Ra-Loc 101 GM (ca. 1955)

Ra-Loc 101 GM (ca. 1955)

The Model 101 Ra-Loc GM was manufactured by Electronic Development Laboratory Incorporated of Chicago, Illinois. It is a very simple unit intended for uranium prospecting. "Ra-Loc," of course, means radiation locator.

Ra-Loc 101 GM (ca. 1955)

It has an "ON/OFF" switch, a flashing light to indicate the count rate, and connections for headphones that probably came with the unit but have gone missing with this example.

Size: Approximately 4.5" x 7.5" x 2.5" 

Batteries: Two 1.5 volt D cells