Abbot & Abbot

Multiplate type, fitted with positive and negative plates, for heavy current loads in plastic container.

Clear acrylic all faces fully polished.

Size 75x50x18 mm.
Size 100x65x18 mm.
Size 115x65x18 mm.
Size 125x65x18 mm.

Clear acrylic, all faces fully polished.
Dia. x Thickness
90 x 16 mm.
90 x 25 mm.

For the construction of a unit to demonstrate cam action and the effect of different cam profiles cut from card.

It consists of two adjustable plates 100mm. dia. insulated handle and a glass dielectric plate.

Features :

1. Advanced lab trainer for students to perform more than 50 experiments of analog electronics
2. Compatible with optional ready to use experimental modules.
3. Glass Epoxy PCB used as front panel of 300mmx220mm & mounted on light weight shock proof plastic cabinet.
4. On board power supplies, Function generator, and other input signals
5. Bread board provided
6. Supplied with connecting wires

The instrument has a cup wheel consisting of three conical cups in a horizontal plane. The cup wheel spindle is of stainless steel and connected worm gearing to a revolution counter mounted in a water proof housing. By observing the counter reading at the beginning and end of any period of interest the average wind speed during the interval can be calculated. The counter observing window is sloped to permit easy reading when mounted on the mast.

Comprising a strong U-shaped magnet and a pair of brass rails with 4 mm socket terminals. A brass axle with plastic discs is free to roll along the rails and completes the electrical contact between them. When the axle is placed on the rails between the poles of the magnets, and power supply unit is connected, the axle is repelled and rolls along the rails away from the center of magnetic field. Dimensions 175x60x58 mm.

ABBOMED^TM A single beam scale, robust steel body with epoxy powder coated parts. The beam carries a sliding weight to indicate the weight from 0 to 5kg in divisions of 20 grams each. One hanger and one slotted mass is provided to increase the capacity of the balance. When only the hanger is suspended from the end of the beam the capacity increases to 10 kg and the reading starts from 5 kg onwards on the scale up to 10 kg. On adding the slotted mass on to the hanger the capacity increases to 15 kg and the reading starts from 10 kg onwards on the scale up to 15 kg. The tray is detachable and can be easily replaced in position by sliding on to fixed plate. Second scale is provided which reads 0 to 1 kg in division of 10 gms. Making the total capacity of balance 16 kg in to 10 gms.

ABBOMED^TM Basic general purpose balance for students. The hangers have double hooks for specific gravity experiments, and pans are detachable. The balance is finished in black colour with chrome plated fittings and mounted on polished wooden base with leveling screws.

Polystyrene bodies with large, easily read flat scales, zero adjustable device having anodized metal scale is provided.

ABBOMED^TM Dial type, circular scale, 6 inches with suspension and load hooks, with zero adjuster.

Polished brass, supplied with wooden block, as illustrated.

B. Capacity 1000 gm.
Comprising 1x500 gm, 1x200 gm, 2x100 gm, 1x50 gm, 1x20 gm, 2x10 gm, 1x5 gm, 2x2 gm, 1x1 gm.

Polished brass, in hardwood case with hinged lid. Divided compartment with dust cover holds nickel-silver and aluminum fractions. With chrome plated brass forceps.

A Capacity 1 mg to 100gm.
B Capacity 1 mg to 200gm.
C Capacity 1 mg to 500gm.
D Capacity 1 mg to 1000gm.
E Capacity 1 mg to 2000gm.

ABBOMED^TM Polished brass, supplied with wooden block, as illustrated.

A. Capacity 500 gm.
Comprising 1x200 gm, 2x100gm, 1x50gm, 1x20gm, 2x10gm, 1x5 gm, 2x2 gm, 1x1 gm

ABBOMED^TM Polished brass, supplied with wooden block, as illustrated.

C. Capacity 2000 gm.
Comprising 1x1000 gm, 1x500gm, 1x200gm, 2x100gm, 1x50gm, 1x20gm, 2x10gm, 1x5gm, 2x2gm, 2x2gm, 1x1gm.

ABBOMED^TM In graduated tubular aluminium, with zero adjustment, provided with top suspension loop and hook, with dual scale in Metric and Newton range.

ABBOMED^TM 4 mm. Pin, 18 mm. Long spring insert and hard plastic body. Overall length of plug 40mm.

For illustrating expansion by heating and contraction by cooling comprising a mild steel bar 110x10mm (lenght), on rod with wooden handle, overall length approx. 280mm. with metal cast gauge, sliding fit over ends of bar and with hole 10mm bore in one arm.

