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Expansion Model of Human Teeth

This model shows the morphological differences of the incisor, canine and molar teeth. Dissection of the canine and molar teeth demonstrate the structure of enamel, dental pulp cavity. Enlarged 12 times, 3 pcs set.

Prism, Glass

Description

Right angle, polished faces, edges slightly beveled, 90°x45°x45°. 35 x 25 mm 50 x 38 mm 70 x 50 mm Right angle, polished faces, edges slightly beveled, 90° x 60° x 30° 28 x 38 mm

Dicot & Monocot Stem

Achyranthus Stem TS Begonia Stem TS Bougainvillia Stem TS Calotropis Stem TS Casurina Stem TS Cucurbita Young Stem TS Cucurbita Old Stem TS Cucurbita Stem LS Cusuta with Host TS Dicot Stem LS and TS on Same Slide Helianthus Young Stem TS Helianthus Old Stem TS Helianthus Stem TS Mirabilis Stem Mublenbeckja Cladode TS Asparagus TS Dracaena Stem TS Grass Stem TS Hydrilla Stem TS Maize Mature Stem TS Maize Stem LS Maize Stem TS and LS, on same slide Triticum (Wheat) Stem TS

Soil Thermometer

Description

Range 0°to 110°C. comprises an aluminum tube, perforated at base, approximately 300 x 12 mm with removable red alcohol filled thermometer.
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Brunton Compass

Description

We offer Brunton Compass (Geological Compass) which is available in a leather or wooden case. This compass differs from modern compasses, as it utilizes magnetic induction damping rather than fluid to dampen needle oscillation. It is widely used by geologists and surveyors to make accurate degree and angle.

Journal Bearing Apparatus

DESCRIPTION:

The apparatus consists of a plain steel shaft encased in a bearing and directly driven by a small electric motor. The bearing is freely supported on the shaft and sealed at motor end. The motor speed is precisely controlled by control unit and sealed at motor end. The motor speed is precisely controlled by control unit and can be run in both directions. The bearing contains twelve equi-spaced pressures tapping around circumference and four along the axis. All are connected by light flexible plastic tube to the manometer so that the pressure head of all sixteen point can be observed at a time. The bearing can be loaded by attaching weight to the arm supported beneath it.

SPECIFICATIONS:

1. Journal : 50 mm. dia. (nominal) 2. Bearing : 55 mm. dia. 3. Weights : 4 adjustable weights 4. Motor : D.C. shunt Motor, 3,000 RPM. 5. Control panel : For speed control of Motor 6. Manometer panel : 16 tube Manometer 7. Oil recommended : SAE 10

EXPERIMENTS:

1. Observation of the pressure profile at various conditions of load and speed. 2. Plotting the Cartesian and polar pressure curves. 3. Plotting the theoretical Summerfield curves.

SERVICE REQUIRED:

1. Electric Connections : A.C Single Phase, 230v. supply with ear thing. 2. Stand Alone Space : 1.5m X 1.5m X 4m Height.

DC Servo Motor Controller

This trainer designed for versatile Applications / Experiments mentioned below. It consists of(i) a PWM Chopper Drive using MOSFET (ii) DC Servo Motor (iii) Speed Sensor (v) PI Loop for speed. This trainer system is a compact & advanced version for class room experiment setup for the students to operate and study a practical speed measurement using optical sensor and speed control system.

FEATURES:

• One 12V PMDC Motor mounted on a open frame. • Speed Range: 0 to 1500 RPM. • Speed Sensor fixed on the frame. - Photo interrupter with optical Encoders. • One F/V converter is provided to convert the pulses to voltage output. • Speed controller provided to select - Proportional circuit. - Proportional plus Integral circuit. • One 3½ digit display to display the speed of the DC Servo motor / set value. • A switch provided to select the reference or the actual speed. • All important signals are terminated at sockets. So that, the student can monitor / measure the signals using CRO, DVM, Frequency counter etc.

