Cdv-720 Beta-gamma Survey Meter Vintage Antique

US $620

  • Grand Blanc, Michigan, United States
  • Oct 20th
The item for sale is Model 3A made by Victoreen and is in almost perfect condition. From the instruction sheet this item dates from 1961.   The CD V-720 is a high-range radiological survey meter that reads between Beta and Gamma Radiation but only measures Gamma.  The range of the CD V-720 is 0-500 Roentgens per hour. The sliding cover on the bottom of the meter case blocks Beta particles when closed allowing only Gamma radiation to pass through the detector. When the cover is opened this allows Beta particles to pass through the very thin metal membrane on the bottom of the CD V-720's Ion Chamber resulting in detection of beta radiation. See pictures. This is the last one !  A  great chance to own a museum  quality piece of Civil Defense history.   

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