Published:2009/7/19 22:28:00 Author:Jessie | From:SeekIC
Neon indicator lamp comes on when counter flip-flop of radioactive dust particle alarm stops. Flip-flop normally operates at minimum of 10 transitions per second due to slight leakage from radioactive test source built into detector.-H. E. DeBolt, How Radiation Monitor Guards Nuclear Navy, Electronics, 33:4, p 43-45.
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