Lens Double Spherical Supplier, Lens Double Spherical India, Lens Double Spherical Manufacturer, Lens Double Spherical, Lens Double Spherical Exporter, Gupta Agencies

Physics instruments
Chemistry instruments
Biology instruments
Soda glassware
Borosil glasswares
Plasticware lab
Models
- Anatomical models
- Nursing models
- Biological models
Geography lab
- Demostrational models
Working models
Porcelainware lab
Microscopes
- Software
- Digital microscope camera
- Digital microscope
- Microscope
Audio visual list
- Transparencies
- Projector slides
- Potraits
Specimans
Math lab instruments
- Geometry 3d
  - 3d solid set 10 cm
  - 3d solid set 5 cm
  - Hollow sphere
  - Hollow cylinder
  - Volume relationship set
  - Volume relation between cone and cylinder
  - Volume relation between cube and sphere
  - Formation of tetrahedron
  - 3d paper net
  - Polyhydron and there net
  - Vertex wonder
- Trignomatry
  - Clinometer
  - Theodolite model
  - Trignometry board kit
  - Sextant
- Pattern & blocks
  - Pattern block classroom set foam
  - Tangrams
  - Pattern making of triangle
  - Pattern block plastic
  - Pattern block (student set)
  - Sit & set
  - Pentominoes
  - Fraction from pattern block
- Classroom kits
  - Maths kit junior-i
  - Maths kit junior-ii
  - Maths kit senior-i
  - Maths kit senior-ii
- Theorems
  - Junior pythagoras theorem
  - Senior pythagoras theorem magnetic
  - Pythagoaros theorem by reverse method
  - Pythagoras theorem by small square
  - Working model of pythagoras theorem
  - Mensuration kit
  - Ring of theorems
- Base ten blocks
  - Base ten block
  - Base ten stamp set
  - Classroom base ten set
  - Magnetic base ten block
- Sorting
  - 2d shape
  - Pattern block (foam)
  - Attribute block
  - Sorting ring
- Time
  - Dummy clock
  - Student clock write and wipe
  - Geared teacher clock
  - Student time indicator
  - Time & work kit
  - Geared student clock
  - Palm clock
  - Stop watch
- Geometry manipulative
  - Triangle kit
  - Exterior angle of regular polygan
  - Construction of parabola
  - Angel property of cyclic quadrilateral
  - Angel sum property of triangle
  - Co-ordinate board
  - Angel sum property of quadrilateral
  - Ratio of area of similar triangles
  - Optical squares
  - Cross vertical staff
- Circle
  - Circle kit
  - Ring of theorems
  - Derivation of pie
  - Magic ring
- Geometry geo board and peg brand
  - X y axes co-ordinate geoboard
  - Geoboard (transparent) 11x11 flat head peg grid
  - Flip n fraction geoboard with circle cuts
  - Isometric geoboard
  - Circular geoboard
  - Large geoboard
- Chart
  - Arithmetic charts set of 7
  - Upper primary charts set of 15
  - Polyart chart set of 5
  - Pvc chart set of 3
- Cubes
  - 2cm interlocking cubes
  - 2cm interlocking cubes
  - 2cm interlocking cubes
  - 1cm interlocking cubes
- Geometry 2d
  - 2d shape gm 400
  - Stenciles
  - Plastic moulds
  - Teacher geometry box
  - Jumbo geometry box (transparent & magnetic)
- Identities
  - Inter locking cubes
  - Algebra kit (foam)
  - (a+b+c)2
  - (a+b)2-(a-b)2=4ab
  - Student identity kit (a+b)2,(a+b)2,a2-b2
  - Algebra tiles
- Number concept
  - Number planet
  - Decimal plate
  - Cuisenaire strips
  - Power of 2
  - Factorization tiles
  - Thick stick set 1-10 cm
  - Integer counter
  - Integer number line bar
  - Hook n look numerical balance
  - Roman number kit
- Place value
  - Frame abacus (wooden) with beads
  - Counting abacus (wooden) with 55 beads
  - Game of place value
  - Decimal abacus
- Data & finanace
  - Dummy currency
  - Dummy cheque book & pay in slip