To show the forces which can be exerted during thermal expansion or contraction. Comprising a heavy cast iron frame 340x120x100mm with slotted end pillars to carry a stout iron bar. The bar is threaded at one end for a large tensioning nut and has holes at the other end to accommodate the cast iron breaking bars. Supplied complete with ten breaking bars.

Chrome Steel, in Pairs, half Red/Blue painted with keepers. Dimensions are nominal.

Size :
37x12x5 mm.
50x12x5 mm.
75x12x5 mm.
100x12x5 mm.
150x12x5 mm.

Dimensions are nominal. supplied in cardboard boxes.

ABBOMED^TM Wi t h 1 0 0mm d i a l graduated 28 to 31 inch of mercury and 960 to 1060 millibars. With plated bezel, cover glass and index plastic base approx. 16cm diameter. Enclosed in a transparent synthetic case for demonstration purposes. Air tight sealed all round, a pressure bulb is provided to force the movements for educative demonstration

ABBOMED^TM For demonstration, mercury column is feasible and scale graduated in Metric and English system. Zero point adjustment is carried by a screw clamp attached to a glass tube, complete fitted on wooden polished, supplied without mercury.

ABBOMED^TM With 100 mm dial graduated 28 to 31 inch of mercury and 960 to 1060 millibars. With plated bezel, cover glass and index plastic base approx. 16 cm. diameter

Multipurpose, zinc carbon, good quality, leakproof, safe recommended where the current demand are modest.

Battery Eliminator

Battery Eliminator offered by us is ideally designed to be safe & reliable source of low voltage D.C., for use in class rooms. Both, Universal DC Battery Eliminator and Universal AC Battery Eliminator are available in the market. Allow teachers to conduct experiments requiring a variety of direct voltages while avoiding the decreased characteristics of dry cell. Comprising a heavy duty transformer wound with copper wire with high lamination to avoid losses, selector switch & bridge rectifiers (consists of full wave silicon diode bridge rectifier) with jewel light and safety fuse. We are also reputed amongst the dependable Drill Battery Eliminator Manufacturers, based in India.

Output 2-12 VD.C in steps of 2, 4, 6, 8, 10 & 12 Volts

ABBOMED^TM For use on pump plate not less than 15 cm. dia. Electric Bell operating 4-6 volts AC/DC, suspended on rubber cord in bell jar. Fine coiled wire connections to terminals mounted in rubber bung sealing the jar. Sizes : 9”x6” and 8”x4”

ABBOMED^TM For use on pump plate not less than 15 cm. dia. Electric Bell operating on 4-6 volts AC/DC, suspended on rubber cord in bell jar. Fine coiled wire connections to terminals mounted in rubber bung sealing the jar.

To demonstrate that charge resides only on outside surfaces of a conductor. Sphere of 5 cm. diameter on insulated stand, complete with hemispherical cups, having insulated handles.

SPHERICAL CONDUCTOR, CONICAL CONDUCTOR CYLINDRICAL CONDUCTOR ARE ALSO AVAILABLE

ABBOMED^TM A circular gauge having overall dia of 100 mm and depth of 40 mm. The dial reads 0 to 50 Lbs / In 2 x 1 & 0 to 3.5 kg / cm 2 x 0.1 actual (total) pressure and the case has clear Perspex.

ABBOMED^TM This rugged, sensitive electroscope can accept various accessories to change its capacitance. A sensitive aluminium vane is balanced in a vertical position on a metal support which is insulated from its base. The vane is easily observed and projected on a chalkboard (Light Source, not included) on which an arbitrary scale has been marked. Height without attachments is about 9". Four attachment, each equipped with a banana plug which fits the vane system top, are included : a 1" conducting sphere; a 3" conducting sphere; a proof plane with detachable insulating handle; and an aluminium cup (Faraday ice pail). Attachments can be charged using either our Electrophorus or our Power Supply (not included). With instructions.

ABBOMED^TM orkutFor demonstrating Archimedes principle, this is a simple form in brass, suitable for class demonstration or individual use. The bucket has suspension loop at the top and hook at the bottom. The cylinder has a suspension hook at one end. Size 6 cm long, overall length when extended 16 cm.

A Bucket and Cylinder
B Bucket and Cylinder Large

ABBOMED^TM Mounted bulb holder for easy connections to electrical circuits. Overall dia. 30 mm.

ABBOMED^TM Mounted bulb for easy connections to electrical circuits. Overall dia. 30 mm.

Bulb Holder M.E.S. Plastic

Bulb Holder M.E.S., PVC

ABBOMED^TM Polished Copper, 75x50 mm. diameter resting on felt pad inside an outer vessel, 100x75 mm. diameter. Outer vessel fitted with detachable cliptype thermometer support. Complete with stirrer.

