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Recent content by candrews

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    The Nibbler computer

    Thanks for finding the archives of those images
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    The Nibbler computer

    What ever happened to this board? The link in your original post is broken, but hopefully the board remains intact. craig
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    SEE 185 SBC 8085 Picoprocessor- anyone know this board?

    I see this has fulfilled it's residency time on your shelf and is back up on ebay. Did you get it going or give it up?
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    Ssm vb1b sn 1133

    Sorry, missed the PM but saw this. Replied to PM, yes I have two generators.
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    California Intel iPDS portable CP/M-80 computer - ICE and EPROM programmer

    It looks like I had actually started a iSBX-251 bubble board sometime before I made the one for the SBC-85 platform. I think i decided to make the SBC-85 version rather than the iSBX version. But as you pointed out they are both nominally the same as the bubble engineering kit.
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    California Intel iPDS portable CP/M-80 computer - ICE and EPROM programmer

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    California Intel iPDS portable CP/M-80 computer - ICE and EPROM programmer

    Yes, the SBX module adapter board. I have schematics, I just need to get the physical dimensions to reproduce. Yes, I have done reproduction boards before. Thanks Craig
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    California Intel iPDS portable CP/M-80 computer - ICE and EPROM programmer

    Any chance I could borrow the SBX expansion board to make a reproduction version?
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    Ssm vb1b sn 1133

    There are two quick tests you can perform without special software--- 1) write to the video memory and see if you can read the same value back out. 2) fill the video memory with an ascii character. e.g., 0x31 and the whole screen should fill with 1. if in character mode, write 0xB1 and it...
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    Ssm vb1b sn 1133

    I am sending Herb an email for something else today, so I will ask about this manual also.
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    Ssm vb1b sn 1133

    I have some character generators available.
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    Ssm vb1b sn 1133

    If anyone has one of these to sell, I would like to buy and take a crack at documenting it.
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    Ssm vb1b sn 1133

    Very good. When you get back to this project, let me know. Also, I presume you checked with Herb Johnson to see if he has any VB1 documentation?
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    Ssm vb1b sn 1133

    I see. The layout was your drawing. I missed that. do you have pictures or scans of the front/back before building? If they were trying to minimize changes, maybe it will be easier to compare to the VB1B and find the differences rather than starting from scratch. regards craig
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    Ssm vb1b sn 1133

    Were you able to get the full user's manual for the VB1(A)? or just these two pages? I have just finished resurrecting a VB1C and VB1B so I am now really curious about the original VB1A -Craig
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