Products

For making / breaking of Low voltage electrical circuits, molded plastic base with plated spring metal contacts and screw connectors.

Specially designed lamp house and transformer for operating different types of spectral lamps that ensures almost immediate striking of the Spectral lamps no sooner they are switched ON and provides a steady light output of high intensity. Transformer encased in a two part aluminium extrusion with insulated plastics side supports for safety having overall dimension of about 230 x 165 x 115mm (LxWxH). Plastic side supports have holes for proper inside ventilation. Provision for mounting a support rod, about 50cm in length, from the top of the transformer casing for holding lamp house makes the apparatus a convenient self-contained assembly. Rod projects more than 40cm above the casing, and provides convenient vertical adjustment in the lamp house position. Lamp house comprises a cylindrical sheet metal enclosure closed at one end with a circular aperture for lamp output. ES Cap type porcelain lamp holder located on inner side of the closed end is used for mounting lamps and provides adequate insulation and safety to the user. It is connected to the transformer through a three-core lead. One side open lamp house is located on top while use to permit uninhibited ventilation to the lamp. It has auto leak transformer operating on AC mains input of 230? 10% volts, 50/60Hz, with fused input protection and power rating of 90W. The transformer has an excessively high leakage reactance to achieve highly drooping current-voltage characteristics, making the secondary output automatically drop from about 470V at no load, regulating the current to 0.9A at the desired voltage to obtain full luminous output from the spectral lamps.

Specifications : Dimensions: approx. 25 x 18 x 45 cm. Laplace Apparatus shows the dramatic effect of displacement of a tensioned conductor in a magnetic field. LAWS & PRINCIPLES INVESTIGATED : • Laplace’s Law • Lorentz’s Force. COMPONENTS : • Laplace Apparatus Stand • U-Shaped magnet.

Specifications : Size: 20 x 15 x 20 cm – Weight: approx. 1 kg – Mounted on base. A classical instrument for measure static charges. Simple and functional, Altay’s Leaf Electroscope allows us to measure the amount of excessive electric charges of one sign over the other. Place a dielectric material to induce or bank charges on top of the electroscope box and observe a permanent or temporary displacement of the thin metallic leaf from the vertical metal rod. If you introduce a charge on the metal cap of the electroscope, you will see the displacement of the leaf. LAWS & PRINCIPLES INVESTIGATED : • Electrostatic charge measure.

Useful for intermittent use. It consists of a zinc rod of 12. 5mm diameter and a charged porous pot 150x60mm [height x diameter), with terminals, having EMF of about 1.4V

Useful tool in optical benches or other optical experiments for securely holding different sizes and types of lenses and mirrors.

Useful tool in optical benches or other optical experiments for securely holding different sizes and types of lenses and mirrors.

Useful tool in optical benches or other optical experiments for securely holding different sizes and types of lenses and mirrors.

To hold lens or mirror of 50mm diameter. V-groove in centre of a U-shaped holder, mounted on metal rod attached vertically to a base that can be placed onto standard optical benches.

V-shaped sheet metal arms with groves to locate lenses and mirrors from 25mm to 63mm diameter. The V-arms mounted vertically on a metal upright and can be fitted on optical bench mounts and stands

Useful tool in optical benches or other optical experiments for securely holding different sizes and types of lenses and mirrors. suitable for lenses or mirrors up to 75mm diameter. Comprising a wooden black, with a V-shaped groove to hold lenses or mirrors, mounted on a rectangular wooden base. With index mark engraved on either side of the base.

Set of 6 unmounted spherical lenses to explore the properties of different lenses, how they interact and affect light, concepts of reflection and refraction and combination of lenses. Made of optically worked plate glass with polished faces and ground edges. Includes one each of the following typical shapes - double convex, plano-convex, converging concave-convex . (convexo-concave), spanerging concave-convex (concavo-convex), double concave and plano-concave. Supplied in a velvet-lined box. Available in lens sizes (diameters).

Optically worked faces, ground edges, white glass, well polished, size 50 x 45mm.

Unmounted spherical lenses suitable for use with optical benches and for other studies in the optics. Spherical optically worked glass, with polished faces and ground edges.

Unmounted spherical lenses suitable for use with optical benches and for other studies in the optics. Spherical optically worked glass, with polished faces and ground edges.

Useful for qualitative experiments in thermal radiation. The results can also be quantified using a suitable radiation sensor facilitating investigation of radiation from different surfaces at a single temperature or radiation from a single surface at different temperatures [Stefan-Boltzman's Law). Comprises a sheet metal cube of sides about 130mm with opening at the top, for pouring in water and inserting a thermometer through a holed rubber stopper. One each of the four vertical faces is finished black, varnished, roughened and polished.

