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Digital Group HAM board?

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John Crane

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Feb 5, 2024, 11:00:50 PMFeb 5
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Though not technically CP/M; I recently acquired a HAM board for my Z-80
digital group system. Excellent condition, but I can't find any docs
for it. Can someone point me in the right direction?

Thanks,

-J

Dennis Boone

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Feb 6, 2024, 10:16:21 AMFeb 6
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> Though not technically CP/M; I recently acquired a HAM board for my Z-80
> digital group system. Excellent condition, but I can't find any docs
> for it. Can someone point me in the right direction?

Would be neat to see photos!

De

Dennis Boone

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Feb 6, 2024, 10:23:13 AMFeb 6
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> Though not technically CP/M; I recently acquired a HAM board for my Z-80
> digital group system. Excellent condition, but I can't find any docs
> for it. Can someone point me in the right direction?

Herb Johnson appears to have a paper manual:

https://www.retrotechnology.com/restore/digital_crompton.txt

De

John Crane

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Feb 6, 2024, 12:11:29 PMFeb 6
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Hard to tell if it's really a DG manual or something else.
Hard to tell much of anything on that site.
I do know other manufacturers were making Ham interface cards at the time.

I recall I did buy some manuals from Herb in the past (maybe late 20th
century) before I went all digital. Nice to see he's still around.

Overall, the DG system is progressing nicely.
I have the quad Phi-Deck, the Vortrax, and now the Ham card.
And the nice metal cases too, clean and unmarked.

-J

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