EKCO meter survey RADIAC NO.2 roentgen meter

Discussion in 'General Electronics Chat' started by pvb, Mar 25, 2013.

  1. pvb

    Thread Starter New Member

    Mar 25, 2013
    1
    0
    I have a simple question but finding the answer is allot harder than I thought.

    I have a EKCO meter survey RADIAC NO.2 roentgen meter: link
    with this manual: link

    But mine is missing the 30v / 9v battery holder... Does somebody know what the polarity of this battery holders 3 pins are?

    Thanks in advance
     
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