Useful for qualitative experiments in thermal radiation. The results can also be quantified using a suitable radiation sensor facilitating investigation of radiation from different surfaces at a single temperature or radiation from a single surface at different temperatures [Stefan-Boltzman's Law). Comprises a sheet metal cube of sides about 130mm with opening at the top, for pouring in water and inserting a thermometer through a holed rubber stopper. One each of the four vertical faces is finished black, varnished, roughened and polished.

Useful for qualitative experiments in thermal radiation. The results can also be quantified using a suitable radiation sensor facilitating investigation of radiation from different surfaces at a single temperature or radiation from a single surface at different temperatures [Stefan-Boltzman's Law). Comprises a sheet metal cube of sides about 130mm with opening at the top, for pouring in water and inserting a thermometer through a holed rubber stopper. One each of the four vertical faces is finished black, varnished, roughened and polished.

A wooden meter rule, graduated in millimeters and reading every centimeter used as lever with its fulcrum at it center. Fulcrum pivoted on a stand with the meter rule having holes 25mm apart all along length. Two hangers included with mounting pins that can be suspended from any of the holes on either side of fulcrum and are used for hanging the masses. Supplied with two mass hangers of 1 DOg each

Similar to LEVER KIT, WOODEN but beam of aluminium, with scratch?resistant epoxy coating

For investigation into the concept of moments, principle of lever and balances by a group of students using the items included in the kit. Comprises four beams of aluminium, with scratch-resistant epoxy coating, of size about 800 x 44 x 3mm marked every 38mm and a groove on the opposite surface across its center that acts as a fulcrum point. The beam is accurately balanced when its fulcrum point is located on any of the 4 fulcrums included. Supplied complete with 50 metal blanks of about 25mm square, 40 of aluminium and 10 of brass, each type having nearly equal mass.

For investigation into the concept of moments, principle of lever and balances by a group of upto 8 students using the items included in the kit. Comprises five wooden beams of size about 600x44x3mm marked every 38mm and a groove on the opposite surface across its center that acts as a fulcrum point. The wooden beam is accurately balanced when its fulcrum point is located on any of the 4 fulcrums included. Supplied complete with 50 metal blanks of about 25mm square, 40 of aluminium and 10 of brass.

For demonstration of the basic principle of capacitance and its use in storage of charge. Comprises an insulated plastic can along with a two metal conducting cans one inside the plastic vessel and the other outside, the dielectric plastic can providing complete insulation between the two metal cans. The inner can has a hook shaped metal rod terminating in a metal sphere at the top for charging I discharging the Leyden jar. The apparatus can be easily disassembled and once charged in assembled condition, retains its charge even after assembly and disassembly.

Specifications : Size: 14 x 14 x 30 cm – Weight: 1,5 kg – Mounted on base. Discover how pumps work. COMPONENTS : • Lift Pump Glasswork • Base • Basket. LAWS & PRINCIPLES INVESTIGATED : • Pump functioning • Concept of Pressure.

Working Model made of glass, similar to PHYSICS 0043 but mounted on wooden stand with trough for waterProvides convenient demonstration to a group of students

Both cylinder and piston provided with non-return float valves and a side tube for outlet.

Both cylinder and piston provided with non-return float valves and a side tube for outlet.

A complete kit providing comprehensive range of optical experiments involving reflection, refraction and colour mixing. The kit designed around a light box, all black, well ventilated, consisting of a light source 12V, 24W vertically straight filament lamp fitted in the holder through top of the box. Incorporates and adjustable collimating lens towards one end for producing convergent, spanergent, or parallel light beam; with other end having triple aperture system for colour mixing experiments. Adjustable hinged mirrors along both sides of the box facilitates colour mixing of all three beams. All apertures in the box are provided with vertical channels to hold slits plates and colour filters. A two core flexible connecting lead terminating in a pair of 4mm banana plugs connects it to low voltage AC power source. The complete optical set includes: Set of 5 Acrylic Blocks (Prisms) one each of rectangular, semi-circular, equilateral triangular - 60?x60?x60?, triangular - 90?x60?x 30? and right angled triangular - 90?x45?x45?. All blocks are free of optical imperfections and sharp edges. Set of 3 Acrylic Cylindrical Lenses one double concave, one double convex (both having same radius of curvature) and one thick double convex. Set of 3 mirrors : highly polished reflecting surfaces and free standing. Includes one each of parabolic, semi-circular and plane glass (mounted on stand) Set of 2 slit plates, black: one with three narrow slits and one narrow, and other with four narrow slits and one wide slit. Set of 8 colour filters, mounted: 3 primary colours - one each of red, blue and green, and 5 secondary colours - one each of cyan, violet, orange, yellow and magenta. Set of 8 Coloured Cards: one each of red, blue, green, violet, orange, cyan yellow and pink. All acrylic blocks and lenses, cylindrical and parabolic mirrors provided with finger grips, enabling their handling without touching their active optical surfaces. The bottoms of all refractive components are frosted to minimize internal reflections and revealing the path of light as it passes through. Supplied complete with a spare bulb with complete set housed in a moulded Styrofoam case for long life storage.

