A miniature double pole double throw slide switch suitable for panel mounting. Connections are by solder tags.

• Maximum rating: 250V a.c., 0.25A

• Dimensions of body: 15 x 8 x 7mm

• Fixing centres: 19mm

• Pack of five

This is useful for demonstrating that some metals are magnetic whilst others are not, and for general metal identification exercises.

Comprises of sixteen discs, 25mm diameter, two each of mild steel, brass, nickel, silver, bronze, aluminium and copper.

One of each pair is stamped...

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

A set of optical apparatus for all types of optical experiment involving reflection, refraction and colour mixing. The principal component is a robust light box finished in matt black with a 20W halogen lamp with 0.75m of twin flex. One end of the box has a cylindrical convex lens in an adjustab...

Clear acrylic blocks 15mm thick. All faces fully polished.

Comprises 7 blocks in storage tray as follows:

• Rectangle 75 x 50mm

• Semi-circular 75mm diameter

• Triangle 60º x 60º x 60º, 58mm side

• Triangle 90º x 45º x 45...

A fun way to learn about the power of sunlight. As well as making bracelets, pupils are able to carry out fun experiments investigating solar radiation, effectiveness of suncream and sunlight. A science activity guide is included and allows children to carry out scientific investigations and lea...

Newton Meters - 250g, 2.5N Blue

Newton Meters - 500g, 5N Green

Newton Meters - 1kg, 10N Brown

Newton Meters - 2kg, 20N Red

Newton Meters - 3kg, 30N White

Newton Meters - 5kg, 50N Yellow

Electric motor with drive pulley securely mounted on yellow plastic. Takes plugs or use crocodile clips.

Carbon Rods for electrode holder.

Supplied in packs of 10

A 3 way switch for use with the Basic Electricity Kit.

Vary the current in a circuit using this rheostat.

Supplied with 11Ω coil.

Connect the positive lead to the + terminal.

Takes plugs or use crocodile clips.

It features the Buzzer symbol on top.

Bulb Holder

Bulbs sold separately.

Moving the contact directs the current through different circuits. Switch symbol on top.

Ideal for introductory electronics.

A basic assortment of circuit components including:

• MES Lampholders (x10) (B8A56972)

• MES Bulbs (x10) (B8A56728)

• 6V Buzzer with connecting leads (x1) (B8A61268)

• Electric Motor, 3 - ...

Each Plotting Compass is in a metal case.

Diameter:16mm

Pack size: 10

WARNING! Not Suitable for Children under 3 years due to small parts.

This product contains magnets or magnetic components.

Magnets can cause serious or fatal injury if swallowed.

This can be used to show the forces exerted by atmospheric pressure. A light walled tinplate can, H260 x 75mm diameter, with an air-tight neck and screw cap. A small quantity of water in the can is boiled vigorously until steam occupies the space inside the can, at which point the top is screwed...

A fully sheathed miniature 12V, 50W (nominal) heater specially developed for use with metal block calorimeters.

The element is housed in a 150mm stainless steel tube, the heated section occupying 70mm from the closed end. Electrical connection is via 300mm flying leads with heat resisting ...

For examination of the spectral composition of light sources, radiant bodies, etc. The instrument gives a brilliant spectrum with a dispersion of approximately 11°. The slit is of fixed width and is protected by a glass cover plate. The eyepiece is mounted at the end of a draw tube and is ad...

Range: 0 to 19.99A d.c. only.

Internal resistance: 0.01?.

Overload capability: 100V.

Frequency response, ±2%: 0 to 10kHz.

Display: 31/2 digit LCD with polarity and low battery indication.

Battery: Internal 9v battery PP3 or eq...

Digital Voltmeter

0 to 19.99V D.C only.

Overload capability: ±100V.

Internal resistance: 1M?.

Display: 31/2 digit LCD with polarity and low battery indication.

Battery: Internal 9v battery PP3 or equivalent (not included).

Expect...

Optically worked faces

Ground edges

Refractive index: 1.52.

Focal Length: 50mm

Diameter: 50mm

Power: +20D

Sold in packs of 5

Dimensions: +20D

Optically worked faces

Ground edges

Refractive index: 1.52.

Focal Length: 150mm

Diameter: 50mm

Power: +10D

Sold in packs of 5

Dimensions: +6.6D

Palm-sized, hollow metallic ball with a manometer connected to it for demonstrating change of pressure in a closed volume of air when heated or cooled. Immersing the ball in a water bath at a specific temperature allows the relationship between pressure and temperature of the enclosed air to be ...

