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Light Guide Demonstrator, S Shaped Bar. 220mm X 20mm X 20mm, For Use With Ray Box, 220mm Long, Bottom Of Bar Is White To Aid Visibility, It Helps Students To Understand The Principles Of Optical Communications. The Bottom Of The Bar Is White To Aid Visibility.

Ray Box Comes With Single And Triple Slit Plate, A Ventilated Lamp House Having An Open Front With Extended Sides Finned Externally For Heat Dissipation And Vertical Internal Grooves To Accommodate A Slit Plate And Cylindrical Lens. It Has A Light Source Comprising 12 Volts, 21 Watts Lamps

Ray Box, Includes: (1) Ray Box, (2) Meter Of Flex, (2) 4mm Plugs, (1) 12V - 24W B15 Bulb, (1) Bulb Holder, (1) Slit Plate, (2) Aluminium Blanking Plates, Traditional Ray Box Has Three Openings, Two Of Which Can Be Used Simultaneously By Two Sets Of Pupils

Telescope Model Two Pvc Tubes, Mounted Co-Axially, Consists Of Two Pvc Tubes, Mounted Co-Axially Giving Adjustablelengths By Sliding One Within The Other. Dia. 50 mm And Mag. 5X.

Ray Optics Kit, Consisting Of 2 Lamps Of 12 V, 24 W And Stands, 1 Pair Of Housing Shields, 2 Combined Single And Triple Slit Plates, 2 Multiple Slit Combs, 2 Holders For Combs And Slit Plates, 4 Wooden Light Barriers, 4 Plano Cylindrical Lenses + 7 D, 2 Plano Cylindrical Lenses +10 D

Color Filter (Set Of 8) Plastic.

Mounted Color Filters; 7 Monochromatic And 1 Tri-Color.

Optical Bench, 1 Double Concave Lens, 1 Double Convex Lens, 1 Plano Convex Lens, 1 Plano Concave Lens, Screen With Gap, White Screen, Ground Glass Screen With Grame, Candle Holder, 5 Insert Poles, Alnico Track, Supporting Leg, Slide Block And Measuring Sc, Aluminium 42in

Spectrometer - Basic, Sturdy Metal And Includes An Adjustable Collimator Tube, Telescope, And Prism Stand, For Use In Elementary Schools, Measure The Angle Of Prisms Using The Law Of Reflection, Demonstrate Optics Phenomenon With A Diffraction Grating Or Measure The Wavelengths

Spectrometer Advanced, Prism Table: The Table Is Marked With Lines To Assist Placing The Prism With Respect To The Table Leveling Screws, Scale, Collimator, Telescope, Mass: 11 Kg.

Educational Diffraction Slide, For Demonstrating The Principle Of The Diffraction Grating And The Way In Which Its Properties Are Dependent Upon The Number Of Lines Per Unit Length. Comprises A Card Mount 90 X 40 mm Approximately With Three 16 X 9 mm Apertures

Polarizing Sheet, Mounted In Square Plastic Frame. Size 50 X 50 mm.

Set Of 6 Coloured Filters - Unmounted. Set Of 6 Coloured Filters, Unmounted Plastic Sheets Of Size 100 X 100 mm, Comprising Of 3 Primaries And 3 Secondaries Colours.

Power Pack For Use With Optical Bench As A Light Source. Operates On 6 - 12 Vac/Dc, 2 Amps.

Wave Form Helix, Steel Wire Close-Wounded Helix 20 mm Diameter, Closed Length 3 Meters Extending To Approx. 9 Meters Extended, With Looped Ends.

Wave Form Helix - 1.8 Mtr. Long.

Wave Form Helix,Slinky, Coil Diameter 7.5 Cm Length, 10 Cm Long When Closed, And Up To 3 Meters In Length When Fully Stretched.

Super Slinky With Stand, Ultimate Wave Form Helix With Wooden Stand - 20Cm Closed Height, Includes: (1) Ultimate Wave Form Helix, (1) Wooden Stand

Wave Apparatus - Plastic, Demonstrate Longitudinal And Transverse Waves, Advanced Apparatus Demonstrates Both Longitudinal And Transverse Wave Motions. Consisting Of A Number Of Eccentric Discs Supporting A Series Of Metal Rods Revolving On A Handle

Tuning Forks Set Of 8 Steel, For Physics Experiments, Includes: (8) Tuning Forks Nickel-Plated, Plain Shanks, With Frequency Marked, C (256), D (288), E (320), F (341), G (384), A (426), B (480), C (512). Set Supplied In Wooden Case.

