Timstar

Locktronics switch, push to make, metal strip.

Locktronics reed switch, normally open.

Locktronics solenoid.

Locktronics buzzer, 6 V, 15 mA.

This carrier connects an external power supply to a carrier with a battery symbol on it to allow 'plug top' power supplies to be used with Locktronics kits.

35 pillar Locktronics baseboard used to mount your Locktronics carriers onto to build your circuit.

16 pillar Locktronics baseboard onto which you can securely mount your Locktronics carriers to build your circuit. Board comes with battery retaining clips.

Locktronics battery retaining clip.

This kit provides comprehensive range of practical assignments for electricity and magnetism and is ideal for those who are studying science and electricity for science students. The kit is supplied with comprehensive set of worksheets that cover the electrical and electronic principles. Suitable for students of Physics aged 16 to 18. Kit contains: • Plastic trays lids • 1 Power supply • 1 Small bar magnet • 3 MES bulb, 6 V, 0.04 A • 1 Capacitor, 22,000 µF, Electrolytic 16 V • 1 Locktronics User Guide • 1 Resistor, 100 ohm, 1 W, 5% (DIN) • 1 Capacitor, 1,000 µF, Electrolytic 30 V • 1 Resistor, 10 ohm, 1 W 5% (DIN) • 1 Resistor, 47 ohm, 1/2 W, 5% (DIN) • Transformer, 2:1 turns ratio • 1 Light dependent resistor • 1 Resistor, 1 k, 1/4 W, 5% (DIN) • 1 Resistor, 10 k, 1/4 W, 5% (DIN) • 1 Resistor, 270 ohm, 1/2 W, 5% (DIN) • 1 Potentiometer, 250 ohm (DIN) • 1 Resistor, 5.6 k, 1/4 W, 5% (DIN) • 1 Resistor, 3.9 ohm, 3 W, 5% (DIN) • 1 Resistor, 68 ohm 1/2 W, 5% (DIN) • 12 Connecting Links • 3 Lamp holders, MES • 1 x 400 turn induction coil • 1 Thermistor, 4.7 k, NTC (DIN) • 1 Capacitor, 2,200 µF, Electrolytic, 25 V • 1 Capacitor, 1 µF, Polyester • 1 Switch, on/off, metal strip • 1 Resistor, 22 k, 1/4 W, 5% (DIN) • 1 Choke, 47 mH • 1 Resistor, 2.2 k, 1/4 W, 5% (DIN) • LED, red, 12V (SB) • 1 Curriculum CD ROM • 3 AA battery holder carrier • 1 x 1:1 transformer with retractable ferrite core • 1 Nichrome Wire Carrier, 0.075 500 mm • 1 Nichrome Wire Carrier, 0.075 250 mm • 1 Nichrome Wire Carrier, 0.21 500 mm • 1 Constantan Wire Carrier, 0.075 500 mm • 1 Power supply carrier with battery symbol • 7 x 5 metric baseboard with 4 mm pillars Topics students can study include: • Batteries in series and parallel • Internal resistance of batteries • Power dissipation and efficiency • Potential dividers • Resistivity • Kirchoff's laws • AC circuits • Capacitors • Transformers

This kit provides comprehensive range of practical assignments into electricity and magnetism and is ideal for those who are studying science and electricity within wide variety of academic or vocational courses. The kit is supplied with comprehensive set of worksheets that covers the electrical properties of materials, and introduces students to electricity. Suitable for pupils from age 11 upwards. Kit contains: • 1 Locktronics blister pack clear tray insert • 1 Adjustable DC power supply • 2 BNC male to dual 4 mm binding posts • 1 AC voltage source carrier • 1 Resistor, 100 ohm, 1 W, 5% (DIN) • 1 Low power solar motor • 1 Resistor, 1 k, 1/4 W, 5% (DIN) • 2 Resistors, 10 k, 1/4 W, 5% (DIN) • 1 Potentiometer, 10 k (DIN) • 1Capacitor, 0.1 µF, Polyester • 9 Connecting Links • 1 Thermistor, 470 ohm, NTC (DIN) • 2 Leads, red, 500 mm, 4 mm to 4 mm stackable • 3 Leads, black, 500 mm, 4 mm to 4 mm stackable • 1 Lead, blue, 500 mm, 4 mm to 4 mm stackable • 1 Capacitor, 100 µF, Electrolytic, 25 V • 1 Capacitor, 1 µF, Polyester • 1 Op Amp Carrier (TL081) with 2 mm to 4 mm Lead • 1 LED, red, 12 V (SB) • 1 LED, green, 12 V (SB) • 1 Dual rail power supply carrier • 1 Speaker • 1 Voltmeter, +/- 7.5 V The following experiments and learning objectives are covered: • Electrical properties of materials • Simple circuits • Heat and magnetism • Basic circuit symbols • Current flow • Series and parallel circuits • Patterns of voltage and current • Electrical sensors • Relays and electromagnets

