233/EL SWITCH : LEVER On base, with terminals. No. of ways 1, 2, 3.

234/EL SWITCH : REVERSING The key has laminated phosphor-bronze brushes, ensuring good rubbing contact. Bakelite handle fitted with brass contacts on spring loaded pivot, on bakelite base with contact plates.

236/EL TERMINALS - Bakelite With knurled head and nut.

237/GA TERMINAL BLOCK Plastic with embedded screw holders and screws.

238/GA TERMINALS: clip type Clip type with plastic shank.

239/DI TORCH : ELECTRIC One, two, three cells type, best focussing.

240/ED VAN DE GRAFF GENERATOR With 220 V, 50 Hz. motor on heavy base with flexible rubber belt arrangement, removable, polished aluminium metal sphere of 165 mm dia. at the top; spherical discharger of 75 mm dia. mounted on an insulating rod drilled at the end to take a 4 mm plug. Gives a spark length of 70 mm approximately. The main metal dome has a socket on top in which different accessories can be attached. One spare belt supplied. Complete with 3 core P.V.C. covered mains cable for connection to mains supply. A) Motorised  B) Hand driven

241/OM AMMETERS 1. AMMETER SINGLE      0 - 1, 1.5, 2, 3, 5 or 10 amp. Rectifier type with current transformer.  2. MILLI AMMETRS      0-1 to 1000 mA 3. MICRO AMMETERS     0 - 25, 0-50, 0-100, 0-250, 0-500 micro ampere

242/OM GALVANOMETER A 35-0-35 Range, moving coil type for DC use sensitivity- 15 micro amp /DI v. Approx

243/OM GALVANOMETER DOUBLE  RANGE : 500 - 0 - 500 Microamps

244/OM VOLTMETER 1. VOLTMETER SINGLE  0 - 1, 1.5, 2, 3, 5 or 10 amp. Rectifier type with current transformer.  2. MILLI VOLTMETERS  0 to 10, 0-25, 0-60, 0-100 mV

1 2 3 4 5 6 7 8 9