  - Plastic dice
  - Transparent dice
- Board game laminated
  - Place value board
  - Place value
  - Ascending card game
  - Descending card game
  - Division board
  - Factor board
  - Integer board game (with dice & counters)
  - Graph board game
  - Co-ordinate geo board
- Counting
  - Marbles
  - Integer counters
  - Magnetic counters
  - 2 color counter dia 30 mm
  - Counters
  - Counters dia 30mm
  - Unit cubes
  - Counter tiles
  - Number mat
  - Stacking counters
  - Skip counting
  - Magnetic numbers
- Measurement
  - Measuring tape (1 meter)
  - Measuring tape (15 meter)
  - Vernier caliper
  - Metric wheel
  - Measurment tape 3mtr
  - Magnifying measure
  - Half meter scale (wooden)
  - Folding meter sticks (plastic)
  - Bucket balance
  - Pean balance
  - Number planet
  - Hexagonal weight set
  - Kitchen balance
  - Spring balance
  - Fil o fun weighing scale
  - Balance with bear family weight set
  - Dish balance with (weighted number and weights)
  - Wall thermometer
  - Chemical thermometer
  - Rain gauge
  - Setp n count with (measuring counter )
  - Cup set
  - Jug & beaker set
- Geometry geo sticks
  - Geo geometry sticks
  - Geometry kit
  - Multi purpose geo sticks type 1
  - Multi purpose geo sticks type 2
  - Multi purpose geo sticks type 3
  - Multi purpose geo sticks type 4
- Fractions
  - Magnetic fraction disk
  - Non magnetic fraction disk
  - Fraction squares
  - Designer fraction
  - Fraction bar
  - Wings of ring
  - Fraction wheels foam
  - Phases fraction
  - Plastic fraction disk
Charts
- Electrical engineering
- Applied sciences
- Mechanical engineering
- Bio-technology
- Computer science
Mechanical instruments
Electronic instruments
- Instrumentation lab
  - Load cell (strain guage) trainer
  - Pressure measurement trainer
  - Measurement of displacement using lvdt
  - Measurement of temperature using r.t.d.
  - Measurement of temperature using thermocouple
  - Measurement of distance using magnetic pickup
  - Sample & hold trainer
- Filter curcuits
  - T type passive low pass, high pass, band pass & band stop filters
  - m-derived t type passive low pass & high pass filter
  - Pie type passive low pass , high pass, band pass & band stop filter.
  - Study of active filters (first order low pass, second order low pass & second order high pass filter) using op-amplifier
  - T, pie & bridge t type attenuators
  - transient response of rlc circuit with built-in square wave oscillator
  - Cascaded two port network
  - Rc, low pass, high pass, band pass & band stop filters
  - 200410 study of symmetrical & asymmetrical networks.
- Power supplies
  - Dual channel continuously variable dc regulated power supplies
  - Single channel continuously variable dc regulated power supplies
  - Dc regulated power supplies
  - Dc regulated power supply for electrophoresis apparatus
  - Dc regulated power supply for diode/triode valve characteristics
  - Dc regulated power supply for tetrode/pentode valve characteristics apparatus
  - Dc regulated power supply for millikans oil drop apparatus
  - Low tension ac/dc power supply 0-25vac/10a, 0-25vdc/10a
  - Dc source 0-12vdc/10amp (suitable for kelvin bridge)
  - Battery eliminators
  - Dc regulated battery eliminators
  - Step down transformers
  - Battery chargers
  - Step down transformer for general instruments
  - Ac/dc power supplies
  - Dc regulated power supplies
- Control system lab
  - Stepper motor controller with microcontroller interface
  - Synchro transmitter / receiver trainer
  - Potentiometric error detector.
