Chart No	Title	Price Code
	E 1	Boilers: Fire Tube. Presents Flame, Cyclone and Fluidized bed combustions with Lancashire, simple vertical tube, locomotive and Cochran Boilers.	C
	E 2	Boilers: Water Tube. Shows steam generation and water circulation in multiple drum bent Tube, cross drum, longitudinal, benson, lament and high pressure boilers with methods of improving efficiency.	C
	E 3	Boilers: Mountings & Accessories. Describes water level indicator, pressure gauge, pressure reducing valve, safety valves, steam separator, economiser and injector.	C

Mechanical Engineering: Turbines

	Chart No	Title	Price Code
	E 14	Steam Turbines. Depicts simple steam power plant, Impulse wheel, velocity compounded, pressure compounded, pressure velocity compounded turbines, steam flow through reaction turbine blades and a double motion radial flow reaction turbine.	C
	E 15	Steam Power Plant Cycles. Presents steam generating plant, open and closed regenerative rankine cycles, super critical vapour cycle and binary vapour cycle.	C
	E 16	Gas Turbines. Features the operation of a simple Gas turbine, subsonic and super sonic states, idealised regenerative brayton cycle with inter cooling and reheat, idealised turbo engine and Turbo Prop Engine.	C
	E 17	Hydraulic Turbines: Schematic Diagrams. Shows schematic diagrams of Hydraulic Trubines, Radial Flow, and Francis Turbines, a kaplan adjustable blade, and pelton wheel.	C
	E 18	Hydraulic Turbines: Wheels & Rigs. Depicts impulse Turgo wheel, Hydraulic Turbine with characteristic curves and illustrations of power & caviation test rigs.	C
	E 19	Hydraulic Turbines: Practical Applications. Presents typical characteristic curves of Hydraulic Turbines, their applications, drawings of low & high head turbines followed by draft tubes.	C
	E 20	Hydraulic Turbines: Hydro Electric Power Plant. Shows hydro Electric Power Plant, operation ranges and governing system of different turbines, automatic control gear for pelton & francis turbines.	C

Mechanical Engineering: Refrigerators

	Chart No	Title	Price Code
	E 11	Refrigerators: Operation. shows block diagram explaining the principle of operation, three dimensional view of a domestic refrigerator, absorption and compression alongwith liquid air producing method.	C
	E 12	Refrigerators: Principles. Depicts the principles involved in direct and indirect ice refrigeration and vapour compression refrigeration along with a list of common refrigerants.	C
	E 41	Refrigerators: Condensers, Cooling Towers and Compressors. Features shell and tube, shell and coil types of condensers, natural, induced, & forced draft cooling towers with two cylinder reciprocating, screw & rotating vane compressors.	C
	E 42	Refrigerators: Flow Controls. Shows Automatic expansion valve, conventional liquid charged, thermostatic gas charged, cartridge type of pressure limting valves with their operating characteristics.	C
	E 43	Refrigerators: Flow Controls and Inter Coolers. Presents flow controls used in vapour compression refrigerators, Baudelot Cooler, pilot operated pressure & crank case regulators, cascade system, closed shell and coil inter coolers.	C
	E 44	Refrigerators: Evaporators. Shows Flooded, Dry Expansion, Natural and forced convection types of evaporator, coil designed liquid chilling evaporators, secondary refrigerants brine coil and brine spray air coolers.	C
	E 45	Refrigerators: Defrosting. Presents defrosting methods such as typical water defrosting system, simple and reverse cycle hot gas defrosting system, typical application of vapot along with thermo bank hot gas defrosting.	C
	E 46	Refrigerators: Cycling Controls and System Balance. Shows on/off cycling controls, thermostatic motor controls, evaporator, compressor and condenser along with a flow diagram of condenser capacity control.	C
	E 47	Refrigerators: Cycles. Super heated, saturated refrigerator cycles of sub cooling effect, heat exchange and liquid suction pressure drop and pressure loss cycles are depicted.	C

Mechanical Engineering: Engines Charts...

