Products

Dramatically illustrates Newton's third law of motion and works well on an overhead projector. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with six plated steel balls of 19 mm diameter, suspended on the frame through lightweight cord. By pulling and releasing the different number of balls, collision results among the balls can be observed to draw many interpretations.

A nickel-chromium iron alloy especially suitable for high temperature applications such as heating elements, rheostats etc.

To show the effect of electric current on a magnet. Comprises a cobalt steel magnetic needle, about 75mm long, with agate bearing supported on pivot mounted on insulated pillar on base and surrounded by a rectangular frame of non-magnetic metal strip. Frame fitted with terminals for electrical connections. Passing the current through non magnetic frame causes magnetic needle to deflect as per Oersted's Law

For demonstration of Ohm's law, according to which V / I = R. When connected to an external battery through a pair of color coded terminals with a suitable resistance connected across another pair of terminals, the voltmeter and milliammeter readings are available at the press of the key. Current flowing through the circuit can be controlled through a rheostat knob. With milliammeter 0500mA DC, voltmeter 0-10V DC, rheostat knob, push key, and 4mm socket terminals mounted on top of sheet metal enclosure having scratch resistant epoxy paint coating. Circuit diagram indicating all components printed on top of the enclosure. External battery and resistances not supplied, available optionally

For investigation of surface tension phenomena and other related concepts Enabling the estimation of molecular sizes of oil to close approximation using an oil film of water so as to make an investigation into the order of atomic size. The kit has been designed to provide essentially for the needs of two students working together. It comprises of following components. i) Plastic Trays with raised edges and drainage hole- 2 Nos. ii) Rubber bungs for sealing drainage hole of trays - 2 Nos. iii) Surface wiping metal booms for leveling surface of paraffin wax iv) in tray - 4 Nos. v) Leveling Wedges for adjusting the tray level- 8 Nos. vi) Mounted Wire Loops -16 Nos. vii) Plastic Graticules, calibrated along one edge at the center for mounting in special holder when preparing oil drops - 8 Nos. viii) Special holder to facilitate preparation, selection and measurement of oil drop, comprising wooden block fitted with clips to accommodate to mounted wire loop, graticule and hand lens-8 Nos. ix) Olive Oil- 25ml x) Beakers - 8 Nos. xi) Lycopodium Powder-25g xii) Dispensers for Lycopodium powder - 2 Nos. xiii) Camphor - 2 Nos. xiv) Paint Brush -1 No. xv) Vessel for melting Paraffin Wax -1 No. xvi) Paraffin Wax - 500g xvii) Sponge to deal with the spillages - 2 Nos.

Clear acrylic plastic blocks about 20mm thick with all surfaces polished. All components available as separate parts as well as collection of all components in set form. Available in various blocks of different shapes and sizes.

Specifications : Optical Bench: length 116 cm. A complete set for exploring geometrical optics. The Optical Bench Deluxe Edition allows the student to investigate a wide variety of optical phenomena. These include: reflection, lens theory, polarization, interference, diffraction and optical instruments. COMPONENTS : • Optical bench • Slider for holders (6x) • Slider for projector • Slides and diaphragm holders (2x) • Set of 7 diaphragms • Iris diaphragm • Adjustable slit diaphragm • Projector • Transformer 12 V 2.5 A • Lamp Holder Single • Lamp Holder Quadruple • Equilateral Prism • Right-angle prism (90?, 45?, 45?) • Right angle prism (90?, 60?, 30?) • Prism table • Translucent screen • Two colour metal screen • Plane mirror on mount • Double-sided concave-convex mirror • Grease spot photometer • Pair of polaroid filters • Biconvex lens f = 50 mm • Biconvex lens f = 100 mm • Biconvex lens f = 150 mm • Biconvex lens f = 200 mm • Biconvex lens f = 300 mm • Biconvex lens f = 500 mm • Biconcave lens f = 50 mm • Biconcave lens f = 100 mm • Biconcave lens f = 150 mm • Biconcave lens f = 200 mm • Biconcave lens f = 300 mm • Biconcave lens f = 500 mm. LAWS & PRINCIPLES INVESTIGATED : • Concave and convex mirror • Convergent and spanergent lens • Focal length • Gauss approximation • The eye, hyperopic and myopic eye • Inverse square law • Lens power • Luminous intensity • Magnifier and magnifying power • Photometry • Prism • Ray tracing • Refraction index • System of lenses • The compound microscope • The telescope • Thin lens equation • Principles of biconcave, biconvex lenses and mirrors • Determine the focal length of a lens • Inverse square law of light • Rotation of light • Grease spot photometer • Polarization.

