To show the action of electric current on a magnet. Cobalt steel needle 75 mm, long with agate bearing supported by pivot mounted on plastic base and surrounded by a rectangular of copper rod 85 x 45m....
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Comprising a strong U-shaped magnet and a pair of brass rails with 4mm socket terminals. A brass axle with plastic discs is free to roll along the rails and completes the electrical contact between th....
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On sturdy streamlined base with provision for horizontal or vertical use. Forks is manufactured from selected steel. Prong is 10x25x300 mm. Accurate frequency adjustment chrome plated, vibrations rate....
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Designed to show the effects of vibrations in a stretched cord and investigate the relationship between frequency, tension and density. In addition the provision of electrical contacts, opened and clo....
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ALINCO, in pairs, Lifting Power 500 gms., with keepers. Dimensions are nominal. Supplied in card board boxes.                                          Size  A      37 x 13 x 10 mm  B       50 x 13 x 1....
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ALINCO, in pairs with keepers. Dimensions are nominal. Supplied in cardboard boxes. Size   A    25 x 15 x 10 mm    B     37 x 15 x 10 mm     C     50 x 15 x 10 mm     D     50 x 15 x 10 mm      E    7....
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ALINCO, with keepers. Dimensions are nominal. Supplied in cardboard boxes. Size A  50 x 12 x 8 mm B   75 x 12 x 8 mm C   100 x 12 x 8 mm D   150 x 12 x 8 mm E    50 x 15 x 5 mm F      75 x 15 x 5 mm G....
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Chrome Steel, 12 mm. diameter, in Pairs. Length: 50mm, 100mm, 150mm

Size 50 x 10 x 5 mm, per pair with plastic cover.

For demonstrating the conversion of electric energy into mechanical energy. Star-shaped copper disc 9 cm. Diameter rotatable vertically on pair of adjustable centers and dipping into mercury trough be....
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Iron, U core, circular section, with flat ends, has one bobbin in each limb wound with enamelled copper wire, with armature.

For demonstrating magnetic replusion. Comprises six ceramic ring magnets around a rod fixed on a base.

Magnet, Horse Shoe, Chrome Steel with keepers

Gravesande?s, ring mounted in rod with handle, ball with chain. Cold ball passes through the ring but does not pass when heated the ring & the ball with separate handles.

With aluminium bowl in gimbals and mounted in wooden polished box, slide 20 cm with sliding lid. Diameter of card 10 cm.

Diam.50 mm. with cover and locking arrangement. Dial marked with points of compass and degrees.

With dial marked with principal points of the compass, one glass face only in plastic/aluminium case. Available in different sizes.

ALINCO, with keepers. Dimensions are nominal. Supplied in card board boxes. Size                                    Centre Gap                  Lifting Power 37 x 13 x 10 mm                18 mm      ....
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Magnetised 32 x 16 x 8 mm 36 x 18 x 6 mm 36 x 18 x 8 mm 45 x 22 x 8 mm 45 x 22 x 11 mm 53 x 24 x 10 mm 72 x 32 x 10 mm Other sizes and shapes available. ....
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An accurately balanced magnetic needle, strongly magnetised is fitted with hardened steel pivot marking in jewels cup bearings. The needle can be easily removed for reversal. The inclination scale is ....
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Comprising plastic fomer with terminals and circle marked 0-180-0 divided and figured every 45 degree, with magnet pivot, wound with 30 turns enamelled copper wire and complete with 75mm magnetic need....
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Low voltage, suitable for magnetising and demagnetising ordinary magnets, iron bars, strips etc. Comprises a solenoid wound with insulated copper wire and mounted on a base, complete with switch and 4....
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A: Comprising a stout metal box, 100mm diameter, with aluminium dial graduated in degrees 0-90 four times, anti-parallex mirror slot made by bakelite. B: As above, but made of bakelite/metal case, mou....
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