ABBOMEDT^M With parallel sides and rolled rim, without stirrer.

Dimensions are in mm.

75x50 diameter
100x75 diameter

ABBOMED^TM A complete set in copper comprising : 1 inner vessel carried on cork supports; 1 outer vessel diameter 1 lid for out vessel with central tubule for thermometer and slit for 1-stirrer.

ABBOMED^TM Copper, 75x50 mm., height x diameter, resting on felt pad inside wooden polished box, which is provided with a brass nickle plated thermometer holder, with copper stirrer.

Capacitance Boxes

Capacitance Boxes offered by are made in single or more dials having condensers joined in parallels. Each dial of Portable Capacitance Boxes contains ten segments, high grade paper condenser housed in a teak wood case with engraved Bakelite top or in Metal case with Screen Printed Top. Moreover, we are listed amidst the preeminent Decade Capacitance Boxes Exporters and Suppliers in India.

•Single Dial Condenser Box

•Two Dials Condenser Box

•Three Dials Condenser Box

•Four Dials Condenser Box

Product description:

ABBOMEDT^M Newly designed holder which can hold different type of electrodes. Complete assembly can be put on the top of the vessel/jar.

Made of aluminium, with handle. Used for collecting the liquid overflow flowing from displacement vessel.

ABBOMED^TM Cathode Rays exert a pushing effect on objects it falls on, is shown by the rotating vanes by the force extended by cathode rays.

Specially designed for charging Ni-Cd 1, 2, 3 or 4 AA batteries at a time of 1.2 volt, 700 milli amps. Operates on 220 volt AC.

Fast charging, operates on 220 Volt AC.

Simple circuit modules can be used to construct simple circuits. Very useful for younger pupils.

Same as above, but in compact shape and size, are also available.

For demonstrating the principle of conservation of momentum and showing that momentum is a vector quantity having direction as well as magnitude. The apparatus comprises the following items.

1. A curved wooden runway and its highest point, having a groove down which a steel ball may be rolled.
2. An object sphere support. This is an adjustable device which attaches to the mounting plate of the runway and will support a ball either exactly opposite the end of the runway for head-on collision or slightly offset for oblique impacts.
3. A plumb-bob for making the plumb line.
4. Two spheres (steel ball bearing 19 mm. diameter.

ABBOMED^TM To show the differential expansion of metals in a bimetallic strip. Comprising a length of bimetal strip 150x15mm mounted in a wooden handle. The strip is only 1mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx.

Optically worked, silvered back with protective coating.

Optically worked, silvered back with protective coating.

The apparatus consists of a fabricated transparent acrylic stand supporting three cells in the form of 50 ml glass beakers.

Electrodes are suspended into the cells, each having a low voltage lamp in series to indicate the current flowing. The three cells and lamps, as a group are connected in parallel and provided with a pair of 4 mm sockets for connection to the external supply. The lamps provided will allow operation on a supply of up to 12V D.C. Dimensions are 215mmx155mmx115mm widthxdepthxheight

Metal rods 150x3 mm. (length x dia.), one each of aluminium, brass, copper, glass and iron, embedded along one side of a metal tank size 150x90x100 mm. (length x width x height).

Hardwood, polished, 24 H x 15 cm. base dia. Four different sectionscircle, ellipse, parabola, and hyperbola held together by a pin and easily taken apart for demonstration. Can be dissected in 5 parts.

To show the convection of heat in a liquid. glass tube 2 mm outer diameter bent into rectangle approx.380x300mm, fitted with funnel. Made from corning glass.

Optically worked, silvered back with protective coating.

Consists of 3 copper plates with insulated cover and glass jar.

Spring-loaded, serrated jaws, with screw to clamp end of lead held in tubular extension, both sides insulated. Length 50 mm. and jaws open 9 mm. Red Colour & Black Colour.

Cubes for density investigation, 20mm. Brass, Lead, Steel, Copper, Aluminium, Iron, Tin. Set of 6.

- PR 230 (0-30V / 2A), PR 231 (0-30V / 5A)
- High accuracy, high stability
- Overload & short circuit protection
- Allow full scale long time operation
- Voltage and current continuously variable within nominal value
- CC/CV indication

- PR 230 (0-30V / 2A), PR 231 (0-30V / 5A)
- High accuracy, high stability
- Overload & short circuit protection
- Allow full scale long time operation
- Voltage and current continuously variable withinnominal value
- CC/CV indication

This decade resistance substitution box provides 4 decade ranges from 0 to 11110W with a resolution of 1W. Each decade is selected by a rotary switch. Tapping points are provided across each range to allow the unit to be used as an accurate potential divider. All resistance values are + 2% with a rating of 0.25 W maximum per range.