Specifications : Optical Bench: length 116 cm. The Optical Bench Standard Edition is the most easy and complete way to begin the exploration of the optics. Simple, complete and affordable. A simple and affordable way to begin exploring optics. COMPONENTS : • Optical bench 4417.50-001 • Slider for holders (6x) • Slider for projector • Slides and diaphragm holders (2x) • Set of 7 diaphragms • Projector • Transformer 12 V 2.5 A • Lamp Holder Single • Lamp Holder Quadruple • Equilateral Prism • Prism table • Two colour metal screen • Set of colour Filters • Halogen Lamp (spare) (2x) • Joly Photometer • Holder for Lenses and Mirrors (4x) • Set of 4 Biconvex Spherical Lenses • Set of 4 Biconcave Spherical Lenses • Set of 4 Convex Spherical Mirrors • Set of 4 Convex Spherical Mirrors. LAWS & PRINCIPLES INVESTIGATED : • Concave and convex mirror • Convergent and spanergent lens • Focal length • Gauss approximation • The eye, hyperopic and myopic eye • Inverse square law • Joly photometer • Lens power • Luminous intensity • Magnifier and magnifying power • Photometry • Prism • Refraction index • System of lenses • The compound microscope • The telescope • Thin lens equation • Principles of Bi-concave, bi-convex lenses and mirrors • Determine the focal length of a lens

Made from specially designed rugged aluminium extrusion and also permits the use of standard Light Box and Optical set for ray optics investigations. The accompanied prism table provides for the experiments in diffraction of light through prisms. The Light Box can itself be used as light source and the lens and blocks [prisms] in the optical set on the prism table. The extruded optical bench length has a 0-100cm x 1 mm scale and has tiltproof, easy sliding moulded plastic riders with index mark for mounting of various uprights and accessories. The optical Bench comes complete with following components. ? 1.5m long straight anodized aluminium extrusion optical bench with scale 1 Nos, ? Special mounting platform with metal upright to support light box 1 Nos, ? Convex lenses, 50mm diameter [of different focallengths) 8 Nos, ? Concave lenses, 50mm diameter (of different focal lengths), ? Object/ Image screen, - Lens holders, plastic 3 Nos, ? Rotary prism table 1 Nos

For exploring the fundamentals of optics, such as image formations, reflection / refraction through optical elements. Comprises a lightweight alloy extrusion having angular profile, about 1 m long, with a scale on one side graduated in millimeters. Complete kit includes - 1 Light source, 3.5V with parabolic reflector; 5 multipurpose holders - 40mm diameter diaphragm holder, screen holder; 4 convex lenses, diameter 40mm and focal lengths 25, 12.5, 10 and 5cm; 1 concave lens, diameter 40mm and focal length 10cm; 5 metal clips for mounting lenses in the multipurpose holders; 1 diaphragm with 3 holes of diameters 3, 5 and 8mm; and one object letter. Specially designed multipurpose holders of light-weight, moulded plastic have bottom to sit exactly on top of the optical bench with free sliding motion and index mark for reading the position

A heavy duty, sturdy optical bench designed for high end use. Practically all optical bench related experiments can be performed using various accessories. Comprises a triangular metal section supported at each end on cast metal legs. Both the legs provided with leveling screws. On one side, the bench has scale graduated in millimeters for noting the position of riders. Also includes specially designed tilt-proof, smooth sliding riders to sit properly on top of the bench and have index mark to facilitate position reading. The riders have vertical pillar at their top with hole to take various accessories, which can be adjusted for their vertical heights. The height of the accessories and riders is so designed so as provide common optical centers of the accessories for proper experiments. Accessories included are ? 6 Riders, ? 2 Optical pins, ? 2 Lens & Mirror holders, ? 2 Object /Image screen.

Heavy, sturdy metal bench made of a pair of plated metal rods mounted parallel and supported at both ends by cast metal legs with leveling screws. One of the rods has engraved scale graduated in millimeters. Includes heavy cast metal riders with index mark for mounting accessories, with heights of the accessories adjustable. Two of the riders have slow-motion knobs to allow transverse motion of accessories for their axial adjustment/alignment. Includes accessories same as in OPTICAL BENCH METAL PIPE.

Optical bench made of square section aluminium pipe, mounted on a pair of cast metal supports with leveling screws. A scale graduated in millimeters is fixed on top of the square pipe. Includes four specially designed, easy sliding tilt-proof riders with index mark for mounting various accessories, heights of accessories adjustable. Two of the sliders also have provision for transverse motion with fine adjustment knob. Supplied complete with four accessories - two lens holders and two optical pins.

