Electricity & Electromagnetism

Precision Resistance Unit Film 5 Ohm

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

RRP£18.87

Save50%

Your Price £9.44

Back in stock shortly, please ask for due date

HE1007188

Push Button Switch

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

RRP£3.03

Save47%

Your Price £1.60

Back in stock shortly, please ask for due date

HE1008336

Push Button Switches P10

Pack of 10 Mounted Bell Pushes for use with the Worcester Circuit Board (B8R06035).

RRP£39.39

Save50%

Your Price £19.70

Back in stock shortly, please ask for due date

HE1008355

Push Switch

BEK Push Switch mounted on a yellow baseplate with sockets to accommodate the connection of 4mm plug leads. Excellent for general circuit work.

Your Price £5.45

Back in stock shortly, please ask for due date

HE1006973

Rectangular Magnets Alnico 50x15x10mm

Alnico Rectangular Bar Magnets Dimensions: 50mm x 15mm x 10mm Supplied in pairs with keepers

RRP£26.07

Save50%

Your Price £13.04

Back in stock shortly, please ask for due date

HE1006975

Rectangular Magnets Alnico 75x15x10mm

Alnico Rectangular Bar Magnets Dimensions: 75mm x 15mm x 10mm Supplied in pairs with keepers

RRP£36.42

Save50%

Your Price £18.21

Back in stock shortly, please ask for due date

HE1008356

Resistance Substitution Box

This resistance substitution box has 12 different values: 100W, 220W, 470W, 1KW, 2.2KW, 4.7KW, 10KW, 22KW, 47KW 100KW, 220KW, 470KW. All values are in + 1% tolerance and all the

RRP£62.79

Save50%

Your Price £31.40

Back in stock shortly, please ask for due date

HE1010308

Rheostat Coil 11 Ohm Bek

Replacement Rheostat Coil for the BEK Rheostat (B8H30646 - not included). 11Ω Coil. Replacement 15Ω Coil is also available (B8L01053). 

RRP£8.25

Save50%

Your Price £4.13

Back in stock shortly, please ask for due date

HE1010350

Rheostat Coil Only 15 Ohm Bek

Replacement Rheostat Coil for the BEK Rheostat (B8H30646 - not included). 15Ω Coil. Replacement 11Ω Coil is also available (B8H30622). 

RRP£7.98

Save50%

Your Price £3.99

Back in stock shortly, please ask for due date

HE1008235

Rheostat Extended 1200 Ohm

An extended range of rheostats differing in resistance and dimensions from the standard range but in other respects having the same specification.Rheostat,

RRP£91.68

Save47%

Your Price £48.79

Back in stock shortly, please ask for due date

HE1003120

Rheostat variable resistor

BEK Variable Rheostat mounted on a yellow baseplate with sockets to accommodate the connection of 4mm plug leads. Excellent for general circuit work.Vary the current in a

Your Price £13.70

Back in stock shortly, please ask for due date

HE1003048

Set Of Metal Strips

A set of twelve metal strips for magnetism work. Each stamped with a key letter for identification. Ideal for experiments to demonstrate magnetic properties and

RRP£10.98

Save13%

Your Price £9.52

Back in stock shortly, please ask for due date

HE1878021

Spare Belt For Whimshurst

Spare belts for the current model of Wimshurst Machine (B8A48215). Smaller Belt: Circumference - 508mm (20 inches), Thickness - 3.3mm (0.13 inches) Larger Belt:

RRP£22.65

Save50%

Your Price £11.33

Back in stock shortly, please ask for due date

HE1002963

Switch - Slide Type

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

RRP£2.76

Save30%

Your Price £1.93

Back in stock shortly, please ask for due date

HE1008313

Transformer Coil 120 120 Turns

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values, with and without a complete C-core, are shown in

RRP£110.04

Save50%

Your Price £55.02

Back in stock shortly, please ask for due date

HE1008312

Transformer Coil 1200 1200 Turn

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values, with and without a complete C-core, are shown in

RRP£107.97

Save50%

Your Price £53.99

Back in stock shortly, please ask for due date

HE1008311

Transformer Coil 500 125 Turns

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The approximate inductance values, with and without a complete C-core, are shown in

RRP£107.97

Save50%

Your Price £53.99

Back in stock shortly, please ask for due date

HE1008309

Transformer Coil 60 60 Turns

Silicon steel C-core and clip with a range of coils for use as inductors and transformers. The current ratings are based on 150A per square cm. The coils will run hot, but will

RRP£69.36

Save50%

Your Price £34.68

Back in stock shortly, please ask for due date

HE1003125

Universal Clip BEK

This BEK Universal Clip holds components and materials for investigation.Consists of 2 crocodile clips mounted on a yellow baseplate. Able to hold a wide variety of components.

RRP£8.52

Save50%

Your Price £4.26

Back in stock shortly, please ask for due date

HE1801121

Ut139b True Rms Digital Multimeter

UNI-T's UT139B is a True RMS Auto Range Digital Multimeter with 4000 display count and 1kHz bandwidth, featuring VFC, NCV, Max/Min/Rel measurements.UT139B digital

RRP£134.88

Save50%

Your Price £67.44

Back in stock shortly, please ask for due date

HP00052018

Volta Pile

This Volta Pile Apparatus is a fully functioning replica of Allesandro Volta's apparatus.The item is approximately  178mm (7") tall including the base. The

RRP£88.98

Save50%

Your Price £44.49

Back in stock shortly, please ask for due date