  - Magnetic pick up system ( positive & negative)
  - Magnetic pick up system (series & parallel)
  - Light intensity control system
  - Speed torque characteristics of ac servomotor
  - Speed torque characteristics of dc servomotor
  - Linear system simulator
  - Temperature system simulator
  - Pid controller
  - Advanced pid controller with microcontroller.
  - Compensation design system.
  - Dc speed control system
  - Digital control system
  - Ac motor position controller
  - dc motor position controller
  - Relay control system
- Bread boards trainers
  - Bread board with power supplies (general purpose)
  - Bread board
  - Operational amplifier kit (bread board model)
  - Digital electronic circuit trainer (bread board model)
- Ac bridges
  - Andersn bridge
  - Schering bridge for capacity measurement
  - Industrial kelvin double bridge to measure small values resistance of 0.2 micro ohm to 11ohm
  - Kelvin bridge(student)
  - Maxwell inductance bridge
  - Weins bridge (capacity measurement)
  - Weins bridge (frequency measurement)
  - Wheatstone bridge (portable)
  - Desauty bridge
  - Carry foster slide wire bridge
  - Religh bridge
  - Owen bridge
  - Hay bridge
  - Lcr / ac bridge
  - Null detector digital
- Electronic components display boards
  - Electronic components display boards
  - Study of different resistors & colour coding
  - Study of different potentiometer
  - Study of different capacitors & colour coding
  - Study of different switches
  - Study of different band switches
  - Study of different diodes
  - Study of different transistors
  - Study of different wires & cable
  - Display board on different ics
- Oscillators experiment
  - Hartley oscillator
  - Colpitts oscillator
  - Phase shift oscillator
  - Wein bridge oscillator using operational amplifier ic 741
  - Wein bridge oscillator using transistor
  - Relaxation oscillator using ujt
  - Study of crystal oscillator
- Digital panel meters & decade boxes
- Operational amplifiers trainers
  - Operational amplifier as inverting & non inverting amplifier
  - Applications of operational amplifier
  - Operational amplifier trainer
  - Study of characteristics of operational amplifier
  - Operational amplifier as differentiator & integrator
  - Study of operational amplifier as schmitt trigger
  - Study of operational amplifier as sine to square wave convertor
  - Study of operational amplifier as square to triangular & triangular to square wave convertor
  - study of operational amplifier as clipping and clamping circuit
  - Study of operational amplifier as v to i & i to v convertor
  - Study of operational amplifier as voltage and current feed back amplifier
  - Study of instrumentation amplifier
  - Study of logrithmic amplifier
  - Op amp. as voltage comparator
  - Linear wave shaping circuits
- Microwave lab experiments
  - Experiments of reflex klystron
  - Experiments on gunn diode
  - Experiments to measure the polar pattern & gain characteristics of the antena.
  - Experiment to measure dielectric constant of solids & liquid and to measure phase shift & q of a cavity.
