Textured yellow plastic dosimeter charger in a pistol shape. There is a void at the top of the charger where the pocket dosimeter is placed for charging. Under the horizontal charging slot, there is a yellow trigger for inserting the dosimeter. On the vertical handle is a black handle for the recharging. On the side of the handle is a label that is stamped with the serial number: A 006439.
The primary purpose of the Model CD V-750 was to charge civil defense dosimeters (CD V-138, 730, 740, and 742). Charging was done by adjusting the dosimeter so the quartz fiber, visible through the eyepiece as a fine line running vertically across the scale, is set at zero. No batteries are required for this charger. By squeezing the black handle, a stress is created on a piezoelectric crystal. This stress produces the potential that is used to charge the dosimeter fiber (move the fiber to the left on the scale). The small black button above the handle is used to discharge the fiber (move it to the right). To load the dosimeter into the charger, the yellow clamp trigger is squeezed. This causes the spring-loaded clamp (the "L" shaped gray bar in the photo) to extend back so that the dosimeter can be positioned along the top of the charger. When the clamp trigger is released, the clamp moves back in to hold the dosimeter in place.
Following the Civil Defense Act of 1950, Americans across the nation began to prepare for the possibility of a domestic nuclear attack. This response came in the wake of the Soviet Union’s successful test of “Joe One,” their first atomic bomb. This donation includes a number of civil defense (CD) artifacts, including an armband, slides, and radiation detection meters. In addition to CD artifacts, this donation includes a number of pieces of equipment used to monitor or detect radiation, such as dosimeters, detectors, metering units, and simulators for practicing radiation detection. This donation includes several duplicates of artifacts that will be brought in as use items.