Digital Coating Thickness Meter

Description

Digital Coating Thickness Meter We offer high quality of Digital Coating Thickness Gauge. Statistics (Number of readings, average, Std. deviation, max. ,; min.) are updated with every reading and displayed simultaneously. It helps to decide how many readings are to be taken. Continue taking readings till you start getting reasonably consistent statistics.
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Electronics Kit

Each module is housed in a plastic box 90 x 90 x 30 mm and is provided with a circuit diagram on the panel. It has necessary input and output sockets. The socket stacking system allows addition of as many modules as desired, designed to work on 6V D. C.

Imhoff Cone BG

Capacity ml
1000
IMHOFF CONE STAND (Metallic) one hole

Fungi

Alternaria Host Leaf TSColletotrichum Acervulus
Cystopus Asexual VSCystopus sexual VS
Mucor Veg. WMMucor Sporangia WM
Mucor Sexual WMPerenospora Asexual VS
Phyllactenia WM, VSRhizopus Veg. WM
Rhizopus Sporangia WMRhizopus Sexual WM
Synchytrium Host Leaf TSSynchytrium Prosorus Aspergillus with Conidia WM
Erysiphae WM, VSMorchella Fruiting Body TS
Penicillium WMYeast WM
Yeast Budding WMAgaricus Stipe TS
Agaricus Pileus VSAgaricus Stipe and Pileus VS
Puccinia Uredo on Wheat Leaf VSPuccinia Teleuoto on Wheat Stem TS
Puccinia Aecidia On Barbery Leaf VSUstilago Spores WM
Ustilago with Host TS 
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Tablet Making Machine (Hand Operated)

Details

Single punch automatic compression and injection device with each revolution of the wheel drive automatic feed and remove of tablets. Built on heavy cast body with centric pressure system SS hoper provided and connected by a rubber tube easy setting for thickness and hardness of tablets with nuts and locknuts.

Features

Easily rotating wheel for making tablets. Compressing lever for adjustable harness of tablets. Adjustable lower punch for adjusting the thickness. Stainless steel day and punch size 6, 9, 12 mm. Electrical model can be provided in same with ½h.p motor.

Refrigeration Trainer Electrolux Type

This type of refrigeration is usually used for domestic purposes only as it is complex in the construction and working. This type of refrigerator was developed in 1925 by Munters and Battzervan when they were studying at Royal Institute of Technology At Stockholm for their undergraduate course. This type of refrigerator was known as three fluid refrigeration system. The elimination of aqua pump from the absorption system with the complete absence of moving parts and work input. The main purpose of removing the pump was to make the machine noiseless. It uses refrigerant as a solvent s and an inlet gas for inlet of the system. The inert gas is continued to the lower side of system only by its system. It is possible to maintain the uniform pressure throughout the system and after sometime permitting the refrigerant to evaporator at low temperature corresponding to its partial pressure. In the high pressure side system (generator and condenser), there exists only the refrigerant which is subjected to total pressure of the system so that it is condensed by using normal cooling water as air as it is done in other system. The strong aqua ammonia solution is heated in generator by the application of external heat source. The water vapor carried with ammonia vapor is removed in separate form as shown in figure. Then the dry ammonia vapor is passed into the condenser and it is condensed by using external cooling source. The liquid ammonia flows under gravity in the evaporator and it evaporates. The mixture of hydrogen and ammonia vapor is passed into the absorber and the weak solution from aqua ammonia from the separator is allowed to follow into the absorber, through tray this weak aqua ammonia solution comes into contact with hydrogen separated. This strong solution is further passed to the generator and it completes the cycle.

