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Thread: Digital Group Video Card Availability?

  1. Default Reproduction Digital Group Video Cards on order

    I finished the reproduction Digital Group Video Card PCB layout a few months ago. This summer, I've been busy with other projects, but I've finally ordered a batch of PCBs. I should have them in hand in another week or so. I have all components in hand or on order. I've found the 5 MhZ crystal is not exactly common. I currently have a few on backorder at Mouser. Expected ship date is early December, so I may not be able to fully check out this card for a while.

    I don't expect the software to be very difficult, as the hardware interface is very basic. It looks you need to write out the whole page of display data, if you want to change any characters or do anything like scrolling. The easiest thing might be to keep a mirror of video memory in main memory and write out the whole thing anytime that there is a change.

    Stay tuned, keep an eye on my blog for updates: www.willegal.net/blog

    regards,
    Mike Willegal

  2. #12
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  3. #13
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    Default

    Mike,

    I'd be interesred in a pcb.

    Len

    Quote Originally Posted by mwillegal View Post
    I finished the reproduction Digital Group Video Card PCB layout a few months ago. This summer, I've been busy with other projects, but I've finally ordered a batch of PCBs. I should have them in hand in another week or so. I have all components in hand or on order. I've found the 5 MhZ crystal is not exactly common. I currently have a few on backorder at Mouser. Expected ship date is early December, so I may not be able to fully check out this card for a while.

    I don't expect the software to be very difficult, as the hardware interface is very basic. It looks you need to write out the whole page of display data, if you want to change any characters or do anything like scrolling. The easiest thing might be to keep a mirror of video memory in main memory and write out the whole thing anytime that there is a change.

    Stay tuned, keep an eye on my blog for updates: www.willegal.net/blog

    regards,
    Mike Willegal
    Spread the joy of Vintage Addiction

    -->www.chronworks.com/<--->www.i8008.net/<--

  4. Default

    I have one of my reproduction Digital Group Video cards working and am making the rest of the batch available for $50 each (domestic USA only, international shipping rates have gone out of sight and it always was a pain to deal with customs). See my blog for the latest information on this board.

    Note that I don't expect I'll be making any more runs of these cards after this batch of 20.

    www.willegal.net/blog

    regards,
    Mike Willegal

  5. #15
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    Hi Mike,

    Is there a final schematic, bom, and layout available?

    Len
    Spread the joy of Vintage Addiction

    -->www.chronworks.com/<--->www.i8008.net/<--

  6. Default

    documentation is available, though currently not in one place. Once I finish my enclosure, I'm going to put together everything I have into one doc.

    the bom and layout from my blog is accurate.
    schematics can be found online: https://bytecollector.com/archive/ma.../dg_packet.pdf

    For now, I highly recommend reviewing my blog posts on the topic, though the board works as designed, building, powering and interfacing it required a bit of creativity.

    regards,
    Mike Willegal

    Quote Originally Posted by 8008guy View Post

    Is there a final schematic, bom, and layout available?

    Len

  7. #17
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    Perfect, thanks Mike.

    Looking forward to the board.
    Spread the joy of Vintage Addiction

    -->www.chronworks.com/<--->www.i8008.net/<--

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