Detectron Corporation Model DG-7 Geiger Mueller Survey Meter (ca. 1950 - 1960) |
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The Model DG-7 GM survey meter was produced by the Detectron Corporation of North Hollywood, California. The company was founded (ca. 1949-1950) by Larry Cassingham and Jack Rondou. Rondou suggested that they call their new company "Detectronics" but Cassingham thought the name was too long and shortened it to "Detectron." The DG-7 seems to have been produced in at least two versions. That pictured in the AEC Catalog Supplement of 1954 has a square (rather than round) meter face and the probe was attached to the top of the handle rather than the side of the case. |
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As an advertising flyer for the DG-7 noted, it was "the ultimate in low
cost light-weight all-purpose Geiger Counters" . . . "tropicalized,
fungus resistant and waterproof " and "very
satisfactory as a laboratory instrument, for industrial monitoring, and for
use as a civil defense monitor in decontamination procedures."
Detector: Thin wall GM tube Range: 0 - 0.2, 0 - 2.0, and 0 - 20 mR/h Audio: no speaker but connections for headphones Size: 3.25" x 6.5" x 5.25" Batteries: two 45 volt, two 1.5 volt and one 15 volt Price: $150.00 Since Detectron was located in North Hollywood, it was only natural that their instruments were used in a number of motion pictures, e.g., The Brain from Planet Arous. In fact, Larry Cassingham, the company president, served as the Technical Director for a number of films, e.g., Zombies from the Stratosphere with Leonard Nimoy and The Atomic Kid starring Mickey Rooney. Donated by Ron Kathren References Atomic Energy Commission
Radiation Measuring Instruments, RIB-8 (supplement 2) Advertisement/flyer, no date. Cassingham, C. "Detectron and Larry Cassingham" website http://www.curtcass.com/detectron/ Operating Instructions. Detectron Models DG-2 and DG-7 Geiger Counters. No date. ca. 1950s. |
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