Description
Code: OPB3005
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
Code: OPB3005
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
Settings | Brass Small Bayonet Cap Batten Holders - Oval base remove | Planck's Constant LED Apparatus remove | BERT - Battery Electrical Resistance Tester remove | 12V 21W Small Bayonet Cap Radial Filament Lamp remove | Portable Appliance Tester & Checker - PATCH remove | Capacitance Substitution Box Class set of 15 remove |
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Name | Brass Small Bayonet Cap Batten Holders - Oval base remove | Planck's Constant LED Apparatus remove | BERT - Battery Electrical Resistance Tester remove | 12V 21W Small Bayonet Cap Radial Filament Lamp remove | Portable Appliance Tester & Checker - PATCH remove | Capacitance Substitution Box Class set of 15 remove |
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Description |
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
| Code: EPC7000
A multipurpose unit that allows the user to easily calculate Planck's constant, to measure the wavelength of coloured light, demonstrate colour light transmission through colour filters and show the diffraction patterns for various wavelengths of coloured light using a range of 4 LEDs (Red, Yellow, Green and Blue) covering the light range from deep blue at 470nm to near IR at 940nm.
| Code: EBR5010
BERT is a simple way of introducing electrical resistance and resistivity to a class. It consists of a circuit board that may be drawn on using the supplied pencil. Connecting the two sides of the board together by a pencil line gives a conducting track and the LED lights. The brightness of the LED gives an indication of the resistance of the path. Drawing the line thicker decreases the resistance, as does shortening the path. Resistances in parallel may be studied and a “volume control” simply made.
BERT may also be used to test various materials to see whether they are conductors or insulators. Liquids and pastes may also be tested. The conductivity of the class may be studied as well as how a switch works. When you are finished the pencil lines may be removed with the supplied eraser.
| Code: OPR1221
Pack of 10 12V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.
| Code: EPT5001
(Portable Appliance Tester and Checker). Performs electrical safety tests on portable appliances allowing compliance with EAWA regulations. The unit performs earth bond and insulation tests on both Class 1 and Class 2 appliances, extension leads, IEC and kettle leads etc. The unit is very simple to operate and gives clear, unambiguous pass/fail indications. Complete with test leads, instructions, pass and fail labels, a Tester's Certificate of Inspection and is fitted with moulded mains plug.
| Code: IPC-5865-X
Class set of 15 Capacitance Substitution Boxes. The IPC Capacitance Substitution Box (IPC-5861-X) provides the easily selection of 12 preferred value capacitors, ranging from 100pF to 0.47µF.
The values range from: 100pF, 220pF, 470pF, 1nF, 2n2, 4n7, 10nF, 22nF, 47nF, 0.1µF, 0.22µF and 0.47µF. All the capacitors offer a maximum voltage rating of 50V (AC or DC), with actual capacitance value tolerances of ±5% to ±10%. The unit is housed in a robust ABS plastic case with rotary selector switch and a pair of 4mm connection sockets.
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Content | Code: OPB3005
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
| Box mounted with 5 x 4mm sockets for attachment to an ammeter or voltmeter to display measurements. Monitoring the voltage of each LED a graph of energy input as a function of light frequency emitted can be measured with an approximate value of Plank's constant calculated.
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A stunningly effective way of teaching the basics of electrical resistance.
The kit comprises of:
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Pack of 10 12V 21W Small Bayonet Cap (SBC) Radial Filament Lamps.
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A simple to use PAT machine that allows the user to perform Class1 and Class 2 insulation tests, earth bond tests at two different current levels and extension lead tests. The compact unit clearly displays the results via coloured LEDs. A single push button initiates all the tests in a 5-second cycle.
•Class 1 Earth Bond test
•Class 1 and Class 2 Electrical Insulation test
•Mains switch and circuitry test
•Extension Lead test
•IEC lead test
•Results are displayed by coloured LEDs. Timed test period.
Comes complete with 100 pass labels, 50 fail labels, Earth Bond Test lead, Extension lead test lead and full instructions including sample inspection certificate.
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Description : Capacitance Substitution Box
Part Number : IPC-5861-X
Electrical Supply : 50VAC/DC Maximum
Dimensions : 75 x 100 x 40mm
Mass : 0.15kg
Capacitance Tolerance : ±5% to ±10%
Electrical Connections : 4mm Sockets
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Additional information |