	Chart No	Title	Price Code
	E 50	Automobiles: Stroke Engines. This faboulous display projects a 3 dimensional view of a 2 stroke & 4 stroke Engines with their respective working principles.	C

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Electronics/ Electrical Engineering: Industrial Electronics

	Chart No	Title	Price Code
	E 24	Industrial Electronics: Stabilisers. Presents wave shaping integrating circuits, three phase half wave rectifier, bleeder resistance, shunt stabilisers, stabilised power supply, voltage regulator and amplifier.	C
	E 25	Industrial Electronics: Saturable Reactor & Triac. Shows a saturable reactor, magnetic amplifiers, First Half, Second Half Cycles, Bias winding, Silicon Control rectifiers and Bidirectional Triac.	B
	E 26	Industrial Electronics: Diac & SCR. Depicts diac, silicon control switch, shockley diode, SCR with resistive load, phase shift bridge circuit, SCR contact by UJT and a Triac Firing circuit.	C

Electronics/ Electrical Engineering: Optics

	Chart No	Title	Price Code
	PS 6	Electro Magnetic Radiation Spectra. The spectrum is presented in its entirety, from the lowest frequency radio waves to cosmic radiation, a separate expanded spectrum of visible light with radiation units.	C
	P 18	Cathode Ray Oscilloscope. Explains the working of a cathode ray oscilloscope, lissajous patterns and a block diagrm of general purpose Oscilloscope.	C
	P 28	Lasers. Depicts the principle, ruby laser theory, and Helium Neon laser theory with equations and working pattern.	C

Electronics/ Electrical Engineering: Electro-Magnetism

	Chart No	Title	Price Code
	P 30	Transformers. Depicts step up, step down, Auto, Audio, Variable, shell type, and Iron core transformers showing power generation and distribution.	C
	P 31	Dynamos. A very pleasant colour coordinated diagram of A.C and D.C. dynamos, commutators and electromotive force generation.	C

Electronics/ Electrical Engineering: Communication Systerms

	Chart No	Title	Price Code
	E 21	Communication Systems: Single Side Band Modulation. Presents wave forms of a modulating signal, amplitude modulated wave, single side band by phase shift and vestigial side band transmission.	B
	E 22	Communication Systems: Amplitude Modulation. Shows frequency spectrum, current requirements of an amplitude modulated wave, grid modulated, plate modulated triode, tetrode and class C Amplifiers with collector modulation.	C
	E 23	Communication Systems: Frequency Modulation. Depicts basic modulation wave forms, Frequency modulated vector, spectrum of stereo F.M. Multiplex modulating signal, basic reac tance and Armstrong Frequency modulation system.	B
	P 7	Transistor Characteristics. Shows the characteristics of PNP transistors typical static curve of common emitter amplifier showing load line and constant power distribution.	C

Electronics/ Electrical Engineering: Amplifiers

	Chart No	Title	Price Code
	P 55	Amplifiers: Single Stage. Shows common base, common emitter and common collector Amplifiers and Classification of amplifiers based on biasing condition of class A,B and C amplifiers with cross over distribution & pushpull amplifier.	B
	P 56	Amplifiers: Multi Stage. Presents resistance Capacitance, Impedance coupling, Transformer coupling and direct coupling transformers with darlington pair transistors.	B
	P 57	Amplifier: Feed Back. Shows series, Voltage shunt current series and current shunt feed back types of feed back amplifiers with their characteristics.	C

Electronics/ Electrical Engineering: Semi-Conductors & Detectors

	Chart No	Title	Price Code
	P 5	Semi Conductor Fundamentals: Charactersitic. Explains the hole flow and electron flow the Germanium atom, unbiased, forward biased and reverse biased PN diodes PNP and NPN transistors.	C
	P 6	Semi Conductor Fundamentals:Properties. The basic function of a silicon controlled rectifier, a unijunction transistor and field effect transistor the sturcture of semi conductor devices with static curves.	C
	P 10	Nuclear Radiation Detectors: Gieger-Muller. showing Ionization chamber circuit, G.M. Tube structure, circuit plateau recovery time, proportional counter, and basic physics of G.M. Tube.	B
	P 11	Nuclear Radiation Detectors:Scintillation. Depicts scintillation counter, photo multiplier, single channel gamma spectrometer with spectra.	C

