(Didactic Division)

Magnetism

Dip Circle

The case is made of aluminium, strongly mangetised cobalt steel needle fitted with imported hard axle rolls on knife edges agates and can be clamped when desired by a V clamp, a sensitive spirit level is provided. The tripod stand is provided with three levelling screws.

Tangent Galvanometer

The plastic ring or bobbin, 162.5 mm overall diameter wound with three coils of insulated copper wire with 2, 50 and 500 turns mounted on bakelite moulded platform fitted with 4 terminals, rotating on a tripod non-magnetic metal base, supported by levelling screws. Complete with compass box (Magnetometer) mounted at the centre of the ring.

Magnetometer

Comprising a stout metal box, 100mm. diameter, with aluminium dial graduated in degrees 0-90 four times, anti-parallex mirror slot.

Magnetic Needles

Carbon steel with brass cup bearing for pivoting.
 
A
B
C
Length (mm)
50
75
100

Stand Magnetic Needle

Non-magnetic metal pillar with carbon steel point, on stable base, overall height 110 mm.

Compass

A small compass in a metal case, 45 mm. dia. marked in degree with N & S indications.

Ring Magnetic Ceramic

Magnetised
A
B
C
D
E
F
G
32x16x8mm.
36x18x6mm.
36x18x8mm.
45x22x8mm.
45x22x11mm.
53x24x10mm.
72x32x10mm.

Bar Magnets

Chrome Steel, in Pairs, half Red/Blue painted with keepers. Dimensions are nominal.
Size :  37x12x5 mm.
           50x12x5 mm.
           75x12x5 mm.
           100x12x5 mm.
           150x12x5 mm.

Bar Magnets

Dimensions are nominal. supplied in cardboard boxes.

HorsheShoe Magnets

Chrome steel, with keepers, dimensions are nominal.
Size :  50x12x5 mm.
           75x12x5 mm.
           100x12x5 mm.
           150x12x5 mm.