This kit is complete teaching and storage solution with classroom friendly trays and foam to keep carriers tidy and secure. The solution comes with baseboard with battery retaining clips, power supply and power supply carrier allowing you to choose the most appropriate power source for teaching simple circuits. Extensive curriculum is provided to guide the teaching and learning of electricity required at Key Stage 2. Kit contains: • 1 x Deep storage tray with lid, foam insert and daughter tray • 1 x International power supply • 3 x 2.5 V, 0.2 A MES bulbs • 1 x Locktronics baseboard with battery retaining clips • 9 x Connecting Links • 3x Lampholder carriers • 1 x 75 mm black lead • 1 x 75 mm red lead • 1 x Press switch • 1 x On/off switch • 1 x Buzzer • 1 x Motor • 1 x Curriculum pack CD ROM • 1x Power supply carrier with battery symbol

19 mm width. In rolls of 20 m.

This PicoScope is extremely versatile, with an Oscilloscope, spectrum analyser and arbitrary waveform generator. Its compact size makes it extremely portable and the case is very robust. Connections are simple, comprising, channel A, channel B, signal out and USB socket. Dimensions (L x W x H): 100 x 135 x 45 mm. The USB (2.0) provides power, eliminating the need for an external power supply. The USB connection facilitates high speed data transmission. The Windows software supplied with each PicoScope is very simple to use. It features an auto setup function which reduces setup time to few minutes. Updates to the software are provided free of charge. It has an input range of: ±50 mV, ±100 mV, ±500 mV, ±1 V, ±2 V, ±5 V, ±10 ±20 V. Specification: Model: Picoscope 2204 • Bandwith (MHz): 10 • ETS (GS/s): 5.0 • Sampling rate (MS/s): 100 • Scale (ns-s/div): 2-50 Signal Generator Output: • Buffer Size: 4k words • Vertical Resolution: 8 bits • Output Range: ±125 mV to ±2 pk-pk with ±1 offset • Output Resistance: 600 Ω • Clock Frequency: 2 MHz • Bandwidth: DC to 1 MHz

This PicoScope is extremely versatile, with an Oscilloscope, spectrum analyser and arbitrary waveform generator. Its compact size makes it extremely portable and the case is very robust. Connections are simple, comprising, channel A, channel B, signal out and USB socket. Dimensions (L x W x H): 100 x 135 x 45 mm. The USB (2.0) provides power, eliminating the need for an external power supply. The USB connection facilitates high speed data transmission. The Windows software supplied with each PicoScope is very simple to use. It features an auto setup function which reduces setup time to few minutes. Updates to the software are provided free of charge. It has an input range of: ±50 mV, ±100 mV, ±500 mV, ±1 V, ±2 V, ±5 V, ±10 ±20 V. Specification: Model: Picoscope 2205 • Bandwith (MHz): 20 • ETS (GS/s): 10.0 • Sampling rate (MS/s): 200 • Scale (ns-s/div): 1-50 Signal Generator Output: • Buffer Size: 4k words • Vertical Resolution: 8 bits • Output Range: ±125 mV to ±2 pk-pk with ±1 offset • Output Resistance: 600 Ω • Clock Frequency: 2 MHz • Bandwidth: DC to 1 MHz

A digital storage oscilloscope, designed with simplicity in mind. The vast array of advanced measuring options found in most digital oscilloscopes is mostly omitted, leaving only the essential features required in schools. This means the unit is very accessible for students and teachers alike. • 7"" colour screen (800 600) • 20 MHz Bandwidth • Sample rate: 100 MS/s • Dual channel • Automatic measurement • Dimensions: 301 x 152 x 70 mm

Socket in the top providing an in-line stackable facility. The lead wire is clamped in position by screw located at the bottom of the socket. Sold in packs of 5.

