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Hot Cathode vs. Cold Cathode tubes..

Discussion in 'Electronic Repair' started by Free Spirit, Oct 8, 2003.

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  1. Free Spirit

    Free Spirit Guest

    I've got an old LCD monitor made for IBM that uses HCF backlight
    tubes, I cant find replacements for them anywhere..
    From my research, you cant just drop in CCFL's in place because
    the startup voltages and run currents are different.

    What to do??

    Anyone know of source for 360mm HCFLs? the OD of the tube is 5mm,
    a bit thicker than the usial 3mm CCFL tube.
     
  2. Andre

    Andre Guest

    There are small HV ceramic capacitors on the secondary of the
    transformer that help to regulate the current through the tubes. Might
    be possible to change these and thereby get around the problem (at
    least in principle) .

    -A
     
  3. Leeper

    Leeper Guest

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