ABBOMED^TM This model uses the same basic assembly as the motor, but is mounted on a baseplate 230 x 90 mm. approx. which also carries a hand-drive pulley 120mm. diameter coupled to the smaller dynamo pulley by a rubber belt to give a step-up ration. Electrical output is via a pair of 4mm. sockets. The model may also be used as a motor on a 6-8 V D.C. supply.

With primary of heavy gauge enamelled copper wire, approximate resistance 0.5 ohms wound on former 110x30 mm. length x diameter. Secondary coil of fine enamelled copper wire, approximately resistance 100 ohms on former 120 x 82 mm. length x diameter. Both coils fitted with 4 mm. sockets. Iron core 160x15 mm. length x diameter.

In a rectangular transparent plastic case, provides clear view into the working of meter. Moving coil type, can be supplied as ammeter, voltmeter or galvanometer 4 mm. terminals.

ABBOMED^TM Housed in a ABS plastic case 300x150x300 mm with glass front and rear. Moving coil type with accuracy of + 2.5%. Basic sensitivity of meter is 5 mA, 100mV f.s.d. The meter can be used to demonstrate the working principle of AC or DC ammeters or voltmeters with the interchangeable plastic scales. DIFFERENT DIALS ARE AVAILABLE.

ABBOMED^TM With one mains coil 230 to 240 V, 50 Hz, 2400 turns and two interchangeable secondary coils, 65 and 130 turns giving outputs of 6 and 12 V approximately at 2 A maximum.

The laminated iron core is in two sections, 'T' and 'U' with butt joints, the stem of the 'T' having a cross section 24 x 24 mm.

A simple channel and wing-nut clamping arrangement facilitates quick assembly and interchange of coils. The coils are wound on insulating bobbin, with 2-pin connection for mains and 4 mm sockets for the secondary outputs. The number of turns, voltage and amperage is marked on each coil.

The transformer is supplied complete with 2 m of flex and a 2-pin mains connector. Overall dimensions 150x100x130 mm.

Consisting of :

A I magnetic circuit made up of highly permeable U-shaped metal sheeting, which can be closed via two clamps with tightening screws.

B Section 40x40mm. length 150mm-Height 170mm.

C One coil of 6000turns, 350 ohms, 1 Max: 0.2A. Intermediary 2000 turns output used.

D One coil of 600 turns, I max. 2.5A. Mainly to create the transformer primary. Provided with power supply cable.

E One coil of 1200 turns, 12.5 ohms, I max: 1.25A fitted with intermediary 400 and 800 turns outputs.

F One coil of 72 turns I max: 12A, has intermediary 6,30 54 and 66 turns outputs. Any other coil of different turns available on request.

Features :

1. Basic trainer for students to perform more than 15 basic experiment of operational amplifier.
2. Glass Epoxy PCB used as front panel of 300mmx220 & mounted on light weight shock proof plastic cabinet.
3. On board power supplies, function generator & Bread Board mounted.
4. Supplied with set of components & connecting wire.

Portable type, having large display of 3½ digits, type LCD, power 9 Volts battery, accuracy + 1 digit, size 125x65 mm.

DC voltage ranges

a) 0-199.9 mV

b) 0-1.99 V

c) 0-19.9 V

d) 0-199.9 V

DC current larges

a) 0-199.9 mA

b) 0-1.99 mA

c) 0-19.9 mA

d) 0-199.9mA

e) 0-10 Amp.

This sturdy, lightweight stopwatch has multiple functions you'll use every day, including time and date mode, stopwatch mode, and an alarm ! Digital Stop Clock has 1/100 Sec. (upto 10 Hrs.)* Big Digit, Time, Timer Alarm.

ABBOMED^TM Digital thermometer resolution 0, 1 °C; range –50 to 150°C supplied with a temperature probe with cable for digital thermometer support to 150°C

ABBOMED^TM The case is made of aluminium, strongly mangetised cobalt steel needle fitted with imported hard axle rolls on knife edges agates and can be clamped when desired by a V clamp, a sensitive spirit level is provided. The tripod stand is provided with three levelling screws.

ADV-1 A complete and light weight direct vision spectroscope without wavelength scale, for observing visible radiations from 400 to 750 mm.