A simple and economical set of components for set);ing up a complete optical bench with the help of a wooden meter rule. All components made of plated sheet metal. The standard set includes following components
? Meter Rule - thick, graduated 0-100cm x 1 mm, with permanently engraved scale, ? Pair of Metal Supports - inverted W-shaped, for securely supporting the wooden meter rule as a base of the optical bench. ? Lens / Mirror Support, 50mm diameter - 2 Nos. ? Screen Support, for vertically supporting cardboard or light metal screens - 1 No. ? Candle Holder, Single Candle - 1 No. ? Object Marker, for use as an image in lens and mirrors experiments - 1 No. ? Screen, rectangular white cardboard, with a millimeter screen along one edge - 1 No.

Optical Bench similar to Cat No. 1110960, but with riders and accessories adapted to work with laser. Supplied complete with following accessories.
? Oiode Laser mounted in suitable enclosure, ? Convex Lens, Concave Lens and Concave Mirror-1 each, ? Diffraction Grating - 1 No., ? Double Slit - 1 No.
? Slit / Grating holder - 1 No., ? Lens Holder-1 No., ? Receiving screen having millimeter grid to facilitate measurements - 1 No., ? Riders - 5 Nos.

Comprising a long wooden baseboard about 14cm wide, with a scale graduated in millimeters. Also included are six riders mounted on free sliding bases, with index marks on one side of the base, for mounting accessories, with heights of the accessories adjustable. Supplied complete with following accessories. ? Lamp house with a 240V, 15W lamp 1 Nos, ? Object screen of 75mm diameter with wire gauze at the center 1 Nos, ? Holderfor lenses 38mm diameter 1 Nos, ? White metal receiving screen 100 x 75mm with a slot for square cardboard screen on the reverse 1 Nos, Object needle 1 Nos, Plane mirror mounted in a frame 100 x75mm.

Comprising a long wooden baseboard about 14cm wide, with a scale graduated in millimeters. Also included are six riders mounted on free sliding bases, with index marks on one side of the base, for mounting accessories, with heights of the accessories adjustable. Supplied complete with following accessories. ? Lamp house with a 240V, 15W lamp 1 Nos, ? Object screen of 75mm diameter with wire gauze at the center 1 Nos, ? Holderfor lenses 38mm diameter 1 Nos, ? White metal receiving screen 100 x 75mm with a slot for square cardboard screen on the reverse 1 Nos, Object needle 1 Nos, Plane mirror mounted in a frame 100 x75mm.

Set of optical components supplied along with light box, available as spares.

A five beam laser, a magnetic protractor and 5 optical bodies are the components of the optics accessories set. With all this geometric optics is a child’s play. COMPONENTS : • Five Beam Laser • Magnetic Protractor • Triangular Optical Body • Biconvex Optical Body (f= +85 mm) • Biconvex Optical Body (f= +135 mm) • Biconcave Optical Body (f= -135 mm) • Trapezoidal Optical Body. LAWS & PRINCIPLES INVESTIGATED : • Bi-concave and bi-convex lenses • Focal length • Refraction • Refraction index • Total reflection • Snell’s law.

Specifications : Size: 124 x 28 x 12 cm – Weight: approx. 6 kg Packing: durable ABS plastic carry case with foam inserts. COMPONENTS : • Stackable Plug Lead (4x), • Lampholder, single • Lampholder, quadruple • Slider for holder, with knob (6x) • Slider for projector, with knob • Holder for 50 mm diam. lenses and mirrors (4x) • Transformer, 12 V 2.5 A • Prism table • Projector with 12 V 20 W halogen lamp • Halogen lamp 12 V 20 W, spare • White metal screen (140 x 140 mm) • Set of 4 Biconvex Spherical lenses (dia. 50 mm) • Set of 4 Biconcave Spherical lenses (diam. 50 mm) • Set of 4 Concave Spherical mirrors (diam. 50 mm) • Set of 4 Convex Spherical mirrors (diam. 50 mm) • Optical bench with supports • Shadow rod • Joly photometer on stem • Bulb lamp, 12 V 2 W (6x) • Set of seven diaphragms • Holder for slides and diaphragms • Millimetre graph paper • Equilateral glass prism (side 25 mm). LAWS & PRINCIPLES INVESTIGATED : • Concave and convex mirror • Convergent and spanergent lens • Focal length • Gauss approximation • The eye, hyperopic and myopic eye • Inverse square law • Joly photometer • Lens power • Luminous intensity • Magnifier and magnifying power • Photometry • Prism • Ray tracing • Refractive index • Umbra and penumbra • System of lenses • The microscope • The telescope • Thin lens equation.