  - study of microwave components (magic t, directional coupler, isolater, circulator)
  - Vswr meter
  - Power meter 8.2 ghz.~ 12ghz
  - Power meter 10 mhz.~ 18ghz
- Communication lab training modules
  - Study of amplitude modulation & demodulation
  - Study of ask (amplitude shift keying) modulation & demodulation
  - Study of frequency modulation & demodulation
  - Study of fsk modulation & demodulation
  - Study of pulse amplitude modulation & demodulation
  - Study of pulse width modulation & demodulation
  - Pam / ppm / pwm modulation & demodulation
  - Phase modulation & demodulaion
  - Phase shift keying (psk) modulation & demodulation
  - Time division multiplexer (tdm)
  - Pulse code modulation & demodulation
  - Study of pulse position modulation & demodulation
  - Delta modulation & demodulaion
  - Analog fibre optic trainer
  - Adaptive delta modulation & demodulation
  - Single side band modulation & demodulation
  - Analog signal sampling and reconstruction kit
  - Frequency division multiplexer and demultiplexer
  - Tdm pulse code modulation transmitter trainer
  - Tdm pulse code modulation receiver trainer
  - Qpsk modulator & demodulator trainer
  - Dsb/ssb am transmitter trainer
  - Dsb/ssb am receiver trainer
  - Gsm trainer
  - Mobile phone trainer
  - transmission line trainer
- Analog lab training modules
  - H parameters of pnp transistor in common emitter mode
  - Transistor characteristics apparatus with regulated power supply
  - Planks constant apparatus
  - Photo cell characteristics apparatus
  - Tetrode/pentode valve characteristics apparatus with dc regulated power supplies
  - Ionization potential of mercury using thyratron valve 2d21/2051
  - Thyratron valve characteristics apparatus using thyratron valve 2d21
  - Triode valve characteristics apparatus with dc regulated power supply
  - Hall effect experiment
  - Work function of diode (richardson law)
  - Diode valve characteristics apparatus with dc regulated power supply
  - Microphone & louds peaker trainer characteristics of a microphone & loudspeaker system regarding frequency response
  - Transistor characteristics apparatus (ce pnp)
  - Transistor characteristics apparatus (ce npn
  - Transistor characteristics apparatus (cb pnp)
  - Transistor characteristics apparatus (cb npn)
  - Pn junction diode / semiconductor diode characteristics apparatus with regulated power supplies
  - Pn junction diode / semiconductor diode characteristics apparatus with regulated power supplies
  - Zener diode characteristics apparatus (forward & reverse v-i characteristics).
  - Voltage stabilization characteristics of zener diode
  - Zener diode characteristics & voltage stabilization
  - Pn junction/zener diode/led characteristics apparatus ( forward & reverse v-i characteristics)
  - Energy band gap of pn junction diode
  - Thermistor characteristics apparatus
  - Resistivity of semiconductors by four probe method at different temperatures & determination of bandgap
  - Scr characteristics apparatus with regulated power supply
  - Ujt characteristics apparatus with regulated power supplies
  - Ujt characteristics apparatus and ujt as relaxation oscillator
  - Fet characteristics apparatus with regulated power supplies
  - Mosfet characteristics apparatus with regulated power supplies
  - Igbt characteristics apparatus with regulated power supplies
  - Diac characteristics apparatus with two meters & regulated power supply
  - Triac characteristics apparatus with regulated power supplies
  - Characteristics & applications of basic thyristors
  - Ldr characteristics apparatus
  - Led characteristics apparatus
  - photo diode characteristics apparatus
  - Photo transistor characteristics apparatus
  - Characteristics of opto electronic devices
  - Solar cell characteristics apparatus
  - Characteristics & application of semiconductors & thyristors (scr, diac, traic, ujt, mosfet, fet, bjt, diode & zener)
  - Tunnel diode characteristics apparatus
  - measurement of peak, average & rms value of a ac signal
  - Verification of kcl and kvl
  - Resistances in series & parallel apparatus
  - Ohms law apparatus
  - Ohms law apparatus. (with power supply)
  - Charging & discharging of condensor
  - Flashing & quenching of neon apparatus
  - Bh curve apparatus
  - Conversion of galvanometer into a voltmeter
  - Conversion of galvanometer into a ammeter
  - Conversion of galvanometer into a voltmeter & ammeter
  - voltage doubler & tripler circuit
  - Lcr resonance apparatus
  - Lcr resonance circuit with built in sine wave oscillator
  - Lcr impedence circuit apparatus
  - Rc circuit as high pass & low pass filters
  - Clipping & clamping circuit apparatus
  - Clipping circuit apparatus
  - Clamping circuit apparatus
  - Half wave/full wave & bridge rectifier apparatus
  - Ripple factor apparatus
  - study of voltage regulation using ic 317
  - Study of voltage regulation using zener diode & transistors
  - Study of voltage regulation using 78 series voltage regulators
  - Study of lr circuit with a source of alternating e.m.f
  - Study of switching action of a transistor(bjt)
  - Electronic component & valves mounted on board
- Network theorems
  - Verification of network theorem
  - Verification of superposition theorem.