ADV-2 A compact visible spectroscope with wavelength scale which allows the direct reading of spectral length and employs a prism for dispersion. It is also useful for flame test of basic radicals (sodium, strontium, potassium, copper etc.) There is a single eyepiece and independent focussing tube for the graticule, which carries an index at 590mm. with "D", marked right below the scale, (corresponding to the wave length of sodium light) can be calibrated to a known light source by adjustment of knurled screw. The amount of light admitted to the spectroscope can be regulated by a variable slit, adjusted by a knurled ring round the rating tube.

ABBOMED^TM Jointed, small plated brass sphered mounted on curved arms, with ebonite insulating handle. Overall length 30 cm. approx.

Lucidly illustrated User's manual unravels analog electronics concepts through brief theoretical reviews followed by experiments, self test questions and exercises. Modularly designed patch panel contains all commonly used discrete components.

FEATURES :
It consists of following
a) Power Supply of +5V, +12V, -12V each of 250 mA (nominal)
b) Silicon, Germanium diodes, Zeners
c) PNP & NPN Transistors, FET
d) One speaker
f) 12 different values of carbon film resistances & they are of ¼w, ½w & 1 Watt.
g) 12 assorted values of capacitors from 100 PF to 100 mF.
h) Integrated Circuits (IC's), Thermistor
i) LED, LDR, Photo diode, solar cell
j) Logic switches & LED indicators etc.

Made of glass, for class demonstration with spout for specific gravity experiment, available in following

sizes :  A) 250ml B) 500ml.

ABBOMED^TM A classic toy that is really a heat engine. The bird operates because evaporation is a cooling process. After placing bird in motion, it will continue to drink as long as there is water in the cup and the room temperature is above 65°F.

With detachable ‘snap-on bakelite cover, metal thread terminals, silver contacts. Dome gang dia. 75 mm. approx. For use on 3 to 4.5 V AC/DC supplies.

The blower is supplied with the standard hose, length 2m, and the integral 2-core mains cable, length 5m. The cylinder has a completely insulated outer case rendering an earth connection unnecessary.

For demonstrating the effect of electric discharge from points. The apparatus has a 60mm diameter, Three-pointed star wheel with all the points curved in one direction. The wheel rotates freely on a pivot point mounted on a short stand and the stand is provided with a 4mm connection socket on its round moulded base.

Lifting type. Built with a coil of 300 turns of insulated copper wire. Operates on 6-12 volts and will easily lift 15 kg. when energised by a current of 6-8 amperes. Complete with disc armature.

Output variable from 100V to 5KV DC at 50 A, 6.3V AC at 2A, separate earthing terminal.

We have mounted an insulated stand on a solid round base. Over the hook at the stands end you dangle a silk thread with a light pith ball attached to each end. Pith balls react sensitively to static charges like those from a charged friction rod. Comes with 3 strings and six 8mm. pith balls.

ABBOMED^TM Comprises of 1 electroscope, 4 metallised polystyrene spheres, 1 each reel nylon, cellulose acetate strip, polythene strip, wire stirrup, rubber cloth , wire hook , electrophorus on handle and proof plane, 2 each of polythene tiles and aluminium cans.

To demonstrate the equal transmission by liquids of pressure in all directions. Comparing glass flask with holes and glass piston.

Comprising two cast-iron uprights, height 18 cm. linked by two nickel plated rods supporting on expansion bar, length 38 cm. fixed to one upright and resting on a friction pointer placed at the other. With scale reading 0 to 90 deg. With one each aluminium, brass and iron expansion bars.

For demonstrating the different thermal expansions of various liquids.Comprising five bulb tubes mounted in a frame and supported in a water trough. The frame has a special sliding arrangement with clips hold glass bulbs with tubes. The bulbs can be easily removed and fixed and have a funnel  formation on top for easy filling.

L-Section launcher with holes for locating two 19mm. diameter steel balls which act as projectiles. Launcher is released by push button and projects one ball forward while allowing the other to fall freely Launching mechanism mounted on wooden block, 180x60x30mm. which may be clamped by bench and has a convenient storage pocket for the balls. Complete with two steel balls.

ABBOMED^TM Demonstrates the phenomenon of transmissibility of fluid pressure. For the same force exerted, pressure is inversely proportional to the surface area. The apparatus comprises of the plated brass cylindrical tubes of different diameters, each fitted with piston and connected to each other through a brass tube at their bottom. Pistons have circular disc at the top for loading masses (masses not included). Complete apparatus mounted on a wooden base.

About 20 cm. in dia. and 45 mm. wide turned and carefully balanced, mounted on a horizontal shaft, held in ball bearings. The wheel is marked and pointer is fixed to the bracket. The bracket has four holes and can be fixed to the wall.

For use with a large motor/generator and a lamp unit to demonstrate the conversion of electrical energy to kinetic energy and then back again. Comprising an iron flywheel, mounted in cast brackets with bearings. The shaft has an aluminium 'V' pulley for driving with the spring belt supplied.