Specifications : Size: 83 x 28 x 12 cm – Weight: approx. 5.5 kg Packing: durable ABS plastic carry case with foam inserts. COMPONENTS : • Hartl Disk • Optical Bench • Universal Base with knob (2x) • Thread adapter for Universal Base (2x) • Slider for Holder with knob (4x) • Slider for Projector with knob • Biconvex Lens for Hartl Disk (f = +85 mm) • Biconvex Lens for Hartl Disk (f = +135 mm) • Biconcave Lens for Hartl Disk (f= -135 mm) • Trapezoidal Prism for Hartl Disk • Triangular Prism for Hartl Disk (90?, 45?, 45?) • Deformable Mirror for Hartl Disk • Plane Mirror for Hartl Disk • Refraction Index Vessel for Hartl Disk, (60 mm dia.) • Polarization Tank, with two Rubber Stopper • Support for Polarization Tank • Pair of polarizing filter • Photometer • Transformer, 12 V 2.5 A • Ray optics and colour mixing box with lamp, coloured filters, slits, mirrors • Base support for ray optics box • White metal screen. LAWS & PRINCIPLES INVESTIGATED : • Principles of bi-concave, bi-convex lenses and mirrors • Mixing colours • Fermat’s principle • Determine the focal length of a lens • Hartl apparatus • Inverse square law of light • Light reflection and refraction • Malus’ Law • Photometry • Prism • Refraction index of a glass and a liquid • Rotation of light • Snell’s Law • Total reflection.

Specifications : Size: 30 x 23 x 7 cm – Weight: approx. 1 kg Packing: comes with a durable ABS plastic carry case with foam inserts. • Laser on stem (630 – 670 nm) • Rechargeable accumulators (2x) • Plug-in power supply • Cylindrical lens • Polaroid filter • Holder for slides and Diaphragms • Plastic base (2x) • Slide with 1 slit (width 0.06 mm, separation 0.20 mm) • Slide with 2 slit (width 0.06 mm, separation 0.20 mm) • Slide with 3 slit (width 0.06 mm, separation 0.20 mm) • Slide with 4 slit (width 0.06 mm, separation 0.20 mm) • Slide with 5 slit (width 0.06 mm, separation 0.20 mm) • Slide with 6 slit (width 0.06 mm, separation 0.20 mm) • Coarse grating 1 (4 lines per mm, line/space ratio 3:1) • Coarse grating 2 (4 lines per mm, line/space ratio 6:1) • Coarse grating 3 (8 lines per mm, line/space ratio 3:1) • Metal gauze 300 mesh for bidimensional diffraction grating • Diffraction grating with three different rulings (100, 300 and 600 lines per mm). LAWS & PRINCIPLES INVESTIGATED : • Diffraction • Diffraction grating • Interference • Multiple slit diffraction • Optical activity • Single slit diffraction.

For demonstrating the relationship between length of air column and frequency of sound produced. A square pipe of polished wood, open, tuned to C1(256), overall length about 760mm.

Similar to ORGAN PIPE, SIMPLE but with varnished wood pipe, having glass front and membrane suspended on cord for loading with sand to show positions of nodes and anti nodes. Overall length about 760mm.

Stoppered, varnished wood with movable piston marked with the chromatic scale from C (512) to (1024). Overall length when fully extended is about 840mm. Can also be used for investigating the phenomenon of beats in conjunction with a second pipe of the same type.

Main features ? 10 MHz bandwidth ? Wide vertical sensitivity and horizontal sweep speed range ? Full size 140mm diagonal CRT with internal graticule ? Fully calibrated - a true measuring oscilloscope ? Simplified control layout and X-Y facilities for Lissajous figures etc. Vertical Deflection System Sensitivity 5mV to 20V per spanision in 1:2:5 sequence via push button attenuator system Accuracy ? 5% Bandwidth DC TO 10 MHz - 3db, DC Coupled 10Hz to 10 MHz - 3db, AC Coupling Input Coupling DC, AC or ground. Max. Input Protection: 400V AC plus peak AC. Horizontal Deflection System Accuracy ? 5% External Horizontal Amplifier Sensitivity 1V per spanision 5%, Bandwidth 10Hz to 1MHz-3db, Input termination Via external tigger input socket (BNC) General Trace rotate control : On side panel, permits approximately 5 of trace rotation. Mains Input 115-220-240V nominal ac, 48 to 62Hz via captive mains lead. Factory pre-set to 240V Consumption 13VA maximum Dimensions 265x 150x390mm (h x w x d) Supplied complete with operating manual and input lead.

