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    danielbooneamerica

    CRTs mounting copper band pitting

    I have made an observation on several CRTs stored in non climate controlled conditions for 30 years that the copper band wrapped around display end gets badly pitted and in some cases eaten through. ...

    danielbooneamerica Today, 02:46 PM Go to last post
    retrogear

    which caps ref# are you talking about? If they...

    which caps ref# are you talking about? If they are in parallel or series with the flyback or yoke windings then they are tuning caps and you don't want to change capacitance value.
    If the old caps...

    retrogear Today, 02:30 PM Go to last post
    vol.2

    So, I replaced Q402, and it didn't make too much...

    So, I replaced Q402, and it didn't make too much of an impact on the ringing, but it made an appreciable difference on the waveform coming out of the Horizontal on the IC. It you see here now, it's...

    vol.2 Today, 02:23 PM Go to last post
    TheDrip

    I have run memtest a number of times while the...

    I have run memtest a number of times while the screen was fine and while malfunctioning, it's good.

    The behavior doesn't seem to be in the pixel data, but rather the vertical hold/sync

    It...

    TheDrip Today, 01:50 PM Go to last post
    daver2

    I suppose this is one reason why I like...

    I suppose this is one reason why I like developing emulators is to get to play with machines I may never own or (if I do) it will be probably well into the future.

    It doesn’t give you the same...

    daver2 Today, 01:48 PM Go to last post