Vintage Precision Radiation Model 111B Scintillator Uranium Finder 1954
Item History & Price
| Reference Number: Avaluer:770903 | Model: 107c |
| MPN: Does Not Apply | Radiation Detector Type: Geiger Counter |
| Brand: Precision Radiation Instruments | UPC: Does not apply |
Vintage Precision Radiation Model 111B Scintillator Uranium Finder 1954Model 111B Scintillator 1954Untested - leather case needs repairPrecision Radiation Instruments' Models 111, 111B and 111C were some of the earliest commercial NaI survey meters. The most common of these is the Model 111B. It was known as the "Deluxe Scintillator." Like most of the company’s instruments, it employed an eye-catching chromed finish. In that regard it was not too different from the automobiles of the... 1950s. The Model 111B seems to have first appeared in 1954.For ease of operation, the “Deluxe”came with only two controls, the range and time constant switches. It employed the same six ranges used by the Model 115 “Super Scintillator”: . The scale also indicated the percent uranium content of ore - in fact, it was the first instrument to employ such a “percent meter.” While it was designed to permit aerial, motor vehicle and foot surveys, it was primarily employed as a hand-held survey meter. The batteries were contained in a separate case that could either be attached to the surveyor’s belt or to the underside of the probe.Detector: 1.5” x 1”NaI crystal. Range: 0 – 0.025, 0 – 0.05, 0 – 0.25, 0 – 0.5, 0 – 2.5 and 0 – 5 mR/hBatteries: four 1.5 volt flashlight batteries, two 22.5 volt batteries and two 67.5 voltPrice: $495.00 in 1954.