Main Features : 20Mhz Dual Trace Oscilloscope, Alternate Triggering, line Trigger & Variable Hold-on, Component & Continuity Tester, 100KHz Function Generator, Sine, Square, Triangle, DC Waveform Outputs, 30MHz Frequency counter & Function Generator, Digital Display for frequency counter & Function Generator, Choice of power supply /Iogic scope / curve tracer / Digital Voltmeter as an additional Built-in Option, Gold plated BNC connectors, Economical & Space Saving, Multi-utility instrument for all labs and an excellent service station Technical Specifications Operating Modes: Channel 1, Channel 2, Channel 1& 2 Alternate or Chopped (approx. 350kHz), X-Y operation (Ratio 1:1 Input via CH2), Add/Sub CH1?CH2, Invert CH2, Vertical Deflection (Y) (Identical Channels): Bandwidth : DC - 20MHz (-3db), DC - 28MHz (-6db), Risetime : 17.5nS (approx), Deflection Coefficients : Microcontroller based 12 calibrated steps 2mV/Div -10V/Div (1-2-5 sequence). Adjustable by up-down keys. Step position indicated by glowing LEDs, Accuracy : ?3%, Hold Off : Variable Control for Stable Triggering, Input Impedance : 1MΩ 30pF (approx), Input Coupling Maximum : DC-AC-GND, Input Voltage : 400V (DC + Peak AC), Timebase Time Coefficients : Microcontroller based 18 calibrated steps, 0.5μS/Div - 0.2S/Div (1-2-5 sequence) with magnifier x 10 to 50nS/Div with variable control to 20nS/Div. Adjustable by up-down keys. Step position indicated by glowing LEDs, Accuracy : ?3% (in Cal position), Ramp output : 5 Vpp (approx), Trigger System Modes : Auto/ Level, Source : CH1, CH2, ALT-CH1/CH2, Line, Ext., Slope : Positive or Negative, Coupling : AC, Line Trigger, Sensitivity Trigger : Int. 0.5mm, Ext. 0.8V (approx), Bandwidth : 40MHz, Horizontal Deflection (CH2? X) Bandwidth : DC-2.3MHz (-3db) Phase, X-Ymode : Shift < 3? at 60kHz, Deflection Coefficients : Microcontroller based 12 calibrated steps 2mV/Div -10V/Div (1-2-5 sequence). Adjustable by up-down keys. Step position indicated by glowing LEDs, Input Impedance : 1MΩ 30pF (approx), Built-in Single Touch Component Tester: Test Voltage Max 8.6V rms (Open) , Test Current Max 8mA rms (Shorted) , Test Frequency : 50Hz, Test circuit grounded to chassis, Continuity Tester : 8eeper sounds < 750 approx. , General Information: Cathode Ray Tube : 140mm Rectangular tube with internal graticule P31 Phosphor, Accelerating Potential : 2kV (approx), Display : 8 x 10cm, Trace Rotation : Adjustable on Front Panel, Calibrator : Square Wave Generator 1 kHz (approx), 0.2V? 1% for probe compensation, Z Modulation : TTL Level, Stabilized Power Supply: All operating voltages including EHT, Mains Voltage : 220 - 240V ? 10%, 50Hz, Power Consumption : 33VA (approx.), Operating Temperature : 0-40 degree C, 90% RH. Accessories Included: Manual, BNC-Test Prod Cable, BNC-Crocodile Cable, a pair ofTest Prods, RS232 Cable and PC Control Software, CD (of Understanding Oscilloscope). Function Generator Modes : Sine, Square, Triangle, (Switchable), Frequency Range : 10Hz to 100 KHz in 4 Steps, Output Voltage : 10Vpp into 500, Sinewave Distortion : ≤3%, Square wave Risetimes: < 150ns, Output Short Circuit Proof, Frequency Counter : Frequency Range : 20Hz-30Hz, Resolution : 10Hz, 10KHz, Sensitivity : 0.5volts, Accuracy : ? (0.5% + 1D) of rdg, Attenuation: 1:1,1:20, Input Coupling : AC, Input Impedance : 1MΩ, Max. Input Voltage : 200 V (DC + AC peak), Display: 4 digit 7 segments LED display, Built-in Options : Logic Scope, Logic Inputs : 8 Nos. (TTL Timing diagrams), Output : To Oscilloscope, Ideal for experiments in Digital Laboratories, Power Supply : Fixed Output Voltage : 5V /500 mA, +12V /150 mA -, 12V /250 mA, Ripple : ≤ 8mV rms, Tolerance : ?0.2V, Line Regulation : 2%, +5V is floating & +12V has common ground but floating from scope chassis. Digital Voltmeter: Range : 2V, 20V and 200V, Resolution : 1mV, 10mV, 0.1V, Max. Input : 500V pp for 20V & 200V, 100Vpp for 2V, Input Impedance : 10mΩ, Curve Tracer: Vce Scan Voltage : 0- 35 V adjustable, Step Base current : 20μA each Step, Step Amplitude 0.5Volts, No. of steps : Adjustable 0 to 7, Step Polarity : Automatically selected with PNP/NPN selection On, Display : OscilioscopeviaY Input-Ch1 &X lnput-Ch 2.