Tuning Fork Octave, 8Pk C (256Hz) - C (512Hz), Steel Tuning Forks For Physics Experiments, May Be +/- 5% Of Stated Frequency, Includes: (8) Tuning Forks, Nickel-Plated, Plain Shanks, With Frequency Marked, C (256), D (288), E (320), F (341), G (384), A (426), B (480), C (512)

Aluminum Tuning Forks, Set Of 8, Includes: (8) Tuning Forks, Best Quality Nickel-Plated, Plain Shanks, With Frequency Marked, C (256), D (288), E (320), F (341), G (384), A (426), B (480), C (512). Set Supplied In Wooden Case.

Tuning Fork Set Of 8 With Hammer, With Foam Lining For Easy Storage Of All Parts. Frequency Marked 256Hz, 288Hz, 320Hz, 341Hz, 384Hz, 426Hz, 480Hz & 512Hz. Complete With Hammer.

Pair Of Tuning Fork - Steel, Includes: (2) Tuning Forks With Bases, One Is Adjustable (1) Mallet, For Demonstrating The Production Of Beat Frequencies. Comprises Two Nickel Plated Forks A (440 Hz) Mounted On Individual Boxes

Stroboscope Hardboard. Stroboscope, A Hardboard Disc With Twelve 50 X 3 mm Slots And Finger Hold, Pivoted On A Ball Bearing Mount Which Also Acts As A Convenient Handle. Diameter Of Disc 255 mm

Organ Pipe Polished Wood, With Movable Piston Marked With The Chromatic Scale From C (512) To (1024), Overall Length When Fully Extended 880 mm May Be Used For Investing The Phenomenon Of Beats In Conjunction With A Second Pipe Of The Same Type.

Vibration Generator, Variable Frequency From 1 Hz To 300 Hz,Vibration Generator Provides The Electronically Controlled Vibrations To Generate The Tender Ripples. This Can Work On Square Wave Generator Of Amplitude Adjustable Upto 12V Max & Is Able To Deliver 15 Watts Of Power.

Synchronised Digital Ripple Wave Generator, Handy & Easy To Use & Can Be Operated With External Regulated Dc Power Supply Or With Built In Power Supply, Ery Unique Apparatus Which Provides The Synchronized Stroboscopic Light Flashes

Junior Magnet Kit, A Kit Of Magnets And Accessories For Science Experiments, Each Of Square Iron, Aluminium, Zinc And Copper Metal, 1 Horseshoe Magnet With Keeper, 100mm 2 Ceramic Bar Magnets 75 mm Long. 3 Ceramic Ring Magnets, 38 mm Dia, Face Polarised.2 Plotting Compasses

Magnetising Charger For Bar And Horseshoe Magnets, No Electricity Required.

Demonstration Electromagnet, Requires Power Supply, Copper Wire Is 23Swg - Diameter (0.61mm), Number Of Turns: 230, Resistance: 0.8 Ohm, Inductance: 1.6Mh, Voltage Supplied Through Those Connections Power The Electromagnet (Maximum Of 12V)

Lenz' Law - Open & Closed Loop, Simple, Economical Device, Constructed Of Cast Iron Base And Aluminum Ring, Used To Demonstrate The Induction Of An Magnetic Field, This Teaches Faraday'S Law Of Induction As Well As Lenz' Law.

Magnetic Field Demonstrator - Set Of 4 Plates, Each Plate Is 15.3Cm X 7.6Cm X 0.6Cm - 98 Chambers, 4 Transparent Plates To Demonstrate Magnet Fields, Chamber Containing An Iron Rod And Functioning Effectively As A Plottingcompass, Plates May Be Arranged In Various Ways

Magnetic Field Demonstration Plate - Large 250 X 250 mm, Comprising Of A Transparent Plate Having A Matrix Of Small Circular Chambers, Each Chamber Containing An Iron Rod And Functioning Independently With As A Plotting Compass

Solenoid Air Cored Diameter 50 mm 270 Turns Wire 1.25 mm In Diameter. Max. Current : 6A Power Supply On 2 Safety Sockets. Length 370 mm, Square Plaques At The Ends Of The Solenoid Have An Indentation Enabling To Easily And Immediately Position It On The Guiding-Support.

