Jordan V-750 Radiological Dosimeter Chargers w/ 5 Bendix V-742 Dosimeter Pens

Description

Civil Defense Jordan V-750 Radiological Dosimeter Chargers w/ 5Bendix V-742 Dosimeter Pens .
The model #s you will receive will be either a: 5, 5a, 5b.
From the Division of Emergency Services. Because we have more than one of these, you may not receive the unit shown in picture, so the serial numbers will vary, but the unit you receive will be in like condition, with some showing a little less wear and some showing a little more wear. Operates off of 1 "D" Battery, not included.
Cold War Era - Civil Defense Jordan V-750 Radiological Dosimeter Chargers w/ 5 Bendix V-742 Dosimeter Pens. The electrostatic dosimeter is a pen-size scientific instrument with an eyepiece you look into at the top of the dosimeter and a charging contact at the bottom. Inside the device is a microscopic scale with a hairline indicator. This shows the amount of radiation absorbed by the device since the last time it was reset to zero. The dosimeter is reset by charging it with electricity using with a dosimeter charger. This device fills the inner chamber of the dosimeter tube with a high voltage charge. By looking through the eyepiece while this is being done, the user can manipulate the charger knob to reset the hairline indicator on the radiation scale inside the dosimeter to the "0" point. This sets the dosimeter to zero and readies it for use. The user then carries the dosimeter on their person (hence the clip on each dosimeter, to hold it in a pocket or on clothing) while he works near radiation. As radiation passes through the dosimeter (and the wearer!) it discharges the dosimeter and the hairline indicator on the scale will move up from 0, which thus records the total dose of radiation that passed through the dosimeter (and again, through the wearer!) since it was reset (charged). Any time the wearer wants to check how much radiation he has received, he can take the dosimeter out, point it towards a light source, and look through the eyepiece at the microscopic scale inside. If any radiation was received, the hairline indicator will have moved upscale from 0 and will show the amount of radiation received by the wearer.