Main features ? Microcontroller based ? Super bright LED display for showing Volts & Time/Div. ? RS232 Interface and PC Software
? x10 Magnification ? 20ns maximum sweep speed ? Stable triggering up to 40MHz ? Alternate triggering ? Variable hold off and Line triggering ? Component and Continuity Tester ? Sharp Trace CRT and Auto Focus ? Built in Options (available optionally) : Function Generator, Frequency Counter, Power Supply, Digital Voltmeter, Curve Tracer, and Logic Scope.
Technical Specifications : Operating Modes Channel 1, Channel 2, Channel 1&2 Alternate or Chopped (approx. 350kHz), X-Y operation (Ratio 1:1 Input via CH2), Add/Sub CH1 ?CH2, Invert CH2 Vertical Deflection (Y) (Identical Channels : Bandwidth DC- 20MHz (-3db), DC - 28MHz (-6db), Risetime 17.5 nS (approx), Deflection Coefficients: Microcontroller based 12 calibrated steps 2mV/Div -10V/Div (1-2-5 sequence). Adjustable by up-down keys. Step position indicated by glowing LEDs'. Accuracy ?3%, Hold Off - Variable Control for Stable Triggering, Input Impedance - 1 MΩ 30pF (approx), Input Coupling - DC-AC-GND, - Maximum Input Voltage - 400V (DC + Peak AC), Time Base - , Time Coefficients - Microcontroller based 18 calibrated steps, 0.5?S/Div - 0.2?S/Div (1-2-5 sequence) with magnifier x 10 to 50nS/Div with variable control to 20ns/Div. Adjustable by up-down keys. Step position indicated by glowing LEDs., Accuracy - ?3% (in Cal position), Ramp output - 5 Vpp, (approx), Modes - Auto/Level, Source - CH1, CH2, ALT-CH1/CH2, Line, Ext., Slope - Positive or Negative , Coupling - AC, Line Trigger, Sensitivity - Int. 5mm, Ext. 0.8V (approx), Trigger Bandwidth - 40MHz, Horizontal Deflection Bandwidth - DC - 2.3MHz (-3db), X-YMode - Phase Shift < 3? at 60kHz. Deflection Coefficients: Microcontroller based 12 calibrated steps 2mV/Div -1 OVIDiv [1-2-5 sequencel. Adjustable by up-down keys. Step position indicated by glowing LED?s, Input Impedance : 1 MO 1130pF [approx), Built-in Single Touch Component Tester : Test Voltage : Max B. 6V ~ [Open), Test Current : Max Bm~ [Shorted), Test Frequency : 50Hz, Test circuit grounded to chassis, Continuity Tester : Beeper sounds < 750 approx., General Information : Cathode Ray Tube : 140mm Rectangular tube with internal graticule P31 Phosphor, Accelerating Potential: 2kV [approx), Display : B x 10cm, Trace Rotation : Adjustable on Front Panel, Calibrator : Square Wave Generator 1 kHz [approx), O. 2V?1 % for probe compensation, Z Modulation : TILlevel, Stabilized Power Supply: All operating voltages including EHT, Mains Voltage : 230V ? 10%, 50Hz , Power Consumption : 33VA (approx.), Operating Temperature: 0-400C, 90% RH. Accessories Included: Manual, BNC-Test Prod Cable, BNC-Crocodile Cable, a pair ofT