To verify the law of composition and resolution of forces consisting of a aluminium table 40cm in dia. its raised rim has a engine divided scale, graduated in 360° mounted on heavy vertical support rod & tripod base provided with leveling screws. Body under study in a ring in center of the table fastened by cords passing over four pulleys attached with the table. Complete with four pulleys, four weights hangers twelve we i g h t s ( 2 x 1 0 gm, 2 x 2 0 gm, 4 x 5 0 gm, 4x100 gm.)

Represents internal structure and operating principles of an air cooled two-stroke engine. All parts in aluminium alloy. Ignition is shown by means of a miniature bulb. Carburetter and fuel supply also sectioned. Mounted on base, with printed diagram showing working.

Two-Stroke Petrol Engine

Four-Stroke Petrol

Engine are also available.

ABBOMED^TM A model of four stroke water -cooled diesel engine. This is of the chain-driven overhead camshaft type and all functional components like camshaft, rock-arms, tappets etc. are clearly demonstrated. The functioning of fuel injection system is also represented. Ignition is shown by means of a miniature bulb, Mounted on base.

ABBOMED^TM Wooden friction board 490 x 75 x 20 mm. a wooden slider with hook 140 x 70 x 20 mm. a plain aluminium slider and an aluminium slider with rubber backing. A further long aluminium slider is provided which fits over the friction board to provide an alternative surface type.

Objective :
1. To study working principle & various faults of Function Generator
2. To study practical & theoretical aspects of circuitry
3. To study signals & voltages in different sections

Function Generator

The Function Generator is capable of Providing SINE, SQUARE, TRIANGLE. Low Distortion Function Generator has linear Frequency Scale very low Distortion and constant signal amplitude with the output Signal Symmetry about Zero. The DC coupled output provides square wave without any appreciable Sag at low frequency. It has maximum 20 VP/P amplitude. The output is protected against short circuit. It has a offset control provided to shift the base line of signal by ± 10 volts. The continuously variable DC offset control further enhances the versatility of the instrument. The equipment is used in Audio Electronics and other Laboratory & Research Work. Moreover, we are looked upon as one of the major Portable Function Generator Manufacturers & Exporters in India.

ABBOMED^TM Function generator offers excellent waves shape, signal linearity, waveform symmetry and frequency range from 1Hz-100 KHz.
Selection of sine, square and triangle wave and amplitude variable from 0 to 10 V
The instrument is designed using easy obtainable parts which present trouble free service.

Specifications:
Frequency rang 1Hz-100 KHz in 5 steps
Functions sine, square and triangle
Frequency Indication dial
Accuracy better than +- 5%
Amplitude up to 10V P-P open circuit
Output impedance 600 ohms

Objective :
1. To study working principle & various faults of FM Radio Receiver
2. To study practical & theoretical aspects of circuitry
3. To study signals & voltages in different sections

Moving coil D.C. only, with 4 mm. terminals.

1-0-1 mA.

35-0-35 mV.

3.5-0-3.5 mA.

30-0-30 Sensivity 20 mA / Div. are also available.

The cut section is constructed model is of light and strong metal showing air intake, axial flow, double stage compressor, fuel supply, combustion chamber, turbine rotor, jet thrust, exhaust etc. Complete on base.

Set of geometrical shapes, each of circle, triangle, semi-circle, squares and rectangular. Available in Plastic or Wooden.

Clear glass, all faces fully polished.
Dia. x Thickness
90 x 16 mm.

Clear glass with ground ends and optically worked faces.

A plated brass pillar mounted on bakelite base supporting two pith balls in unspun silk.

Unevaluated glass tube 50 cms. long, 16mm dia. Made from hard glass, with two rubber bungs, one carrying brass and 40 cm. long pressure rubber tubing to connect to vaccum pump.

The brass wheel is 7.5 cm. in dia. 3 cm. at its rim, carefully balanced and all three pairs of p i v o t s a r e a d j u s t a b l e . Complete fitted on stand.

A high quality X30 magnification instrument with builtin illumination and a retractable condenser / daylight filter slide. Accurate focusing is facilitated by the provision of a rotary control. supplied complete with lens - ended bulb and protective case but without batteries.

A hardboard disc with twelve 50x3 mm. slots and finger hold, pivoted on a ball bearing mount which also acts as a convenient handle. Diameter of disc. 255mm.

12 volts, 50 watts heater specially designed for use with metal block calorimeter. Electrical connection is via 30 cm. leads with heat resisting insulation, terminating in 4 mm. sockets.