Solenoid Small, Inner Diameter Of 4.5 Cm And A Length Of 15 Cm, Wound With 700 Turns Of Insulated Copper Wire, Excellent For The Study Of Electricity And Magnetism Experimentsrequiring An External Magnetic Field

Basic Magnetic Field Chamber - 3.625in By 2.3125in Diameter, Dimensions: Height: 3.625in, Outside Diameter: 2.3125in,Inside Diameter: 0.625in, Magnet Is Included, Insert A Bar Magnet, Up To Three-Quarters Of An Inch In Diameter

Circular Coil On Base, Coil With 94 Turns Of 1 mm Dia, Mounted On A Plastic Base, And Surrounds A Plastic Sheet On Which Iron Fillings Can Be Placed. Used To Observe Static Magnetic Fields Generated By A Constant Flowing Current,For Demonstration On Static Magnetic Fields.

Basic Plotting Compass, 16mm, Glass Face, Aluminum Case, Diameter: 0.6 In. (1.3Cm), One Individual Unit, Provide A Simple, Teachable Way To Demonstrate Magnetic Fields In Class. Simple Use And Easy Readability Make It Straight-Forward For Students To Map Magnetic Fields

Plotting Compass, 100mm, One Glass Face Only, In Aluminium Case, With Dial Marked With Principal Points Of The 100 mm Compass

Pocket Compass, Aluminium, 45mm Diameter, Conomy Compass Comes Complete In An Aluminum Case.

Pocket Compass, Brass 45 mm Dia, Marked In Degree With N & S Indications.

Demonstration Compass, 10Cm Long Magnetic Needle On Compass Map, Easy To Demonstrate The Cardinal Points Of A Compass And Determine All Their Directions.

Demonstration Induction Coil, Heavy Gauge Enamelled Copper Wire Wound On Former 110 X 30 mm. Secondary Coil Of Fine Enamelled Copper Wire On Former 120 X 82 mm. Both Coils Fitted With 4 mm Sockets, With Primary Of Heavy Gauge Enamelled Copper Wire

Barlow'S Wheel, Requires Aa Batters. Barlow'S Wheel, Equipped With Neodinium-Ironboron Magnets That Generate A Strong Magnetic Field Over The Wheel That Is Therefore Set On Motion When Crossed By Currents. Requires Aa Batters, Discover Lorentz Force Without Using Mercury

Eddy Current Demonstration, Demonstrate The Amazing Lenz s Law With This Apparatus. Consists Two Masses Drop Down A 33Cm Copper Tube. One Is Steel, One Is A Neodymium Magnet, Two Masses Drop Down A 33Cm Copper Tube. One Is Steel, One Is A Neodymium Magnet

Two Spare Gilley Coils, For Magnetic Induction, Inner Diameter: 1.5Cm, 4.5Cm Outer Diameter.

Belts For Wimshurst Mach.

Friction Rod Ebonite, Used To Study Static And Friction, 30Cm Length Rod - 12Mm In Diameter.

Pith Ball Spare Pack, Used For Electroscope Experiment.

Electroscope Kit, Consists Pair Of Flask Type Electroscope, Two Each Discs And Terminals, One Faraday' S Ice Pail. Spare Foil Leaf Pairs Included, For Experiments Of Electroscope And Other Related Studies Such As Electrostatic Induction, The Nature Of Charge In A Body

Leyden Jar, Designed For Classroom Demonstrations, With A Durable Inner And Outer Plate, A Plastic Dielectric, And Instructions. The Inner Plate Has A Hook And Ball Attached Which Makes It Easy To Charge, Use This Equipment To Duplicate Many Classic Static Electricity Experiments

Electroscope - Gold Leaf, A Glass Conical Flask, Brass Rod With Disc And Gold Leaf Attached Supported Rubber Cork.

Electroscope Needle, Great For Hands On Experience With Electrostatic Principles In Physics Classrooms And Labs. The Sheet Metal Walls Of The Electroscope Are Attached To A Plastic Base And Top. Front Glass Window Slides Up To Allow Insertion Of Ionizing Material In Chamber

Demonstration Electroscope, For The Demonstration Of Static Potentials. Available With Charging Ball Plus A Set Of Condenser Plates With Insulated Rod. Ring Diameter 150 Mm

Accessories For Electrostatic Kit To Be Used With Van De Graaff And Wimshurt Machines, 7 Piece.

