Electronics Cold cathodes requirements?

Discussion in 'Modding' started by Prometheus, 1 Jan 2005.

  1. Prometheus

    Prometheus Minimodder

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    How much current does the average 30cm coldcathode use?
    I tried using the search but couldn't find anything relevant

    Thanks

    Happy New year :thumb:
     
    Prometheus, 1 Jan 2005
    #1
  2. Turbokeu

    Turbokeu Minimodder

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    Last time I measured mines they were about 375mA on the 12VDC side.
    Could vary a little depending on brand and model...

    CD :)
     
    Turbokeu, 2 Jan 2005
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  3. cpemma

    cpemma Ecky thump

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    I'd have put it a fair bit higher (on my Maplin supplied one), not by measurement but the fact a 2N2222A got stinking hot running it on a throbber circuit.

    However, Sunbeam, on their CCFL page, say their 30cm tube uses 5mA at 620/680V, which after allowing for inverter inefficiency is close to Turbokeu's figure.
     
    cpemma, 2 Jan 2005
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