Heater Immersion with lid as shown in the picture. Two different colour coded sockets are mounted on a lid. This is an improved model.

ALINCO, with keepers. Dimensions are nominal. Supplied in cardboard boxes.

A. 50x12x15mm.
B. 75x12x15mm.
C. 100x12x15mm.

Used to eliminate extraneous light from the lamphouses, they are provided as a right and left handed pair of metal, in open-ended cylindrical form, open length-wise to pass over the lamphouse boss and with a slot at one end to permit the light to pass. Finished in matt black.

For specific gravity, shot loaded, subdivided in 0.002mm. Overall length approx. 250mm. Range 0.80mm to 1.00mm adjusted for low surface tension, others adjusted for medium surface tension.

Wooden friction board a wooden slider with hook and plain glass slider A further long glass slider is provided which fits over the friction board to provide an alternative surface type.

Hardwood comprising, cut-away base to allow cord to hang freely and hinged plane 60x7.5 cms. with aluminium pulley 28mm diameter, and stepped lower face to accommodate wood block for setting at angles between 24° & 45° approximately with cylindrical metal roller and scale pan.

Hardwood comprising, cut-away base to allow cord to hang freely and hinged plane 60x7.5 cms. with aluminium pulley 28mm diameter, and stepped lower face to accommodate wood block for setting at angles between 24° & 45° approximately with cylindrical metal roller and scale pan.

Panel mounted, spin free with 4 mm. sockets. Available in Black/Red colours

Different types of Sockets, Plugs are shown in the picture below

For Wheatstone bridge and potentiometer work, with insulated handle, plated brass contact, and a plated brass terminal with 4 mm. socket.

Overall length 100 mm.

For simulated molecular activity in gases. To understand and study motion and behavior of molecules in gases. An electric motor, running at 4 to 12 V DC vibrates a small platform inside a transparent tube so that a set of many small stainless steel balls is vibrated violently inside the tube. An increase in the violence of vibration simulates an increase in gas temperature and an increase in the weight of the 'float' simulates an increase in gas pressure. Supplied with balls and 2 'floats'.

Low voltage, double pole double throw, may be used as changeover switch with appropriate connections, moulded base with plated metal contacts and screw connectors.

Low voltage, single pole double throw, moulded base with plated metal contacts and screw connectors.

A 240V 15W white B.C. pygmy lamp in a conical lamp house. Mounted on a 6mm. metal rod. Supplied complete with twin flex.

Comprising a 12 volt, 24 watts lamp in a conical lamp house mounted on an adjustable boss. The lamphouse has cut-outs on its side, giving a clear passage for the light while restricting the amount of stray illumination. The assembly is supported on a rod with a triangular cast base.

For use with motor/generator to give an indication of their output when used as dynamos. The lampholders are connected in parallel. Supplied with three lamps 3.5 V 0.25 A, M.E.S.

The apparatus comprises a thick brass calorimeter approximately 90x65 mm. diameter, a bung with steam inlet and outlet tubes, a felt cover, and a 1100 cm3 tinplate boiler with bung to take the steam tube which a connects to the calorimeter.

Wooden, to take lenses or mirrors up to 76mm diameter. Comprising an upright 100mm high, with a V shape slot to hold a convex or concave lens, mounted on a rectangular base 100x50mm. An index mark is engraved on each end of the base.

A. Lens Holder : Comprising metal holder with sides grooved to hold lens or mirror of 50mm diameter.

B. Lens Holder : Round made of unbreakable PVC material, to take lens or mirror of 50mm diameter.

C. Lens Holder : Cast light metal, for lenses upto 25mm to 63mm diameter, with V-arms mounted on stem 9.5mm diameter.

D. Lens Holder : Spring pattern, to hold lens or mirror of 50mm diameter, V-groove in centre o f holder. Mounted on 6mm metal rod which fits into standard optical bench mounts and stands. Supplied with bakelite base.

V-section with hinged arms to take any lens.

50 mm. diameter with ground and polished faces and ground edges. One each of double convex, planoconvex, converging concave-convex, diverging concaveconvex, double concave, planoconcave. Supplied in box.

For introducing the concept of equilibrium leading to an appreciation of the principle of the beam balance. Consisting of a polished boxwood rule .5m in length, divided in centimetres and millimetres on both edges. Drilled every 2 cm.

