Browse Items (3473 total)

cylinder with screw hole on top of wooden base with groove for running along optical bench.

cylinder with screw hole on top of wooden base with groove for running along optical bench.

cylinder with screw hole on top of wooden base with groove for running along optical bench.

cylinder with screw hole on top of wooden base with groove for running along optical bench.

Tall paper covered wooden screen on top of a wooden base with groove for optical bench and 2 metal pointers on base. 3 cut sheets of paper (backs of old forms) have been used and slotted in to the built in grooves.

Small metal, painted black, circular screen with groove in base and screw to tighten it around an optical bench.

On top ' C60302 ' With 3 circular adjustable feet. 8 bronze terminals; on 2 curved platforms (4 each). Glass window with bronze frame jutting out of the front.

50 OHMS in white ink between the 2 terminals. Scale 8 - 0 - 8 in divisions of 0.2 . On circular platform with knob

50 OHMS in white ink between the 2 terminals. Scale 8 - 0 - 8 in divisions of 0.2 . On circular platform with knob with maker stamped on top.

Squat, black plastic casing, with name of maker in brass and encircled by brass ring. 2 terminals, a clamp and free switch and a place for the power cable. Scale runs from -8 to +8 in 0.2 intervals, numbered every 1unit. Number on top.