Comprises a semiconductor whose resistance varies with the intensity of light incident on it.

Emits light when specified electrical input is provided. A very low power consuming device that demonstrates the conversion of electrical energy to light energy.

For demonstration of the principle of lightening conductor, charge stored in spherical balls capacitors and its conduction to the earth. Comprises a plated metal sphere mounted on cast metal tripod base and another adjustable sphere supported above the first one on a metal strip on the vertical pillar attached to one of the legs of tripod base. The upper sphere has bent metal rod terminating in pointed shape with provision for adjusting the distance between the two spheres.

For exploring the concepts of mechanics involving linear motion on a near frictionless surface, such as acceleration, collisions (elastic / inelastic), explosions, conservation of momentum and simple harmonic motion etc. Air track, the principal component of the apparatus, comprises of specially designed, rugged, anodized, aluminium alloy extrusion providing a straight working length of 2m, is mounted on four cast metal feet with leveling screws, two on each side positioned along the length. Two rows of fine holes provided on each side all along the length of the track through which jets of the air emanate to form air cushion on which the vehicles float under virtually frictionless conditions. One end of the track has an air inlet tube connection for compressed air supply. The track also has a 0-200cm scale graduated in millimeters for measuring distances and recording positions. The kit includes various gliders, which float to and fro on the air cushion, together with a large number of attachments to permit a comprehensive range of experiments. The complete apparatus including Air Track and attachments/accessories are packed in kit form. Linear Air Track is supplied complete'with following accessories. 2 large vehicles (mass 400g, length 215mml, 1 small vehicle (mass 200g, length 100mm), 2 magnetic buffers (25mm diameter), 2 Plasticine holders (20mm diameter) with central hole 4 catapults (45mm wide) with slot for elastic band, 3 steel buffers with central hole, 4 elastic cords (220mm long) with plastic rings 1 reel of nylon thread, 2 white plastic rods (4mm diameter 150mm long) for stroboscope photography, 24 needles for use with steel buffer, 20 white plain cards for interrupting light beams 1 reel rubber stand, 1 pack of Plasticine, 20 elastic bands.

For exploring the concepts of mechanics involving linear motion on a near frictionless surface, such as acceleration, collisions (elastic / inelastic), explosions, conservation of momentum and simple harmonic motion etc. Air track, the principal component of the apparatus, comprises of specially designed, rugged, anodized, aluminium alloy extrusion providing a straight working length of 2m, is mounted on four cast metal feet with leveling screws, two on each side positioned along the length. Two rows of fine holes provided on each side all along the length of the track through which jets of the air emanate to form air cushion on which the vehicles float under virtually frictionless conditions. One end of the track has an air inlet tube connection for compressed air supply. The track also has a 0-200cm scale graduated in millimeters for measuring distances and recording positions. The kit includes various gliders, which float to and fro on the air cushion, together with a large number of attachments to permit a comprehensive range of experiments. The complete apparatus including Air Track and attachments/accessories are packed in kit form. Linear Air Track is supplied complete'with following accessories. 2 large vehicles (mass 400g, length 215mml, 1 small vehicle (mass 200g, length 100mm), 2 magnetic buffers (25mm diameter), 2 Plasticine holders (20mm diameter) with central hole 4 catapults (45mm wide) with slot for elastic band, 3 steel buffers with central hole, 4 elastic cords (220mm long) with plastic rings 1 reel of nylon thread, 2 white plastic rods (4mm diameter 150mm long) for stroboscope photography, 24 needles for use with steel buffer, 20 white plain cards for interrupting light beams 1 reel rubber stand, 1 pack of Plasticine, 20 elastic bands.

A simple and economical apparatus with all functionalities similar to AIR BLOWER, DELUXE Constructed to the demanding standards and features typical of more expensive units. The lightweight track, designed with easy setup in mind, provides a total working length of 2m.

