208/GE CLIPS : CROCODILEWith serrated jaws, spring loaded, plastic top.
Consisting of double pole, double throw, changeover switch on bakelite base approx. 100 x 15 mm; with extra base of Size 48 x 114 mm, having 3 terminals.
Mounted on base.
211/ED ELECTRIC BELLLarge demonstration model; actually working, and also explaining construction, open type on wooden stand.
212/NE ELECTRIC FIELD APPARATUSAllows electric field pattern to be shown in much same way that magnetic field are demonstrated with iron fillings. Comprises a clear plastic dish , a pair of 4 mm socket terminals / electrode holders and 6 electrodes
213/ED GOLD LEAF ELECTROSCOPEAn aluminium rectangular case has a clear glass sliding front and ground glass back. A brass wire has a gold leaf attached to the lower end and a brass disc at the top. This wire is fitted to the top of the aluminium case through an insulating bush. The apparatus has aluminium or wood base. A notched scale is provided against which the gold leaf moves. Earthing socket is provided on the side of the case.
215/DI HOLDER : BULBMade of plastic, Suitable for screw type MES bulbs.
216/DI HOLDER : CELLFor single, 2, 3 or 4 cells of R-20 size.
Holder of plastic with terminals and tappings after each cell.
With strip, contact points and two terminals, on base.
218/EL KEY : PLUG TYPEOn bakelite base, brass plugs and brass blocks with tapered holes. Contact resistance less than 1 milli ohm.
No. of ways : a) 1 b) 2 c) 3 d) 4
Miniature,
a) 2.4 V,
b) 3.8 V
224/EL METER BRIDGESOne meter long, non-warping, stackable, polished wood board. Base has a meter scale on it which is graduated in mm's and cm's. A constantan wire stretches along the scale and is soldered to heavy plated brass end plates. A plated brass strip runs along the other length of the polished base. Large plated brass terminals are fitted on the brass strip. Complete with pencil jockey. This is a two gap system for normal wheatstone bridge work.