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Thread: Ohio Scientific 560Z (PDP-8) Board Clone?

  1. #31
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    Just submitted the artwork to the PC board house! I'm ordering 25 bare boards. Looks like they'll be around $20 USD each + shipping.
    Check out The Glitch Works | My Retro Projects | Vintage Computer Services

    Still looking for a BYT-8, any condition.

  2. #32
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    Ordered a bunch of 9x12" bubble mailers and "DO NOT BEND" stickers today -- expecting the boards in by the end of next week!
    Check out The Glitch Works | My Retro Projects | Vintage Computer Services

    Still looking for a BYT-8, any condition.

  3. #33
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    They're here!









    Side-by-side with the original from which it was copied:



    Boards are decent quality. Not out of this world, but you sort of have to go with cheap suppliers to keep boards this large at a reasonable price. I'll send out preorder emails tonight. Bare boards are $25 USD each + shipping. Shipping in the US is $5 USD, I will ship overseas but I'll need your mailing address to do so. If you didn't preorder and/or you don't get a preorder response email from me in the next hour, please use the contact form to get in touch with me and place your order:

    https://services.theglitchworks.net/ng/messages/new
    Last edited by glitch; February 14th, 2017 at 10:23 AM.
    Check out The Glitch Works | My Retro Projects | Vintage Computer Services

    Still looking for a BYT-8, any condition.

  4. #34
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    Jan 2010
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    Looks like 8T95s for the parts kit are going to be easy -- one of my suppliers has 1800 of them in stock!
    Check out The Glitch Works | My Retro Projects | Vintage Computer Services

    Still looking for a BYT-8, any condition.

  5. #35
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    Jan 2010
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    Central VA
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    I put together a spreadsheet this morning while the test suite for $day_job is running. How's a $50 parts kit sound? That of course doesn't include a Z80 or IM-6100. It would include:

    - All TTL ICs
    - 8T26 and 8T95 bus drivers (I probably have enough 8T28s to sub if you use a positive data bus)
    - 4x Motorola MC6821 PIAs
    - Sockets for 8T26s, PIAs, and CPUs
    - 2x NOS Mallory TAS-M tantalums for main power bus decoupling
    - Handful of axial MLCC caps for bypass
    - Misc. resistors, capacitors, diodes
    - 8x NOS Molex KK-156 sockets for MOS and SYS bus connections

    That's with US-made machine pin sockets, I can get them from China for significantly less, but it might knock $10 off the kit price. Add $5 if you need a Z80. I haven't gotten to the point of testing my handful of IM-6100s -- have to finish the 560Z build first
    Check out The Glitch Works | My Retro Projects | Vintage Computer Services

    Still looking for a BYT-8, any condition.

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