Specifically designed for use with the apparatus, provides constant air pressure. Significantly quieter than other sources, yet powerful enough to easily float fully-loaded gliders. Supplied complete with flexible hose pipe and mains lead attached to it. Operates on 220-240V AC, 50Hz.

Specifications: Linear Air Track length: 200 cm. A frictionless system to explore kinematics. The most fundamental laws of physics states that a moving object will continue forever at a constant velocity unless it is acted on by an external force. With our near frictionless linear motion track, this incredible observation is made easy to understand. An air track glider provides for highly accurate investigations into the laws of motion. Students can investigate inelastic collisions, impulse and change in momentum, conservation of momentum, conservation of energy and more in our 2 m long track. Because the frictional forces are negligible the data derived will always be accurate. COMPONENTS : • Air track - Assembly • Pendulum for Air Track • Needle with Support • Sewing needle (20x) • Slider for Air Track (long) (2x) • Long flag for Air Track (2x) • Small Stirrup (4x) • Large Stirrup (2x) • Slider for Air Track (short) • ABS Bush (2x) • Swan shaped hook • Clip with ring • Bumper for Air Track • Masses with support • Cord with rings (2x) • Black cardboard 50 x 70 x 0,2 mm (4x) • Black cardboard 70 x 100 x 0,2 mm (2x) • Painted aluminium flag • White cardboard 150 x 100 (20x) • Red PVC rod • Sewing thread (reel) • PVC Sheet (2x) • Aluminium threaded bush (M3) (2x) • Magnet with rod (2x) • Electromagnet • Electronic Digital Timer • Photogate (Altay Brand) (2x) • Power Supply 12 V DC 220 V AC • Pulley for Inclined Plane • Air Blower • Voltage Regulator for Air Blower • Stainless Steel Sphere, diam. 12 mm (2x) • Reel of Nylon Filament • Cylindrical Magnet (2x) • Plasticine? (2x). LAWS & PRINCIPLES INVESTIGATED : • Principles of the inertial mass systems • Conservation of momentum • Conservation of momentum and energy • Investigating acceleration • Determination of the velocity of the constant linear motion • Effect of a force on the motion of an object • Elastic collisions • Inelastic collisions • Experiments with kinetic and potential energy • Mixed motions: medium range speed, instantaneous speed, parabolic time chart • Investigating Newton’s 1st Law of Motion • Investigating Newton’s 2nd Law of Motion • Looking at linear oscillating systems on a track • Principle of Inertia • Rectilinear uniform motion on a track • Description of a trajectory • Uniform accelerated rectilinear motion • Uniformly mixed motion, speed and acceleration.

Comprising two cast metal end pieces joined together by three nickel plated rods and carrying two sliding V-supports for a glass jacket with inlet and outlet tubes. One end piece fitted with spherometer reading 0.01mm, and other with contact screw. The glass jacket encloses both a brass and a copper rod each of about 50cm length, fitted through corks, a half turn of the jacket changing rod in contact with the spherometer. A thermometer can be attached to either of the rods by rubber bands. A binding post is fitted to each end piece for connecting an electric bell or galvanometer to indicate make/break of contacts.

Comprising two cast metal end pieces joined together by three nickel plated rods and carrying two sliding V-supports for a glass jacket with inlet and outlet tubes. One end piece fitted with spherometer reading 0.01mm, and other with contact screw. The glass jacket encloses both a brass and a copper rod each of about 50cm length, fitted through corks, a half turn of the jacket changing rod in contact with the spherometer. A thermometer can be attached to either of the rods by rubber bands. A binding post is fitted to each end piece for connecting an electric bell or galvanometer to indicate make/break of contacts.

An improved version of Linear Expansion Apparatus. Comprises of a plated metal tube having a riffled nozzles near each end, facing opposite each other for use as inlet and outlet of steam, and another outlet at the center with holed rubber bung for inserting thermometer to measure the inside temperature. Mounted horizontally on the metal base with the help of brackets with one end having a precision micrometer screw head reading to 0.01 mm and other end having adjusting screw. The metal rod to be investigated is supported in the steam jacket by detachable economical cups situated at each end of the tube. The met a I base painted with scratch-resistant epoxy coating. Supplied complete with one each, copper, brass and aluminium rods but WITHOUT thermometer.