  - Verification of norton s theorem.
  - Verification of thevinin theorem.
  - Verification of tellegan theorem.
  - Verification of maximum power transfer theorem
  - Verification of milliman theorem.
  - Verification of reciprocity theorem.
  - Verification of reciprocity theorem.
  - Verification of norton & thevinins theorems.v
- Digital lab training modules
  - Study of logic gates using ttl ics (7 in 1)
  - Study of logic gates using ttl ics (6 in 1)
  - Basic logic gates using discrete components (5 in 1)
  - Study of rtl logic gate (5 in 1)
  - Verification of boolean identities, logic gates & demorgans theorems
  - Verification of demorgans theorems
  - Verification of truth tables of logic gates using universal gates (nand & nor gates)
  - Study of 4 bit adder and subtractor
  - Study of adders & subtractor using or, ex-or, and & not gates
  - Digital trainer to verify half adder & full adder
  - Digital trainer to verify adders & subtractors using nand gates
  - Digital trainer to study & verify truth tables of flip flops using ttl ics and nand gates
  - Study & verify truth tables of jk & jk master slave flip flop
  - Study of left, right & programmable shift register
  - Study of encoder & decoder circuits
  - Study of 4 bit counters (synchronous & asynchronous)
  - Study of 16 to 1 line multiplexer & 1 to 16 line demultiplexer
  - Analog to digital (a/d) convertor
  - Digital to analog (d/a) convertor using r-2r network
  - Digital to analog (d/a) convertor using weighted register network
  - Study of arithmatic logic unit (alu)
  - Ram circuit using ic 7489
  - Study of parity generator/checker
  - Ttl-cmos & cmos -ttl interfacing
  - Ttl ic characteristics apparatus
  - Cmos ic characteristics apparatus
  - Twin-t active notch filter using operational amplifier
- Testing & measuring instruments
  - Cro 10mhz, single trace
  - Cro 20mhz, dual channel, 2 trace
  - Cro 30mhz, dual channel, 2 trace
  - Cro 60mhz, dual channel, 2 trace
  - Cro 30mhz, dual channel, 2 trace with component tester
  - Dso 25mhz (colour lcd display)
  - Dso 60 mhz (color lcd display)
  - Dso 100 mhz (color lcd display)
  - Vaccum tube volt-ohmmeter (vtvm)
  - Eprom programmer
  - Eprom eraser
  - Micro-controller programmer
  - Stroboscope (50~40000fpm)
  - Distortion factor meter 20hz~20khz
  - Flux meter
  - Output power meter
  - Lcr q meter
  - Millivoltmeter ac
  - Signal tracer
  - Signal injector
  - Sweep generator with x-y display with marker/wobbuloscope
  - Pattern generator (black & white)
  - Pattern generator (colour)
  - Digital ic tester
  - Analog ic tester
  - Universal ic tester
- Dynamic demonstrators & trainers
  - Cro trainer 10 mhz
  - Cro trainer 20 mhz
  - Colour tv trainer (with 20" crt)
  - Vcd demonstrator
  - Dvd demonstrator
  - stereo tape recorder demonstrator
  - Function generator demonstrator
  - Fm receiver demonstrator
  - Am radio receiver demonstrator (two band)
  - Ups trainer demonstrator
  - Smps demonstrator
  - Epabx trainer
  - Telephone trainer
- Multivibrators trainers
  - Applications of ic 555
  - Monostable multivibrator using ic 555
  - Monostable multivibrator using transistors
  - Astable multivibrator using ic 555
  - Astable multivibrator using transistors
  - Bistable multivibrator using ic 555
  - Bistable multivibrator using transistors
  - Monostable & free running multivibrator using ic 555
  - Monostable & free running multivibrator using transistors
- Microprocessor lab
- Pcb designing lab
  - Film making unit
  - Pcb curing/oven machine
  - U.v. exposure machine double sided
  - Photoresist dip coating machine
  - Pcb etching machine
  - Roller tinning machine
  - Pcb drilling machine
  - Pcb shearing machine
  - Dye/developer (2 in 1 unit)
  - Art work table
  - Dry film laminator
  - Proto-developers/stripper
  - Pth plant (thru hole plating system)
- E/m experiments
  - E/m by thomson method
  - E/m by helical method
  - E/m by short solenoid method.
