The Capacitor Box uses 1 rotary dial with 12 steps. Various capacitors are selected one by one. Useful for general purpose electronic work.

The unit has an easily selectable range of 12 preferred capacitors from 100 pF to 1 mFd.

The individual values are:

• 100 pF;
• ...

Two crocodile clips (with sleeves which accept 4mm plugs) mounted on a 90mm length of tough plastic channel. Useful for holding components such as resistors; diodes etc.

• Pack of 8

A 75mm diameter; circular loudspeaker of 8 Ohm resistance.

Contains a high flux ceramic magnet of nominal power rating 5W.

Mounted in a rectangular plastic case and with two 4mm sockets for connection.

Despite its relatively small size this unit will provide a useful level of so...

The Alpha Electronics Physics System has been designed to incorporate electronic applications into Physics lessons. The various boards offer versatility and cover a wide range of topics.

• Spare central yellow terminals for linking Alpha boards together.

The Philip Harris range of digital meters have been designed to provide accurate; high quality instruments for education applications. The design of the meters; including the positioning and identification of the 4mm sockets and graphics on the front panel; ease the conceptual jump from circuit d...

The Philip Harris range of digital meters have been designed to provide accurate; high quality instruments for education applications. The design of the meters; including the positioning and identification of the 4mm sockets and graphics on the front panel; ease the conceptual jump from circuit ...

The Philip Harris range of digital meters have been designed to provide accurate; high quality instruments for education applications. The design of the meters; including the positioning and identification of the 4mm sockets and graphics on the front panel; ease the conceptual jump from circuit d...

This system enables the basic properties of optical fibres to be investigated and the ideas then extended to demonstration of some of the principal scientific and commercial uses. The low-cost plastic fibre may be cut to any desired length with a sharp knife and does not require any special termi...

A general purpose scaler-timer suitable for radioactivity counting utilising Geiger-Muller tubes; and as a general purpose millisecond digital timing device with manual or electronic triggering. The bright L.E.D. has six digits; 24mm high; making it suitable for individual use or for class demon...

The Philip Harris range of digital meters have been designed to provide accurate; high quality instruments for education applications. The design of the meters; including the positioning and identification of the 4mm sockets and graphics on the front panel; ease the conceptual jump from circuit ...

A versatile Digicounter suitable for timing; frequency; period and radioactivity measurement. A built-in high stability crystal controlled oscillator ensures a typical accuracy of 0.005% on all measuring ranges. The period measurement and display function enables very low frequencies to be meas...

The Philip Harris range of digital meters have been designed to provide accurate; high quality instruments for education applications. The design of the meters; including the positioning and identification of the 4mm sockets and graphics on the front panel; ease the conceptual jump from circuit d...

If something is spinning; oscillating or vibrating very fast; how can you see it? A stroboscope gives the illusion of slowing down; freezing; or even reversing the action.

This robust; light-weight stroboscope is ideal for classroom work with vibrations and waves. It features a bright xen...

This unit is used to demonstrate the reversible series of changes from electrical energy (battery or power pack); to mechanical energy (motor); to potential energy (stored in the spring); back to mechanical energy (the spring driving the motor/generator); finally returning to electrical energy to...

A stimulating addition to any lesson on energy conversion; electricity or magnetism.

For demonstrating the variation of electrical output of a dynamo with its rate of rotation and the way in which the electrical load connected to it affects the amount of work required to drive it. The doubl...

To demonstrate the cycle of energy change from electrical; to mechanical to potential (stored in the raised mass); back to mechanical and finally electrical energy used to light the lamp.

The shaft extends 50mm beyond the end of the baseboard and is provided with a pair of collars to form ...

The Vibration Generator gives mechanical oscillations when fed by signals from an oscillator/A.F. amplifier (e.g. a Power Signal Generator - B8G85793).

The frequency response encompasses the whole of the audio spectrum and beyond. Electrical input is made via two 4mm sockets and the mechani...

This Resistance Unit is based on a high stability metal film element. It offers improved accuracy and robustness; and is less expensive than traditional resistance coils.

Features:

• Accuracy: 1%
• Resistance: 1O
• Max (V): 3.0
• Max (mA): 150

Each so...

A simple and easy to use kit for work on momentum; collisions and the coefficient of restitution as well as conservation of energy.

The kit consists two bogies having one side with Hook & Loop pad and other side with spring.

The collision track measures 1.2M in length and is gradu...

This Resistance Unit is based on a high stability metal film element. It offers improved accuracy and robustness; and is less expensive than traditional resistance coils.

Features:

• Accuracy: 1%
• Resistance: 5O
• Max (V): 1.6
• Max (mA): 31

Each sold...