Two cast metal legs joined together by a pair of plated metal rods, with each leg having provision for horizontally supporting the ends of plated brass tube about 50cm long. The tube has a riffled nozzle near each end, facing opposite each other for use as inlet and outlet of steam, and another outlet at the center with holed rubber bung for inserting thermometer to measure the inside temperature. The test rod is inserted in the brass tube supported in rubber bungs at its each end. At one end is fitted a micrometer screw head reading to 0.01 mm. A 4mm terminals provided on each leg for connecting an electric bell or galvanometer to indicate make/break of contacts. Supplied complete with 3 metal test rods, one each of copper, brass and steel.

Demonstrates the linear expansion of solids and allows comparison of expansion rods of different materials. Comprises cast metal end supports mounted at each end of a horizontal metal reservoir, open at the top. that can take any liquid fuel such as alcohol. One of the end supports has a scale with pointer needle on the outside to indicate the expansion in the rod. Expansion rods supported in the holes near top of both the end supports and can be clamped at the end opposite to that of scale pointer. Burning of fuel in the reservoir causes rod at the top to expand. which in turn pushes the pointer needle showing deflection in the scale. Includes three expansion rods, 1 each of brass, copper and aluminium.

The accuracy in determination of coefficient of linear expansion of the material of a rod depends on the precision level of measurement of the expansion produced as a result of rise in its temperature, which is provided by a dial gauge indicator, graduated 0.01 mm per spanision. Ideal for higher grade students. The apparatus is similar to LINEAR EXPANSION APPRATUS in construction but has a dial gauge indicator instead of micrometer, which can be easily assembled into the apparatus or removed for convenient storage. It requires no electrical terminals or accessories for measurement. The apparatus comes completely assembled and includes four expansion rods, one each of steel, brass, aluminum, and copper.

Economical version similar to PHYSICS 0028, but mounted vertically on a base.

Easy to use digital circuits project and testing board. Specifications : Size: 35 x 25 x 6 cm – Weight: approx. 1.2 kg. The Logic Circuit Board is a complete solution for the study of logic gates. A logic gate is an arrangement of controlled switches used to calculate operations using Boolean logic in digital circuits. The board features AND, NAND, OR, EXOR and two different types of NOT gates. The kit is supplied in sturdy plastic storage case with power supply and connection cables. LAWS & PRINCIPLES INVESTIGATED : • Logic gates • Truth table • Boolean algebra.

Compact, battery operated, light-weight and poratable meter useful for measuring intensity of light. Designed and fabricated keeping in mind convenient operation and long life of reliable use. Incorporates 3 1/2 digit LCD display with auto zero adjust facility and low battery indicator. Separate light sensor permits measurements quickly and conveniently at the desired location. Main features include Display : 18mm, 3 1/2 digit LCD display, Ranges : 0 - 50,000 LUX in 3 ranges (2000, 20,000 and 50,000) Accuracy : ? (5% + 2d) in all ranges (at 23 ? 5?C), Over Input : Indication of "1", Sampling Time : 0.4second, Operating Conditions : 0 - 50?C / 0-80%RH, Power : 006P DC 9V battery (consumption approx 2mA).

For demonstrating the huge forces that atmospheric pressure is capable of exerting. The apparatus comprises two plated hemispherical cups, with carefully ground joint flanges for precise matching. One of the cup mounted on stand and has a ball valve stopcock underneath that has and riffled connector for connection to vacuum pump and for releasing vacuum. The upper cup has a removable ring-shaped t:landle at its top for pulling both the cups apart under evacuated condition

For demonstrating the huge forces that atmospheric pressure is capable of exerting. The apparatus comprises two plated hemispherical cups, with carefully ground joint flanges for precise matching. One of the cup mounted on stand and has a ball valve stopcock underneath that has and riffled connector for connection to vacuum pump and for releasing vacuum. The upper cup has a removable ring-shaped t:landle at its top for pulling both the cups apart under evacuated condition

For demonstrating the huge forces that atmospheric pressure is capable of exerting. The apparatus comprises two plated hemispherical cups, with carefully ground joint flanges for precise matching. One of the cup mounted on stand and has a ball valve stopcock underneath that has and riffled connector for connection to vacuum pump and for releasing vacuum. The upper cup has a removable ring-shaped t:landle at its top for pulling both the cups apart under evacuated condition

A simple and economical device for demonstrating the effect of atmospheric pressure. The apparatus consists of two plastic hemispheres about 100mm in diameter, both having handles at their top. One of them has a plastic stopcock for pumping out air and releasing vacuum and a rubber D?ring seal inside. The lightweight plastic construction makes them easy to handle and convenient to use. Can be connected to any suitable vacuum pump for evacuation