Physics Instruments

Low voltage suitable for magnetising and demagnetising ordinary magnets, iron bars, strips etc. Comprises of a solenoid wound with insulated copper wire and mounted on a base, complete with switch and 4mm terminals. Solenoid 250mm, long x 35mm, internal dia. Operating Voltage 12V A.C. or D.C. at 6A Magnetising by A.C. or D.C. Demagnetising by A.C. only.

For demonstrating magnetic repulsion. Comprises of five ceramic ring magnets, 32mm external diameter and a wooden rod on a base overall height 150mm. If the magnets are placed on the rod so that they mutually repel, the floating effect is readily apparent.

In 500gm bottle.

For demonstrating some metals are magnetic whilst others are not, and for general ‘metal identification’ exercises. Comprises of sixteen discs, 25mm dia. 2 each of mild steel, stainless steel, brass, zinc, nickel, silver, bronze, aluminium and copper. One of each pair is stamped. The other is unmarked.

A set of 12 metal strips for magnetism work. Each stamped with a key letter for identification.

ALINCO, round edges in pairs, with keepers. Dimensions are Nominal. Supplied in cardboard boxes.

	Size Dia.
1	37mm 10mm
2	50mm 10mm
3	75mm 10mm
4	37mm 12.5mm
5	50mm 12.5mm
6	75mm 12.5mm
7	100mm 12.5mm

Chrome Steel, 12mm dia. in pairs.

Cat. No.1118 A	Size
1	50mm
2	100mm
3	150mm

Aluminium, 50mm dia. mounted in metal frame accurately centered.

Cat. No.	Size
1	Single, 1 hook
2	Single, 2 hooks
3	Double, parallel
4	Double, long
5	Triple, parallel
6	Triple, long

ALINCO, with keepers, overall length 25mm and distance across the poles 22mm

ALINCO, with keepers. Dimensions are nominal. Supplied in cardboard boxes.

	Size
1	50 x 12 x 15mm
2	75 x 12 x 15mm
3	100 x 12 x 15mm

150 each of hardened steel rods and shim rings which may be magnetized to show the field and pole distribution. Rods 100x1mm (height x dia.) shim rings having 10mm outside dia.

Dial marked with principal points of the compass, one glass
face only in plastic/aluminium case.
A 12mm B 16mm C 20mm D 25mm E 38mm F 50mm G 75mm

Plotting compass with needles pivoted between top and bottom glass plates without dials. Both sides are made of glass.

Cat No 1119	Size
0	25mm Dia
1	37mm Dia
2	50mm Dia
3	75mm Dia
4	100mm Dia

Consisting of a superior quality polish wooden box slotted and carries a glass tube fitted with simple torsion head to support, by means of a silk fibre, a strip holding magnet etc. Complete with one bar magnet and one brass bar. All metal parts are manufactured from superior quality brass alloy.

Cat No 1120
A	Aluminium
B	Brass

For use as a monometer. This is an unmounted spare glass tube.
a) Graduated
b) Ungraduated