Timstar - Science

Lenz's law transformer accessory kit to demonstrate the production of large magnetic fields and Lenz's law damping on pendulums with and without slits.

Torch bulbs.

12 V, 24 W bulb, with SBC fitting, and axial (vertical) filaments. Suitable for ray boxes. Dimensions 55 x 38 mm (L x Dia)

To safely demonstrate the need for high voltage transmission of electricity. This apparatus clearly demonstrates how this is achieved using the interconnected boxes through which pupils can see the components. The high and low voltage sides are clearly indicated, with resistance wires connected to either side for direct comparison of lamp brightness/energy loss. By gripping the insulated cables the energy loss can be felt in the form of heat. There are also voltmeter sockets for measuring the high voltage. Comes complete with two boxes (transmit and receive), insulated resistance wires, two mounted SBC lamps and full instructions. Touchproof, locking high voltage connectors used throughout it is virtually impossible to get an electric shock Clear lid to the casing so pupils can see how it works and trace the circuit Indicators for low/high voltage Voltmeter sockets for measuring the high voltage Supplied with 2 x kits to make up the pylons AC Power supply and Connection wires are not supplied An additional power supply is required to carry out this experiment, capable of supplying 12V at 5A. Also required are 6 x connecting leads.

Rep HT Leads for EL71435 Mk2

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel (60% Copper, 40% Nickel Alloy).

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Supplied on reel.

Extra flexible stranded copper wire. Supplied in 25 m reel. • PVC insulated • Diameter: 2.8 mm • Max current: 6 A @ 1000V RMS

Extra flexible stranded copper wire. Supplied in 25 m reel. • PVC insulated • Diameter: 2.8 mm • Max current: 6 A @ 1000V RMS

This high quality stranded PVC-insulated equipment wire is ideal for general interconnection within apparatus. It is suitable for use with crocodile clips EL18500 EL18502. • 7 strand/0.2 mm tinned copper conductor • Overall diameter 1.2 mm • Current rating 2 A • Rating 1 kV rms 1.4 at 70°C • PVC insulation • Supplied on reels of 100 m

This high quality stranded PVC-insulated equipment wire is ideal for general interconnection within apparatus. It is suitable for use with crocodile clips EL18500 EL18502. • 7 strand/0.2 mm tinned copper conductor • Overall diameter 1.2 mm • Current rating 2 A • Rating 1 kV rms 1.4 at 70°C • PVC insulation • Supplied on reels of 100 m

10 lengths. For mains use to BS 6500.

Please note, this wire rusts very readily and will probably have some surface rust when purchased.

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Supplied on reel (80% Nickel, 20% Chromium Alloy).

Single core equipment wire consisting of 6 mm diameter solid Copper core with outer PVC sheathing, giving an overall diameter of 1.20 mm. Supplied as 100 reel. 1.8 A rating.

Single core equipment wire consisting of 6 mm diameter solid Copper core with outer PVC sheathing, giving an overall diameter of 1.20 mm. Supplied as 100 reel. 1.8 A rating.

An updated version of the Worcester circuit board kit, using high quality plastic connectors with brass wire inserts to make the connections. Can be used with bench top power supply or batteries (not supplied). Neater and easier to use than the traditional Worcester Circuit Board kits, with no sharp edges. Kit contains: • 1 circuit board • 9 bulb holders • 16 bulbs • 2 push switches • 1 potentiometer • 12 connecting bars • 1 resistor • 1 coil of wire 19 swg • 1 coil of white wire 24 swg • 1 coil steel wire 28 swg • 2 red wires • 2 black wires • 2 crocodile clips • Graphite rods • Steel wool • Teacher's guide • Student activity sheets

Plain connector.

Worcester circuit board lamp connector.

Spare mounted bell push.

Circuit board only.

Deep insect net with telescopic aluminium handle and high quality mesh which is kind to delicate specimens. Suitable for use at all levels. Size of net: 720 x 300 mm dia. Extendable handle: 500-1000 mm.

For population counts and other measurements in the field. Consists of white plastic coated steel rods 500 mm long with markers at 250 mm which simply bolt together to form quadrat frame. Folds flat when not in use.

Solid square metal frame with 25 squares in total. Dimensions: 500 x 500 mm.

Superior quality plastic coated steel 100 squares. Dimensions: 500 x 500 mm.