One of a set of beta electroscopes developed and patented at Chalk River in the 1940s under the leadership of Hugh Carmichael for the accurate measurement of radioactivity. This model, believed to be a Type T.Q.V. (see artifact 2023-017) does not bear a nameplate but does have the (Serial?) number 246 stamped on the body. It is built on a 21 cm diameter circular, adjustable base and stands 35 cm tall. Like 2023-017, it has a separate high-voltage connector at the base. It also has a separate, fully-contained, metal housing the light bulb (and possibly other items) attached to the experimental chamber. The connector to the box an 8-pin low-voltage one. It is not clear what signals/power was supplied to this connector.