Electronics/ Electrical Engineering: Computers & Microprocessors

	Chart No	Title	Price Code
	P 19	Instruction Set:8085 A central processing unit of 8085 instruction set is grouped under Data transfer, Arithmetic Logic, and stack I/O machine control Groups for specific operation of a computer chip.	C
	P 47	Functional Block Diagram:8085. Presents the functional block diagram of 8085 instruction set with interrupt contact, serial contact, register, flags, flip flops, ALU, and Data address buffer.	C
	E 27	Interfacing Peripherals: 8279, 8259A, 8253 pins. Depicts 8279, 8259 A and 8253 pin configurations, Pin names, Logic symbols with their block diagrams.	C
	E 28	Interfacing Peripherals:8255A & 8257 Pins. Shows 8255 A, & 8257 Logic pin configurations, Pin names, block diagrams & scientific diagram of a DMA Controller.	C
	E 29	Interfacing Peripherals: 8212 and 8155 pins. Presents 8212 pin configuration with a logic diagram, pin names, logic controls and 8155 pin configuration with its block diagram & 1/0 addresses.	B

Electronics/ Electrical Engineering: General

	Chart No	Title	Price Code
	P 39	Rectifiers. Features the construction and working principles of Half wave, full wave and full wave bridge rectifiers with inputs and outputs.	B
	P 40	Filters. Presents the input and output wave forms of ideal filter, series induction filter, shunt capacitor L.C. and C.L.C. filters.	B
	P 41	Multivibrators. Shows the general configurations of Astable, nonstable, Bistable and schmitt multivibrators with input & output wave forms.	B
	P 42	Logic Gates. Depicts And, not, nand, nor, exclusive or exclusive nor gates with truth Tables, Demorgans first and second theorems with boolean laws.	C
	P 43	Oscillators. Features Heartly, colpitts, clapp, Fet colpitts crystal oscillators, R.C phase shift and Wein bridge types of oscillators.	B
	PS 24	Nuclear Fission & Fusion. Presents the principle of fusion, bombardment of neutron on Uranium leading into chain reaction, fusion process of Deuterium & Tritium.	C

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Chemical Engineering : Metallurgy

	Chart No	Title	Price Code
	C 16	Blast Furnace. Features three dimensional view of Blast furnace, cup & cone arrangement, chemical reactions at different temperatures and Bessemer converter.	C
	C 33	Extraction of Copper. Shows concentration by froth flotation, roasting in reverberatory furnace, smelting in Blast furnace reduction in Bessemer converter and purification by electrolysis.	C
	C 34	Metallurgy of Nickel. Depicts concentration by flotation, roasting in reverberatory furnace, smelting, bessemerisation and purification of Nickel in chronological order.	C
	C 42	Extraction of Iron & Steel. Shows the extraction of Iron from open Hearth, & Herault Furnace, steel by L.D. process and wrought iron by reverberatory process.	C
	C 43	Extraction of Magnesium. Extraction of Magnesium is depicted by electrolysis of Magnesium Chloride and Electrolysis of Magnesia.	B

Chemical Engineering : Manufacturing & Synthesis

	Chart No	Title	Price Code
	E 31	Manufacture of Penicillin. Shows batch fermentation, extraction and purification of mould by which penicillin is obtained.	C
	E 32	Manufacture of Polyester. Presents the chemical production of polyester Yarn using raw materials such as P-Xylene and Terepthalic Acid.	C
	E 33	Manufacture of Nylon. Using Adipic Acid, Hexamethylene Diamine and Acetic Acid stage by stage production of Nylon is depicted.	C
	E 34	Manufacture of DDT. This Chart visually presents various chemical reactions of Ethanol passing through a series of reactors producing crystal clear DDT.	C
	E 35	Manufacture of Citric Acid. Visually depicts the process of obtaining Citric Acid from Dextrose Glucose syrup through a series of reactors.	C
	E 36	Manufacture of Portland Cement. Depicts both wet & Dry process in which raw materials like limestone, clay, silicon, and gypsum are crushed in kilns and crankers producing fine cement.	C
	E 37	Manufacture of Soap. Two-in-one depiction of saponification (fat splitting process) by which both soap and glycerine are produced.	B
	C 50	Manufacture of Sodium Hydroxide: (Solvay process). Shows the preparation of Sodium Hydroxide in kellner Solvary cell, castner kellner cell of two or three compartments and chemical reactions with equations.	C
	C 61	Extraction of Phosphorus	C
	E 60	Manufacture of Paper: Kraft Pulping Process. Starting with logs being cut into chips and then passing through various stages until fine paper is produced with recovery of black liquor.	C
	E 61	Manufacture of Paper: Acid - Sulphate Process. An improved acid sulphate pulping process in which wooden chips pass through various stages forming paper with recovery of red liquor.	C
	E 63	Extraction of Soyabean Oil: Vertical Circular Procedure. Covers the cracking of beans with Hexane as a solvent and processing through a series of extractions producing Soyabean Oil.	C
	E 64	Extraction of Soyabean Oil: Mechanical Expeller Procedure. E 64 Extraction of Soyabean Oil: Mechanical Expeller Procedure. Presents a large cut-away section of twin motor super duo expeller, extracting the oil and its purification.	C
	E 85	Manufacture of Urea. Depicts production of urea from Ammonium Carbamate through series of reactors. All the raw materials and chemicals reactions involved in this process are well depicted.	C
	E 86	Manufactue of Heavy Water. Presents heavy water prepration through Deuterium sepration, electrolytic cascade, dual temprature exchange, hydrogen distillation, featuring the required chemical equipment.	C
	E 87	Hydrogenation of Oils. Shows hydrogenation of vegetable oils through hydrogenator, Vaccum steam deodorizer, Decolorizer & filter yielding oil as well as the by products.	C
	Bi 57	Municipal Water Treatment. Features the purification of raw water using chemicals and equipments with filters producing pure water.	C