Socket in the top providing an in-line stackable facility. The lead wire is clamped in position by screw located at the bottom of the socket. Sold in packs of 5.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Rheostats ideal for school use. Consisting of heavily oxidised resistance wire wound upon vitreous enamelled steel tube and locked into place with ceramic cement, multi-leaf phosphor bronze heavy duty sliding contact on nickel plated rod. Robust enamelled die-cast end stands and 4 mm socket terminals. Dimensions (Dia.): 43 mm.

Slide wire pattern with four gaps for known and unknown resistors. A straight resistance wire stretched along metric scale mounted on wooden base. Wire can be easily replaced if damaged or broken. Complete with jockey. All connections are low resistance and via standard 4 mm sockets. Length: 1.5 m.

Slide wire pattern mounted on rigid anodized aluminium base fitted with a metric scale with two equal lengths of constantan wire running across their length. Connection to the resistance wires is made via 4 mm sockets. Resistance wires located along the meter rules, giving total length of 2 metres. Complete with knife jockey. Resistance of wire approx 2 Ω/m.

Jockey for Potentiometer

A four decade resistance box covering to 9999Ω in 1Ω steps. Plastic enclosure box with resistance values 5% tolerance. Dimensions (L x W x H): 165 x 80 x 50 mm.

This apparatus provides the basis for student investigations into resistance. Four wires, 500 mm long mounted on an acrylic base and connected via 4 mm sockets. The wires are all Nichrome with diameters of 1.0, 0.8, 0.63 and 0.4 mm giving resistances in the range 0.4 to ohms. A graduated mm scale is included allowing resistance length and resistance This apparatus provides the basis for student investigations into resistance. diameter investigations to be easily covered. Dimensions (L): 500mm.

Mini substitution unit using a single rotary switch to select from twelve values all at 5% 0.5 W. Values in are 100, 330, 470, 680, 1k, 3.3k, 4.7k, 6.8k, 10k, 33k, 47k and 100k. Connections via 4 mm sockets.

A decade resistance substitution box ideally suited for school or college use. The box will simulate resistances from to 999,999 Ω in 1 Ω steps. The value selected is clearly indicated on the dials.

This apparatus contains an NTC bead thermistor with nominal resistance of 4.7 kΩ in a glass tube with electrical connection made by means of 4 mm sockets. Students from KS3 to Post-16 can carry out practical investigations into the thermistor characteristics. Full instructions and specimen results included. Dimensions (L): 220 mm.

Conducting putty is a useful aid to teaching resistivity and the relationship between length and cross-sectional area on resistance. A cylinder 60 mm long and 20 mm in diameter has a resistance of approximately 20 Ω. Can readily be connected into an electrical circuit and both length and diameter can easily be altered by 're-moulding' the putty. Although harmless, plastic gloves are provided to prevent hands from becoming stained. Approx. 100 g.

A 4 mm screw-socket which can be mounted on to panels up to 12.7 mm thick. Supplied in packs of 5. • Current: 10 max • Height above panel: 24-32 mm • 14 mm outer diameter • Thread size 4BA

A 4 mm screw-socket which can be mounted on to panels up to 12.7 mm thick. Supplied in packs of 5. • Current: 10 max • Height above panel: 24-32 mm • 14 mm outer diameter • Thread size 4BA

A handy sized, more environmentally friendly lead-free alloy solder which contains non-corrosive flux. Size: 1 mm dia. X 2 m long. Contains 99.3% tin and 0.7% copper.

General purpose soldering iron to BS3456 (2.14) featuring the same double shaft principle as CS-18. Very low current leakage (1 uA maximum). 230V AC with PVC cable and fitted 13A mains plug to BS1363A. Supplied with 3 mm bit. Operating tip temperature: 420°C.

A useful aid when soldering, gluing, etc.

A range of sturdy, mounted coils, designed for use with laminated cores and clips. The coils have different numbers of turns of copper wire, allowing students to investigate the relationship between voltage and number of turns, showing how transformers work etc. They can also be used to demonstrate electromagnetic induction (Faraday's law). Coils come complete with 4 mm sockets and include these coils: 50+ 100 turns; 200+ 300 turns; 300+ 350 turns; 400+ 500 turns; 550+ 600 turns.

Spare C Core and clip for Westminster Electromagnetic Kit MA91525.

