present here, what I have found, of John Bell 6502, Z80 and Apple ][ boards.
- John Bell PN 80-153
- John Bell PN 81-260
- John Bell PN 82-300
- John Bell PN 80-Z80
- John Bell Apple 6522 card
- John Bell Apple 16 bit A/D
- John Bell Apple Cards
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John Bell catalog 1984 |
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John Bell catalog 1988 |


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 ...