Chemical Engineering : Refining & Distillation

	Chart No	Title	Price Code
	C 51	Fractional & Steam Distillation. Presents Fractional distillation using tube, funnel, flask, conical, Bell & plate types and steam distillation with melting and boiling points.	C
	C 57	Refining of Petroleum. Deals with natural occurrence of petroleum, Drilling and refining of petroleum in diagrammatic and three dimensional approach showing various fractions.	C
	E 58	Refining of Alumina. Depicts a block diagram and three dimensional view of stage by stage process of refining alumina using soda ash, crushed lime & Bauxite.	C

Chemical Engineering : General

	Chart No	Title	Price Code
	PS 4	Periodic Classification of Elements: Long form(125 X 200 Cms). This double sized chart gives the details of 112 elements such as atomic number, weight, name, symbol, boiling and melting points, density, atomic and ionic radii and electronic configuration.	2C
	C 1	Shapes of Atomic Orbitals. Depicts the spherical S orbital, dumb bell P orbital and orientation of 5d orbitals in three dimension. Further enveloping and orientation along different axes & planes is illustrated.	C
	C 38	Structural Isomerism. Depicts ball & Stick models of position, chain, functional, metamerism and tautomerism with various examples.	C
	C 39	Hybridisation. Presents SP3, SP2 and SP Hybridisations in methane, ethylene and acetylene respectively with sigma, pi bonds and overlapping of orbitals.	C

Chemical Engineering : Equipment/ Apparatus

	Chart No	Title	Price Code
	E 30	Hot Lime Soda Water Softener. Depicts the structural features of hot lime soda water softener employed in water treatment.	C
	E 38	Fire Extinguisher. Portrays the principles and operation of a Soda Acid fire extinguisher and a Dry powder fire extinguisher with details of common strike knob.	C

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Civil Engineering: Building Construction...

	Chart No	Title	Price Code
	E 80	Foundations: Wells. Depicts Raft foundations, circular, Twin Circular, Dumb Shape, Rectangular, Double-D, Twin Octagonal, Twin Hexagonal wells alongwith pedestal, Raymond and Vibropiles.	C
	E 81	Foundations: Wall Footings. Shows simple & stepped wall footings, Trapezoidal, rectangular, strap, & combined footings alongwith grillage foundations.	C
	E 82	Steel Trusses. Presents welded Tubular steel Truss, Tie Tubes, Side Sheeting, Lattice Girder and a Series of Trusses fitted to girders with North light Truss.	C
	E 83	Reinforced Cement Concrete. Shows graphically the circular, square, spiral, twisted bars with their arrangement of ties and structural details of RCC lintels.	C
	E 84	Sewer Appurtenances. Features the drainage plan of building, its sectional view, catch basin, septic tank, P, Q, S, Floor, Gully and Grease traps with Man Holes.	C
	Bi 57	Municipal Water Treatment. Features the purification of raw water using chemicals and equipments with filters producing pure water.	C

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