Van De Graaff Generator, Hand Crank, Hand Operated, Metal Sphere Of Dia. 25Cm Insulated By A Plastic Column Supporting The Pulley Assembly. Complete With Accessories.

Van De Graaff Generator - Motor Driven, Up To 200Kv Depending On Conditions With Up To A 60Mm Spark, Uses 110 Or 220V Ac 150Mm Diameter Sphere, Acrylic Shaft Allows For Full Visibility, Connections : 4Mm Sockets In Dome And Base, Tracking : Belt-Tracking

Complete Accessories For Van De Graaff And Wimshurt Machines, May Be Fixed In 4 Mm. Sockets In Top Of Sphere. Pillar With Suspended Metallised Sphere, Faraday'S Pail. Perspex Cylinder With Metal Caps And 4 Metallised Spheres

Electrodes For Student Cell, Aluminium, For Student'S Demonstration Cell, Very High Quality Electrodes For Use With Cells. Size 100 X 19 mm

Electrodes For Student Cell, Brass, For Student'S Demonstration Cell, Very High Quality Electrodes For Use With Cells. Size 100 X 19 mm

Electrodes For Student Cell, Carbon Rod, For Student'S Demonstration Cell, Very High Quality Electrodes For Use With Cells. Size 100 X 19 mm

Electrodes For Student Cell, Zinc, For Student'S Demonstration Cell, Very High Quality Electrodes For Use With Cells. Size 100 X 19 mm

Electrodes For Student Cell, Iron, For Student'S Demonstration Cell, Very High Quality Electrodes For Use With Cells. Size 100 X 19 mm

Cell Holder For Two D-Size Batteries, Fitted On Base(Terminals) With 4 Mm Sockets.

Variable Battery Power Supply, Holds Up To (4) D Cells - 1.5, 3, 4.5, Or 6 Volts Dc Power With 4Mm Sockets - Can Be Series Or Parallel, Perfect For Electronics, Physics, Or Even Biology Experiments

Battery Eliminator 2 Amp. Battery Eliminator, Plugs Into A Standard Electrical Outlet, 120 V Ac, 60 Hz. 2 Amp Max Output. Battery Eliminator Has Dimensions Of 7 X 5 X 4 Inches, Designed To Be Safe And Reliable Source Of Low Voltage, Dc Power. It Is Ideal For Use In Classrooms And Substitutes

Demonstration Transformer, Fitted On Base, With Indicator, Input 230 Volts 50Hz And Output 4, 6, 12, 24 Volt 1 A, Step Down

Contact Key - Double.

Plug Switch - One Way Two Brass Blocks With 4mm Insulated Terminals With Tapered Plug With A Fluted Top Are Mounted On A Wooden Base, An Accurately Tapered Plug With A Fluted Top Fits Into The Tapered Hole Between The Two Blocks, Ensuring Very Low Contact Resistance.

Plug Switch - Two Way Three Brass Blocks With 4mm Insulated Terminals With Tapered Plug With A Fluted Top Are Mounted On A Molded Base, With Three Brass Blocks, Each With A 4 mm Insulated Terminals And Two Standard Tapered Plugs To Fit The Two Holes Between The Blocks.

Resistance Substitution Board 33 Ohms - 10M Ohms, Extremely Useful For All Circuit Applications. Great For Electronics Classrooms Or Labs, Or For Use In Circuits Under Design Or In Testing Conditions, Board Dimensions Are 5 X 3.5 X 2 Inches.

Knife Switch, Single Pole - Single Throw, Durable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.

Knife Switch, Single Pole - Double Throw, Single Pole - Double Throwdurable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.

Knife Switch, Double Pole - Single Throw, Double Pole - Single Throwdurable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.

Knife Switch, Double Pole - Double Throw, Double Pole - Double Throwdurable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.

Lead-Free Density Blocks. Aluminum, Brass, Copper, Brass. 3.2Cm Cubes, With Hooks.

Flash Lamp Bulbs - Round, 1.25 Volts, Suitable For Flash Lamps, Spotlights And Panel Lamps Etc, Round, 1.25 Volts With M.E.S. Cap,

Flash Lamp Bulbs - Round, 3.5 Volts, Round, 3.5 Volts With M.E.S. Cap, Suitable For Flash Lamps, Spotlights And Panel Lamps Etc.

