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  1. #1
    Join Date
    Jan 2008

    power supply test

    I did the power supply test for my 130 watt tube using the resistor I got for my 50 watt tube I am getting 40 milliamps on the meter is this a sign of a bad power supply

  2. #2
    Join Date
    Aug 2021

    Re: power supply test

    Just calculate P=U*I (Voltage on current).
    40mA - is a VERY GOOD.
    Actually, 40mA will kill your 130W CO2.
    30-35mA - maximum

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