Main features : Microcontroller based, Digital Readout with backlit LCD displays Volts/Div and Time/Div settings, RS232 Interface and PC Software, 2 Channel, 4 Trace Display permits simultaneous viewing of original and expanded signals for quick analysis, - 25MHz Bandwidth, x10 Magnification, 20nS maximum sweep speed, Stable triggering up to 50MHz, Alternate triggering, Variable hold off and Line triggering, Component and Continuity Tester, Sharp Trace CRT and Auto Focus, Graticule illumination. Technical Specifications : Operating Modes: Channel 1, Channel 2, Channel 1 & 2 Alternate or Chopped (approx. 350kHz), X-Y operation (Ratio 1:1 Input via CH2), Add/Sub CH1?CH2, Invert CH2 Vertical Deflection (Y) (Identical Channels) : Bandwidth : DC- 25MHz (-3db), DC - 35MHz (-6db), Risetime :12nS (approx), Deflection Coefficients : Microcontroller based 12 calibrated steps 5mV/Div - 20V/Div (1-2-5 sequence). Electronic Control. Display on 32 character backlit alphanumeric LCD. Accuracy : ?3%, Hold Off : Variable Control for Stable Triggering, Input Impedance : 1MΩ 30pF (approx), Input Coupling : DC-AC-GND, Maximum Input Voltage: : 400V (DC + Peak AC), Timebase Time Coefficients : Microcontroller based 18 calibrated steps, 0.5μS/Div - 0.2S/Div (1-2-5 sequence) with magnifier x 10 to 50nS / Div with variable control to 20nS / Div. Electronic Control. Display on 32 character backlit alphanumeric LCD. With ALT / NOR switch magnified sweep and normal sweep can be seen simultaneously. Accuracy : ?3% (in Cal position), Ramp output : 5 Vpp (approx), Trigger System - Modes : Auto/Level, Source : CH1, CH2, ALT-CH1 /CH2, Line, Ext, Slope : Positive or Negative, Coupling : AC, Line Trigger, Sensitivity : Int 0.5mm, Ext. 0.8V (approx), Trigger Bandwidth : 50MHz, Horizontal Deflection : Bandwidth : DC-2.5MHz (-3db), X-Ymode : Phase Shift < 3? at 60kHz, Deflection Coefficients : Microcontroller based 12 calibrated steps 5mV/Div - 20V/Div (1-2-5 sequence). Electronic Control. Display on 32 character backlit alphanumeric LCD. Input Impedance : 1MΩ 30pF (approx), Built-in Single Touch Component Tester Test Voltage : Max 8.6Vrms (Open), Test Current : Max 8mA rms (Shorted), Test Frequency : 50Hz, Test circuit grounded to chassis, Continuity Tester : Beeper sounds < 750 approx., General Information Cathode Ray Tube : 140mm Rectangular tube with internal graticule P31 Phosphor, Accelerating Potential : 2kV (approx), Display : 8x10cm, Trace Rotation : Adjustable on Front Panel, Calibrator : Square Wave Generator 1kHz (approx), 0.2V?1% for probe compensation, Z Modulation : TTL Level, Stabilized Power Supply : All operating voltages including EHT, Mains Voltage : 230V ? 10%, 50Hz, Power Consumption : 33VA (approx.), Operating Temperature : 0-40 degree C, 90% RH. Accessories (included Manual, BNC-Test Prod Cable, BNC-Crocodile Cable, a pair of Test Prods, RS232 Cable and PC Control Software, CD (of Understanding Oscilloscope).

Specially designed for demonstrations, teaching, investigations and test work. The circuit is easy and layout carefully planned for easy operation. Both focus and intensity controls are provided to give sharp and clear trace. Input is selected via socket provided on front panel. The sockets are marked with circuit diagram to explain the significance of AC and DC coupling. Highly reliable for students use

Comprises a p-n-p junction bipolar transistor mounted in the plastic casing. useful for studying the transistor characteristics and its functioning in different circuits.

Specifications : Size: approx. 14 x 7 x 20 cm each – Weight: approx. 0.4 kg each. A pair of mounted tuning forks for interference and resonance experiments. Tuning forks are a standard tool in school laboratories helping students to understand the relationship between wave frequency and pitch. The tuning forks can be used to perform several experiments. Ideal for determining the wave frequency (can be used with a data logger and sound sensor) and the pitch. These high quality aluminium forks are mounted on a base to enhance the resonant sounds. Complete with rubber mallet. COMPONENTS : • LA3 tuning fork (2x) • Resonance box for tuning forks (2x) • Rubber mallet • Sliding masses on fork. LAWS & PRINCIPLES INVESTIGATED : • Use of the tuning forks • Resonance • Interference • Beats.