Flash Lamp Bulbs - Round, 6 Volts, With M.E.S. Cap, Suitable For Flash Lamps, Spotlights And Panel Lamps Etc

Light Emitting Diode (Led) 5mm. Light Emitting Diode (Led), Red, 5 mm Standard High Quality Red Led Indicators With Diffused Lens. Maximum Voltage 3.0 V D.C. Pcb Or Panel Mount.

Light Emitting Diode (Led), Green. Light Emitting Diode (Led), Green, 5 mm Standard High Quality Green Led Indicators With Diffused Lens. Maximum Voltage 3.0 V D.C. Pcb Or Panel Mount

Buzzer On Base, Simple Circuit Modules Can Be Used To Construct Simple Circuits Of The Type Normally Implemented On, For Example A Worcester Circuit Board. Very Useful For Younger Pupils To Learn More Applications Of Circuits Anddevices. The Modules Are Having 4mm Plug Connections.

Economy Electricity Kit, A Basic Assortment Of Circuitcomponents Including:L10 Pcs. Mes Lamp Holdersl10 Pcs. Mes Bulbl1 Pc. 6V Buzzer With Connecting Leadsl1 Pc. Electric Motor, 3-6 Vl5 Pcs. Dpdt Slide Switchl1 Pcs. 1.5V Cell Holderl10 Pcs. Crocodile Leads

Heat Transfer Kit Class. Heat Transfer Kit, Class, Contains 15 Sets Each Of: 2 Styrofoam Calorimeters With Lids, Aluminum Heat Transfer Bar, Low Range Thermometer (-40 - 50 Deg C), High Range Thermometer (-30 - 110 Deg C), With Two Thermometers Specifically Designed For Hot And Cold Temperatures.

Ice Melting Plates With Rims, 1 Aluminum Plate, 1 Plastic Foam Plate, Challenges Student'S Preconceived Notions On Concepts Of Heat And Thermodynamcs. The Melting Plates Display Quizzical Properties When An Ice Cube Melts On Each Plate, Demo For Conductivity And Heat Transfer.

Square Friction Cube With Hook, 4 Surfaces, 2 Inch, Provides Four Surfaces For Exploration Into The Force Of Friction. Each Side Of The 2in Cube Provides A Surface (Wood, Paper, Vinyl, Sandpaper) With A Different Coefficient Of Friction

Hand Held Centripetal Force Kit, Kit Includes: Plastic Handle, Rubber Stopper, String, 20 Washers, 2 Paper Clips, Provides The Necessary Tools To Discover Properties Of Rotational Dynamics. A Rubber Stopper Swings Around On The End Of A String Counter Balanced

Decade Resistance Box - 7 Decade, Portable Resistance Box, Built In Solid Metallic Body. Total Vol. 11.111110 Mega Ohms, It Is Built In Solid Metallic Body.Total Value As Well As Individual Values Are Available At All Levels, +/- 1% Tolerance & Are Of 2 Watts

Decade Resistance Box - 4 Decade, Standard Decade Resistance Box, Up To A Total Of 11, 110 Ohms, Resistance Resolution Is At 1, 10, 100, And 1000 Ohms, Decade Resistance Substitution Box Provides 4 Decade Ranges. Each Decade Is Selected With A Rotary Switch

Capacitance Substitution Box, Capacitor Box, Using 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

Battery Cell Holder - D Size - Stackable.

Rheostats 0.3 Amp. Rheostats - Standard, Resistance 1600 Ohms, Max. Current 0.3 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

Rheostats 0.9Amp. Rheostats - Standard, Resistance 300 Ohms, Max. Current 0.9 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

Rheostats 1.4Amp. Rheostats - Standard, Resistance 135 Ohms, Max. Current 1.4 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

Rheostats 2.3Amp. Rheostats - Standard, Resistance 55 Ohms, Max. Current 2.3 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

Rheostats 4Amp. Rheostats - Standard, Resistance 16 Ohms, Max. Current 4 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

Rheostats 5Amp. Rheostats - Standard, Resistance 8.5 Ohms, Max. Current 5 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

Rheostats 9Amp. Rheostats - Standard, Resistance 2.5 Ohms, Max. Current 9 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

Rheostats 1.2Amp. Rheostats - Standard, Resistance 280 Ohms, Max. Current 1.2 Amp, Heavily Oxidized Constantan (Copper-Nickel Alloy) Wire On A Vitreous Enameled Steel Tube, 2;4 mm Terminal Posts Which Are Fitted To Facilitate External Connection Conventional 4 mm Plug, Phosphor Bronze

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