Height 355mm approx. Made of corning Glass

This kit is very useful for reflection, refraction, and colour mixing experiments. The light box consists of a light source (12V, 24W lamp), producing convergent, divergent, or parallel beam. On one end, an adjustable cylindrical convex lens (for parallel beam) and on the other end, a triple aperture system for colour mixing experiments (lateral aperture are provided with adjustable hinged mirror). All aperture in the box are provided with vertical channels to hold slits plates and colour filters. The optical set includes:

A. 10 acrylic blocks

B. Set of three mirrors

C. 2 slit black plates one with three narrow slits at one end and one narrow at other end.

D. Black plate with four narrow slits at one end, one wide slit at the other end.

E. Set of seven mounted colour filters.

For showing the conversion from electrical energy via mechanical, to potential energy by winding up a weight on a cord. One end of the 6mm. steel shaft carries an aluminium 'V' pulley 56 mm. diameter, and the other end is fitted with a cord anchoring collar. Supplied complete with driving belt.

Angular section aluminium alloy track, length 255cms, with staggered air holes, supported on two light alloy castings positioned 45 cm from each end of the track. One support has a two- point contact and other onepoint contact for lateral and horizontal adjustments for which a knurled screw is provided. Large catapult arms with slots for elastic bands are fitted to each end of the track. A fully fitted to one end of the track enables experiments involving acceleration under a constant force. Identical end caps enable air to be introduced from either end of the track, bung being supplied to close the end not being used. The vehicle buffer attachments and clamping screws are matt black to help interpretation of stroboscopic photographs.

Consisting of a metal rod, 500mm in length and 4.5mm diameter, enclosed in a well lagged, nickle plated brass tube with three tubules for steam, inlet, outlet and thermometer. The metal rod to be studied is supported in the steam jacket by detachable conical cups situated at each end of the tube. The apparatus is carried on a heavy gauge channel base, at one end of which is an adjusting screw. At the opposite end is a micrometer screw reading to 0.01mm for measuring the expansion. Supplied complete with copper, brass & iron rods but without thermometer.

Brief Features :

1. DC regulated power supplies Fix +- 12V/250mA, Variable 0 to +- 5 V/250mA
2. Sine wave oscillator of 1 KHz at 0.5 V p-p is built in
3. Functional diagram of IC 741 with input point is printed on board. Additional 8 pin IC base with machine pins is provided for putting any other IC of choice
4. Digital voltmeter 0-20 V DC 1 no
3.1/2 digit, LCD display, mains operated.
5. Assorted values of resistance 11No. 100, K, 3.3 K, 5K, 10K, 22K & 100 K ohms
6. Assorted value of capacitances 3 No 0.1, 1, & 10 uF
7. potentiometer 10 K ohm, Linear V 1 No
8. 2mm inter-connection leads 10 No
9. Toggle switch with selection of input or output V is provided.
10. Comprehensive USERS manual for performing 10 experiments on OP-AMP.

To show that the level of liquid in communicating vessels is constant irrespective of the size or shape of the vessels. The apparatus comprises four glass tubes of different shapes and cross sectional area projecting vertically from a common horizontal tube. The tubes are mounted on a polished wooden base.

Analog voltage & current readout, robust transformer & highly stablized circuitry.

To demonstrate pressure of atmosphere fitted with stopcock and handle. Made of steel.

Magdeburg nickle plated, 100 mm. dia with non returnable valve and nozzle to connect to vaccum pump.

Carbon steel with brass cup bearing for pivoting.

Comprising a stout metal box, 100mm. diameter, with aluminium dial graduated in degrees 0-90 four times, anti-parallex mirror slot.

Fitted in plastic frame, superior quality.

Gowland type Plano-convex lens of extra white glass. Unbreakable plastic lens holder and aluminium anodized cover. Magnification 10x. Regular quality & Superior quality.

In metal frame and handle, chrome plated, packed in cardboard box.

In metal frame and bakelite handle, chrome plated, packed in cardboard box.

For use at moderate pressures, fabricated from glass tubing 6mm bore, 8mm outside diameter. Glass manometer with built-in stopcock mounted on back plate. The apparatus is open at both ends and is supplied unfilled, 250mm long, 32mm wide (75mm wide including the side arm)

Set comprises masses of aluminium with slots, aluminium hanger with hook. Fine finish, masses removable and replaceable on hanger.

A variety of materials in the form of rectangular blocks, intended to familiarize the students with the appearance, 'feel', texture hardness and density of a range of common substances. Kit comprises two of each seventeen blocks as below. Blocks, 50x40x30mm.

Softwood, hardwood, paraffin wax, aluminium, Iron, foamed polystyrene Blocks, 20x20x100mm. Perspex, glass, slate, aluminium, softwood, Marble. Blocks other sizes : Lead 50x50x20mm, Aluminium 50x50x80mm, Hardwood 50x50x200mm, Brass 20x20x50mm, Iron 40x40x20mm.