Laminated U-core with armature and clamp screw. Cross sectional area: 20 x 20 mm.

Laminated I-core. Dimensions (W x H x L): 20 x 20 x 83 mm. Mass: 225 g.

Coils to fit EL150800 and EL150806. Made of coloured plastic with 4 mm safety jack connectors. Armatures available separately. The coils are provided with transparent, adhesive polyester foil with effective voltage insulation up to 4500 V to reduce the risk of electric shock. • Hole size: 20.5 x 20.5 mm • Max. current: 2 A • Resistance: 0.7 Ω • Thread diameter: 0.9 mm • Inductance: Approximately 680 µH

Coils to fit EL150800 and EL150806. Made of coloured plastic with 4 mm safety jack connectors. Armatures available separately. The coils are provided with transparent, adhesive polyester foil with effective voltage insulation up to 4500 V to reduce the risk of electric shock. • Hole size: 20.5 x 20.5 mm • Max. current: 2 A • Resistance: 0.7 Ω • Thread diameter: 0.9 mm • Inductance: Approximately 680 µH

Coils to fit EL150800 and EL150806. Made of coloured plastic with 4 mm safety jack connectors. Armatures available separately. The coils are provided with transparent, adhesive polyester foil with effective voltage insulation up to 4500 V to reduce the risk of electric shock. • Hole size: 20.5 x 20.5 mm • Max. current: 2 A • Resistance: 0.7 Ω • Thread diameter: 0.9 mm • Inductance: Approximately 680 µH

Coils to fit EL150800 and EL150806. Made of coloured plastic with 4 mm safety jack connectors. Armatures available separately. The coils are provided with transparent, adhesive polyester foil with effective voltage insulation up to 4500 V to reduce the risk of electric shock. • Hole size: 20.5 x 20.5 mm • Max. current: 2 A • Resistance: 0.7 Ω • Thread diameter: 0.9 mm • Inductance: Approximately 680 µH

For building a simple galvanometer. The insert consists of a permanent magnet with a pointer. The device is fitted with 0-centre scale. Compatible with coils EN140105-EN140120

A laminated, low loss core on which to attach coils in different combinations to demonstrate the principle of step-up and step-down transformers. Various coils can be used for GCSE physics and A-Level physics to show how transformers are used in domestic electrical appliances and in the National Grid for power transmission. Demonstrations work well with the Interscale Demonstration Meter EL52300. The core is made up of highly permeable U-shaped metal sheeting, which can be closed via two clamps with tightening screws. The cross-section of the core measures 40 x 40 mm. Contents: • Transformer core • 1x 6000 turn, 0.2 A coil, with tappings every 2000 turns • 1x 1200 turn, 1.25 A coil, with tappings at 300 & 600 turns • 1x 72 turn, 12 A coil, with tappings at 6, 30, 54, and 66 turns • 1x 600 turn, 2.5A coil, with mains input, switch and protective fuse The Premium Version is supplied in Gratnells tray with insert.

A laminated, low loss core on which to attach coils in different combinations to demonstrate the principle of step-up and step-down transformers. Various coils can be used for GCSE physics and A-Level physics to show how transformers are used in domestic electrical appliances and in the National Grid for power transmission. Demonstrations work well with the Interscale Demonstration Meter EL52300. The core is made up of highly permeable U-shaped metal sheeting, which can be closed via two clamps with tightening screws. The cross-section of the core measures 40 x 40 mm. Contents: • Transformer core • 1x 6000 turn, 0.2 A coil, with tappings every 2000 turns • 1x 1200 turn, 1.25 A coil, with tappings at 300 & 600 turns • 1x 72 turn, 12 A coil, with tappings at 6, 30, 54, and 66 turns • 1x 600 turn, 2.5A coil, with mains input, switch and protective fuse The Premium Version is supplied in Gratnells tray with insert.

To fit the EL180820 demountable transformer kit. Fits 40 x 40 mm core.

To fit the EL180820 demountable transformer kit. Fits 40 x 40 mm core.

To fit the EL180820 demountable transformer kit. Fits 40 x 40 mm core.

To fit the EL180820 demountable transformer kit. Fits 40 x 40 mm core.

To fit the EL180820 demountable transformer kit. Fits 40 x 40 mm core.

Used to demonstrate that a step down transformers can produce currents that are large enough to weld metals or boil water.

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.