  - E/m by magnetic focusing method
  - E/m by millikans oil drop method
  - Gm counter experimental setup
- Function generators
- Physics lab experimental setups
  - Http://server/ambalaelectronicinstruments/physics-lab-experimental-setups.html
  - Lissajous figure apparatus
  - Stefan constant apparatus
  - Dielectric constant apparatus (solid & liquid)
  - Calibration of voltmeter using potentiometer
  - Calibration of ammeter using potentiometer
  - Laser experimental set up (he-ne laser)
  - Laser experimental set up (diode laser)
  - Diode laser 5mw
  - He-ne laser 2mw
  - Michelson interferometer based on model developed by hilger & watts (london)
  - Ultrasonic interferometer (to measure ultrasonic velocity in liquids)
- Amplifiers characteristics
  - Common emitter transistor amplifier
  - Common base transistor amplifier
  - Common collector (emitter follower) transistor amplifier
  - Two stage rc coupled transistor amplifier (frequency response)
  - Study of transistor amplifier circuits (ce, cb & cc modes)
  - Fet common source amplifier
  - Transistor push pull amplifier
  - Study of darlington pair amplifier.
  - Study of class a, b, ab and push pull amplifier
  - Biasing of transistor in class a operation
  - Biasing techniques of transistor (bjt)
  - Complementary symmetry amplifier
Clinical lab instruments
Pharmacy instruments
Oil & petroleum instruments
Civil and survey instruments
- Drawing instrument
- Ranging rod
- Total station
- Prismatic compass
  - Prismatic compass 4 inch diameter full brass in p.v.c box and wooden stand
  - Prismatic compass 4 onch diameter full brass inp.v.c box and aluminium rigid/ folding stand
- Level
- Planimeter
  - Planimeter 45"
  - Planimeter 25"
- Barigo made in gemany
  - Cat. no. 44. altimer,compass,dual time,dual alam,barometer with garph thermometer weather meter with sigh
- Survey chain
- Survey instrument
- Survey umbrella (magnetic type)
  - Tilting type 1.5 mtr
  - Tilting type 2.5 mtr
- Optical square
- Levelling staff
- Tripod stand
- Digital distance meter
- The odolite
- Abney level
- Railway instrument
- Drawing board
Diagnostic lab instruments
- Karl fisher titrimeters
  - Auto karl fisher titrimeter-with led
  - Auto karl fisher titrimeter
- Bio-chemistry analyzer
  - Semi auto biochemistry analyser
- Colony counters
  - Digital colony counter-3 digit
  - Digital colony counter-4 digit
- Digital ph meters
- Water/soil testing kits
- High pressure liquid chromatograph(hplc)
  - Hplc isocratic system
  - Hplc binary gradient system
- Flame photometers
  - Digital flame photometer (single channel)
  - Digital flame photometer (dual channel)
- Digital spectrophoto meters
- Potentiometer
  - Digital potentiometer
- Conductivity meters
- Tds/salinity meters
- Photo colorimeters
- Turbidity meters
- Melting point apparatus
  - Automatic melting point apparatus
  - Digital melting point apparatus
- Dissolved oxygen meters
- Microprocessor viscometer
  - Digital viscometer
  - Adigital automatic polatimeter
- Digital friability apparatus
  - Digit friability test apparatus (double drum)
  - Digit friability test apparatus (single drum)
- Uv-vis spectrophoto meters
Construction lab instruments
Fluid mechanics lab instruments
Chemicals

Lens double spherical 8006148