For exploring the concept of resonance through sympathetic and forced vibrations, and phenomenon of beats. Comprises two matched nickel plated tuning forks of frequency A(426.6), each mounted on top of hollow wooden box open at one end. One fork is provided with a sliding mass on one prong by means of which its frequency can be varied from the nominal 426.6Hz. When both forks are sounded a clearly audible 'beat' is produced, its rate depending upon the difference in frequency between the forks.

A Round: Unbreakable, moulded, ABS Plastic Black Case; Accuracy ?2.0 FSD; Scale Length about 50mm with knife edge pointer, with or without anti-parallax mirror scale; Overall Size about BOmm round; flush type mounting.

B Square: Unbreakable, moulded, ABS Plastic Black Case; Accuracy ?2.0 FSD; Scale Length about 50mm with knife edge pointer, with or without anti-parallax mirror scale; Overall Size about 65 x 65mm square; rear type mounting.

C Square: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about 60mm with knife edge pointer, with or without anti-parallax mirror scale; Overall Size about 72x72mm square; rear type mounting.

D Square: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about 60mm with knife edge pointer, with or without anti-parallax mirror scale; Overall Size about 72x72mm square; flush type mounting.

E Rectangular: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about B5mm with knife edge pointer, with or without anti-parallax mirror scale; Overall Size about BOx 1 OOmm rectangular; flush type mounting.

For the study of principle of capacitors and the relationship between surface area of conducting plates, separation and dielectric medium between the two plates. Comprises of two circular metal plates, about 200mm in diameter mounted on an insulated base. The plates can slide in the narrow lot provided on top of the base to adjust separation between them from 0 to 200mm. The plates are electrically connected to a pair of 4mm shrouded sockets for electrical connections.

A simple device for exploring the principle of capacitance, its relationship between charge and voltage, and its dependence on surface area of conductors, separation and dielectric medium between the two plates. Comprises two circular metal discs, each fixed on an insulated handle and mounted on vertical pillars parallel to each other. The metal plates have a terminal at their back for electrical connection. The discs can be adjusted for altering distance between them. Complete assembly mounted on nonskid base.

Parallel Plate Capacitor, Circular Metal Discs: attached to insulating pillar mounted on a base, simple and economical

A pair of metal plates mounted on adjustable insulated supports sliding on aluminium extruded section for adjusting the distance between two discs which can be easily known by reading their respective positions along the scale fixed on the aluminium section. Aluminium section supported on each end on stable legs

For demonstrating the concept Parallelogram and polygon law of forces, and Lami's theorem. Also shows the static equilibrium under the effect of various forces. Comprises board of size about 65 x 50cm, with two aluminium pulleys, 50mm diameter, on clamp, for mounting on board in any desired position. Complete with three mass hangers and 12 slotted masses, each of 50g each.

Pascal’s Apparatus has been designed to easily demonstrate that the pressure in a vessel is the same in every direction. The apparatus is mounted in a strong shock resistant plastic base. Specifications : Size: approx 150 x 200 x 250 mm.

Comprising a base with aperture on the underside and on top of which may be attached anyone of the set of 4 glass vases having different shapes / sizes but identical bottom openings. A lever arm pivoted to the vertical support rod has a pressure disc on one end to close the aperture and a counterpoise pan. A vertically adjustable index pointer provided for adjusting liquid level in the vases. Complete apparatus mounted on a stable base.

Specifications : Size: 24 x 28 x 55 cm – Weight: approx. 4.5 kg. The Pellat Apparatus is specifically designed to study the independence of hydrostatic pressure from the shape of the vessel. The apparatus is provided with glass cones of different shapes in order to study this principle. A specifically designed pump system allows us to compare the pressures of different shapes. The apparatus is composed of a supporting panel on which a cylindrical support is used to hold the various shaped containers. COMPONENTS : • Hoffman clip • Support for Vesseles Spare • Membrane Set • Glassworks Set • Tubes Set • Carrier Structure • U-Tube Manometer. LAWS & PRINCIPLES INVESTIGATED : • Hydrostatic pressure • Communicating vessels principle.

For Wheatstone bridge and potentiometer work, with insulated handle, plated brass contact, and a plated brass terminal with 4mm Socket. Dveralilength about 120mm approx.

Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter

Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter

Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter

Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter

Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter

Spherical balls of different materials, with hook for suspension. Meant for use in pendulum experiments. Available in Brass, Copper, Iron, Lead, Aluminium and sizes 13, 19 and 25mm diameter

Connects to any vertical or horizontal rod support up to 18mm. L shaped plated metal strip has three knobs along its length with respective holes for mounting up to 3 pendulums on the same horizontal line and adjusting their height. The smaller arm of the metal strip has a boss attached to it for clamping securely on a rod support.