Developed in conjunction with the National Energy Foundation, the wind turbine kit offers a valuable insight into the production of electricity from wind energy. The kit offers the advantage of being able to measure electrical energy produced directly on a meter or using a datalogger.

Usin...

The thermal conductivity set comprises four metal bars held firmly together in parallel with a plastic rigid carrier.

The metals are copper, aluminium, brass and steel.

Each bar has a Liquid Crystal temperature sensitive strip attached and its conductivity value marked on the back o...

The Materials Collection comprises of twenty magnetic and non-magnetic materials:

The set includes:

Iron, steel, aluminium, wood, polythene, brass, rubber, copper, wool, nylon, cork, lead, zinc, carbon, glass, PVC, cotton, cardboard, perspex and nickel.

Excellent quality nickel-plated, plain shank tuning forks with frequency marked on. Set of 8 containing: A 426Hz, B 480Hz, C 256Hz, C 512Hz, D 288Hz, E 320Hz, F 341Hz and G 384Hz. Supplied in a wooden box for storage.

These spring balances are designed to measure weight and horizontal or vertical forces. Each spring balance is calibrated in grams on 1 side and newtons on the other in clear, easy to read markings. Set contains 250 g (2.5 newton), 500 g (5 newton), 1 kg (10 newton) 2 kg (20 newton), 3 kg (30 ne...

Transistorised type with 100mm flying leads. Frequency 420Hz approx. Current: 17mA max. Output: 83dB at 0.2m.

Dimensions: 23 x 17 x 15mm.

A miniature push button switch with a momentary push-to-make single pole action. Connections are by solder tags, and the switch may be mounted on a panel having a 7mm diameter hole via its threaded bush and nut. Maximum rating: 250V a.c., 0.5A. Button diameter: 6mm.

Dimensions:...

A range of low voltage d.c. electric motors suitable for model making and similar applications. All have cylindrical bodies with either white metal or phosphor bronze bearings. Electrical connection is by solder tags on the rear end clips. EACH.

Voltage range: 1.5 - 3V

Torque g/cm...

A range of low voltage d.c. electric motors suitable for model making and similar applications. All have cylindrical bodies with either white metal or phosphor bronze bearings. Electrical connection is by solder tags on the rear end clips. EACH.

Voltage range: 3-6V

Torque g/com...

Push Switch for BEK.

Single cell holder with 4mm sockets, ingeniously moulded so a cell can only be inserted the correct way around.

Takes one D cell.

For use with either Basic Electricity Kit.

Use the meter to measure the current through the Helmholtz Coils. The attachments are colour-coded and their sockets are arranged to help students grasp the concepts of shunts and multipliers.

Input impedance: 100kΩ

Resolution: 0.01

Accuracy: ±2%

Our popular UNILAB Light Gate is fully protected against incorrect connection of signal or power and supplies from 9 to 25V a.c or d.c. can be used.

A signal LED indicates that the unit is functioning correctly when obstructed. The unit is compatible with all of our timing devices such as&...

Pack of 10.

Compact 3½ digit LCD digital manual range multimeter, ideal for educational use 20 ranges including transistor test, 10A current test, audible continuity test, diode test, and square wave 50Hz frequency test.

Overload protection on all ranges except 10A DC current range. Low batter...

A ventilated Ray Optics box open fronted with extended sides finned externally for heat dissipation and vertical internal grooves to accommodate a slit plate and cylindrical lens. It includes a 12 volt, 21 watts lamp with one meter of twin flex ending in 4mm connectors, a single and triple slit,...

Your friends will be amazed when you simply balance this pocket-money Pteranodon on the tip of your finger. It looks so impossible they will think it is a magic trick! The Amazing Balancing Pteranodon appears to defy gravity but is actually very easy to balance on your finger, nose, pen, bookshe...

This set enables a comprehensive range of experimental investigations into the characteristics and properties of radioactive emission to be carried out.

The kit consists of the following items:

• Radioactivity bench with accessories

• Set of absorbers

Electric paint provides a great platform for discovering, laying, repairing and designing with electronics. Electric Paint can be used as both a liquid wire and a conductive adhesive or cold solder.

This handy pen allows you to draw circuits and attach small components to your projects. E...

A moving coil voltmeter, suitable only for d.c. voltages. Sensitivity 1000Ω/V nominal. Ranges 5V and 15V.

A centre zero galvanometer 50μA - 0 - 50μA graduated every 2μA.

The resistance of the meter is about 1000?.