Brass Small Bayonet Cap Batten Holders – Oval base

Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.

Description

Code: OPB3005

Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.

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SettingsBrass Small Bayonet Cap Batten Holders - Oval base removeLamp Brightness Experiment removeNational Grid Pylons Only removeBERT - Battery Electrical Resistance Tester removeIrwin De-Mountable Transformer removeDual Regulated PSU remove
NameBrass Small Bayonet Cap Batten Holders - Oval base removeLamp Brightness Experiment removeNational Grid Pylons Only removeBERT - Battery Electrical Resistance Tester removeIrwin De-Mountable Transformer removeDual Regulated PSU remove
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Description
Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.

Code: ELB8000

Students often think that the brightness of a lamp is only dependent on the current flowing through it. The unit allows the teacher to safely switch a 12V lamp in series with a mains lamp and study the current flow through them.  
Our additional Pylons pack contains 5 thick card sheets which once cut-out produces 5 pylons to be used in conjunction with our National Grid Kit to give your pupils a clearer explanation on how the experiment works.

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.
By connecting an ac power source to one of the coils and reading the voltage from the other coil transformer action (either step up or step down) may be readily demonstrated. The efficiency of the transformer may be studied –does the efficiency change if the laminate top is not firmly fixed? What happens if it is not present? Other more esoteric effects such as Magnetostriction may also be studied.

Code: IPC-0572-P

Designed for use with electronic modules, transistors, amplifiers etc. (IPC-0572-P). where the current required is not more than 1A, this power supply provides a smoothed and regulated DC output voltage with a ripple typically less than 50mV. Output up to 15VDC positive and negative (with respect to zero) in 5 stepped ranges: 5, 6, 9, 12 and 15VDC. The outputs are from three 4mm sockets: positive, zero and negative, colour coded red, blue and black respectively. The outputs are switched by means of a rotating knob. Overload and short circuit protection is built in. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish. 
Content

Code: OPB3005

Class Packs of Brass SBC (Small Bayonet Cap) round lamp holders with an oval base.
This includes kit includes the use of a safety mains lamp socket, which has a built in a switching system that only allows it to be switched on when a lamp is inserted.  We have also included two switches, which must be pressed simultaneously to route the mains current through the low voltage lamp. Furthermore, the switches are sited at opposite ends of the case, requiring two hands to operate them.  However, it must be appreciated that you are working with potentially lethal voltages and currents and therefore extra care should be taken.
  • Supplied with 1 x 240V 100W lamp and 1 x 12V 5W lamp and mains power lead.

Code: ENG1015

Our additional Pylons pack contains 5 thick card sheets which once cut-out produces 5 pylons to be used in conjunction with our National Grid Kit to give your pupils a clearer explanation on how the experiment works.
A stunningly effective way of teaching the basics of electrical resistance. The kit comprises of: 
  • 1 x BERT circuit board
  • 1 x PP3 battery
  • 1 x 3B pencil
  • 1 x crocodile clip connecting lead
  • 1 x eraser
  • 1 x full set of teaching notes.

Code: L1017

A demountable transformer kit is an ideal way to demonstrate transformer action.  The kit comprises three coils, one with 300 turns, one with 600 turns and one with 1200 turns. These slide onto a laminated steel frame to form several possible transformer configurations.
Description: Dual Regulated PSU Part Number: IPC-0572-P Electrical Supply: 220-240VAC, 50-60Hz Dimensions: 179 x 190 x 85mm overall Mass: 2.3kg DC Output Voltage Range: 5, 6, 9, 12 and 15VDC (both negative and positive) Maximum DC Output Current: 1A
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