Rock Cycle Model

Description

Shows coastal and mountain terrain in natural colour relief & cross section diagram of the substance of a typical volcano. Complete with lesson plan, size 60 x 45 cm
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Surface Tension Balance, Searle’s

A horizontal frame is mounted on a rod fitted to a base & carries a steel wire stretched across it, the tension of which can be adjusted by a tightening screw. A light metal pointer with a counterpoise is attached to the centre of the wire clamp. A pan is hung from a notch in the pointer and has a hook at its underside from which can be suspended a light weight rectangular frame or a metal clip to hold a micro slide edge. The tip of the pointer moves over a graduated scale. With rectangular wire frame, slide clip, six micro slides & 3 meters of spare wire.

3Ø – 3Ø Matrix Converter

FEATURES:

• 9 No. Bi-directional Switch with IGBT and Fast Diode Bridge,Rating@1200V 50A Forms 3 Phase to 3 phase Matrix Converter Power Circuit • Output of Matrix Converter Terminated by Banana Connector in the Front Panel • 9 No. High Speed Opto- IC Provided for Gate PWM Isolation. • 9 No. Single Channel IGBT Driver IC with Current Limiting Facility Provided for IGBT Gate Driving. • 9 No. 15V DC Power Supply Provided Internally for Control Circuit. • 3 No. Inductor and AC Capacitor Provided for Three Phase Input Filter. • One No Three Phase Synchronizing Transformer (230/9V) Provided for three Phase Supply Synchronization • 6 nos Hall-effect Current Sensor with Signal Conditioning Circuit Provided for Output and Input Current Measurement and Protection. • AC voltmeter is provided for measure the input AC voltage. • +/- 15V DC Internally Provided for Sensor Signal Conditioner Circuits. • MCB Provided for Input power ON/OFF and OL Protection ON/OFF Switch. • Test points are provided on the front panel to measure the voltage, current and PWM signals • 34 pin FRC Connector Provided for IGBT Gate PWM Inputs. • Input : Three Phase 440V AC, 50 Hz. • Output : Three Phase Variable Voltage, variable frequency • Rating : Suitable for 1 HP 3Ø AC Induction Motor

Westminister Electromagnetic Kit

Description

A very effective and motivating learning aid in elementary electromagnetism. Consists of 8 anisotropic alloy magnets, 8 ceramic ferrite magnets, 4 steel magnet yokes, 6 plotting compasses, 4 hardboard formers to take compasses, 1 bottle iron filings 250 gm, 4 dispensers for iron filings , 4 double C-cores, 4 clips for C cores, 4 Aluminium rings, 4 Aluminium split rings, 4 armatures with axle tubes, 4 Aluminium axle rods, 8 split pins, 16 rivets, 4 formers for coils, 4 reels cello tape, 4 reels copper wire, 4 sheets white pasteboard, 4 plain postcards, 4 reels white cotton thread, 1 length latex rubber tubing, 4 each resistors 100 ohms and 10 ohms, 4 support bases, 10 MES bulbs, 8 MES bulb holders,1 wood clamp and 1 wooden block. With instructions.
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SILICA CRUCIBLE WITHOUT LID

PRODUCT DESCRIPTION
  • Crucible is glazed inside and outside.
  • Highly resistant to alkalis and hot temperatures
  • 50ml capacity
  • Outside diameter 55mm, 42mm height
  • No lid includedSilica crucible is glazed inside and outside. Highly resistant to alkalis and hot temperature SIZES ARE: 15ML 25ML 50ML 80ML 100ML 150ML

SILICA CRUCIBLE TALL FORM Without Lid, Translucent

PRODUCT DESCRIPTION -Without lid, translucent, glazed - Ordinary type lids to be purchased separately Size/ dimension:
  • 20ml,  Dia. 35mm x Ht. 38mm
  • 30ml, Dia. 43mm x Ht. 38mm
  • 50ml, Dia. 51mm x Ht. 51mm

SILICA MUFFLE TRAYS (For VM Crucible)

PRODUCT DESCRIPTION:   Available in 2types:  Two Hole, 39mm Length Four Hole, 76mm Length
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