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    VERAULT

    Need Schematics on Apple Color composite monitors

    So I purchased some DOA Apple Color monitors that I wanted to try and repair since I only have monochrome composite monitors. The two models are A2M6020 and A2M2056, both manufactured on 1986. Does...

    VERAULT Today, 12:34 PM Go to last post
    firedome

    Rod Smallwood's PDP-8 panel reproductions?

    Are these still available? Have a PDP-8e coming but like most the panel no doubt suffers somewhat from ageing. I'd be interested to know folk's experience with the repro panels, particularly as to...

    firedome Today, 12:33 PM Go to last post
    daver2

    That sounds better... I suspect your...

    That sounds better...

    I suspect your multimeter is reading high...

    You should be able to now look at the video signal at the 'bar' end of diode D201. Set the oscilloscope for 1Volt/division....

    daver2 Today, 12:12 PM Go to last post
    Al Kossow

    The part numbers on the toshiba gate arrays are...

    The part numbers on the toshiba gate arrays are completely different from the two on the 3270 display board (1503193/94)
    It is an IBM board by the 6xxxxx part number. Nothing obvious jumped out in a...

    Al Kossow Today, 12:09 PM Go to last post
    dhoelzer

    Some weeks ago I made the comment that I find it...

    Some weeks ago I made the comment that I find it much easier to design circuits, event fairly complex circuits, than I do to troubleshoot an existing circuit, especially where there are multiple...

    dhoelzer Today, 12:09 PM Go to last post