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  1. M

    SDS Z80 Starter Kit. Zbug ROM

    I have just acquired SDS Z80 Starter. And I'm in the need for the Zbug Monitor ROM. Would anyone have a copy of this in hex format.? Regards Vernon
  2. M

    Apple II Power Supply. Problem (NON-ASTEC)

    I have a Apple II that I just got I think it's a Rev 1 Motherboard. I had a look under the 6502 as it's got 820-0001-01. ? and the power supply is a silver A2M0023-01027 when I power it up it has a ticking and the voltage on the 5 volt line seems to go for 1.75 volt up to 5 volt. Than after a...
  3. M

    TRS-80 Model 1 Repair Help

    Hi there. I have brought myself a Model 1 26-1001 looks like its been upgraded to 16k (4116 ic's) and Level II its a 2 ROM set on the pcb board.? after making a power supply i plugged it in and it started up. I then had a video sync issue which i found a you tube fix for. thank you. It now has...
  4. M

    Has anyone got info on the SGS Z80A Nano Computer 1979

    Hi, I would like to no if there is a way to connect a serial terminal to a pc with this. I t does have serial TTL output. And help or comments would be appreciated. I have a photo http://203.118.155.29/sgsnzb80/NZB80.html Vernon
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