Provides approx. 1200 Volts at a few hundred Amps . One of the largest vacuum tubes. Pool of mercury in the base acts as a cathode, feeding the 3 side-arm anodes, one for each phase of a 3-phase supply. Three intermediate grids provide some control…
Glass jar with wooden lid; lid handle extends through to bottom of lid with chain attached which hangs into jar. Jar is painted in conducting material.
Glass plates forming prism sides can be adjusted independently from vertical to 50 on scale calibrated in divisions of 1 degree. Feet adjustable. Prism mounted above spillage tray (approx 170 mm diameter) on tripod base.
Convex lens in brass holder with ball joint attachment to brass stand which itself is attached by ball joint to the base, illuminates microscope objects with use of a side light
Metal disc with 5 circular holes around it. Stuck into 3 of the holes is a cork with a metal rod through it. The metal rods meet up in the centre and are quite long. The whole device can be held by a handle on the end of a shorter rod at the top…
black metal box with a mains plug coming out of the side of it. On the same side is an on/off switch and a panel which says "MAINS VOLTAGE" and 7 holes with "0, +10, +20, 100, 150, 200, 300" beside them and 2 plastic topped screws. There is also…
