Motor driven suitable for usual electrostatic experiments. Consists of an aluminum sphere 175mm diameter and a spherical discharger 75mm diameter mounted on an insulating rod.

Optically worked working sides, equilateral Borosilicate crown glass, and refractive index 1.510.

RESISTANCE BOXES, DIAL DESIGN

Floating Ring Magnets

It is folding type Overhead Projector which folds in seconds to carry comfortably in a moulded luggage carrying case.

Plated brass,each conductor on insulated stand

Provide a simple means of producing single or multiple rays of light for use in elementary optics. Made of die-cast alloy, the raybox has an open front and vertical internal grooves to accommodate a slit plate and a cylindrical lens. Supplied complete with a metal plate having single and triple slits, a 12 V 24 W SBC line filament lamp and a lamp holder.

Equilateral, cemented, with hole & stopper at top

Brass dial head 40 mm diameter, divided and marked in 100 divisions, vertical scale 10-0-10 mm, fitted on tripod stand, distance between legs 40 mm.

Direct Vision Spectroscope without Wavelength Scale

240V-600W (Model RP-22) 24V-250W (Model RP-22A) 24V-250W/Twin (Model RP-22B)

Glass, one each double convex, Plano-convex, concavo-convex, convexo-concave, Plano-concave and double concave lens, in box.

Having three or four pairs of ratio coils of (10,100,1000 ohms ) and 16 series coils of selected double covered wire enclosed in a teakwood case with Sunmica Top. The blocks are made of brass size

P-0157 Magnifier Folding - D

Bench has two steel rods, one of which is graduated in mms. with heavy metal end supports with levelling screws with four metal slides which slide smoothly on the bench. Two of the slides have transverse motion arrangement. Complete with two lens holders and two object needles.

Right angle, polished faces, edges slightly bevelled, 90°x45°x45°

Consists of a chrome plated brass resonance tube 100 cm long, brass reservoir 250 ml and a meter scale mounted on a metallic stand. With rubber tubing.

Consists of four dials in series of ranges X1, X10, X100, X1000 having total resistance 11110 ohms.

This is a 12V, 24V

In metal frame with black plastic handle

Consists of a robust light box in matt black finish with a 12 V 24 W axial filament lamp with flexible leads

These precision made mass sets are made from brass. The masses are finely adjusted, marked and mounted on a simple rack with handle.

Each set consists of nine equal masses on a carrier of the same mass.

Metal holder with sides grooved to hold lens on wooden support, for 50 mm diameter Lens

SW105

Designed for general laboratory work. The telescope is mounted on 16 mm diameter & 45cms. high rod fitted on heavy tripod base. The telescope is fitted with 25 mm clear aperture achromatic Objective & 10 x Ramsden Eye piece with cross wire. Focussing by rack & pinion from 1 meter to infinity. Supplied complete with perspex scale & scale holding attachment.

With plated brass knife edge mounted in insulated handle 80mm long. Provided with a plated brass 4mm socket terminal for connection. Overall length 110mm.

Reads to 1 minute of arc.150 mm diameter scale with protective cover and acrylic windows to read verniers, is fixed to the telescope movement.

Mechanical

Multi-coloured disc mounted on metal stand, rotated by a hand wheel

Tubular balance made from plastic. Each range is colour coded for easy identification.

Rheostats are made with a variety of resistance & current carrying capacity so as to satisfy every need. Ohms : Available from min 4 Ohms to max 13000

Rectangular, glass, back silvered, with protective coating, pack of 10

Traditional electrostatic generator consists of two 250 mm diameter, discs with radial aluminium segments driven in opposite directions by hand wheel and belt, with two leyden jars, on wooden base.

With brass or aluminium fitting & teak wood polished base.

One element, f-300mm 3 element, f-275-320 mm (RPZ-25A)

A compact visible spectroscope which allows the direct reading of spectral length and employs a prism for dispersion.

Spectrometer Standard (College Type) Model GE -74

One element, f-300mm Optional : Three element, 275-320mm

A 500 mm diameter disc marked every 5° is mounted on a heavy stand and is rotatable around its centre. It can be held in any desired position.

To show principle of reflection, with two plane mirrors fixed at 45°, overall size 250 x 45 x 45 mm, polished wood.

Projects bright and sharp image from handwritten illustrations, graphs, pictures and diagrams on transparent materials.

Fitted in plastic frame

ENAMEL TUBES : Special non-breakable Enamel Tube Rheostats are also available on Demand.

Glass, equilateral, polished faces, edges slightly bevelled, (60d X 60d X 60d)

Superior quality Heavy Brass metal blocks size 1/2" are bound to bakelite plate by means of nuts and screws securing rigid fixation and eliminating any chance of contact error creping due to loosening of plugs and lugs which are cut to fine taper and are interchangeable. Plugs heads are machine moulded , of heavy insulated bakelite in beautiful shapes. the boxes are made to Teak-wood and nicely polished.