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PLANKS CONSTANT APPARATUS
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Planks Constant Apparatus

(HL-8022 )
Objective : To Plot Forward & Reverse Chat of a Vacuum Photo cell & to Calculate its stopping potential.
Features : Dual Range Power upply 0-1VDC/0-50 VDC with one dual range voltmeter & one sensitive centre zero Galvanometer of 25A movement.Photo Cell mounted in wooden box having window for injectinf light & also for sliding the various filters. One wooden Plank with 1/2 meter scale, light source with 100W lamp 7 set of filters.

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OHMS LAW APPARATUS WITH DIGITAL PANEL METERS.
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Ohms Law Apparatus With Digital Panel Meters.

(HL-8023 )
Objective : To verify Ohm's Law i.e V=1R
Features : Instruments comprises of Two digital Panel meters to measure volatge & current,One wire wound Potentiometer.Circuir diagram printed & connections brought out at terminals for connecting 6 volts battery & one wire wound Resistance.

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LECHLANCHEE CELL
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Lechlanchee Cell

(HL-8024 )
Lechlanchee Cell output Voltage 1.5V

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e m by SHORT SOLENOID METHOD (MAGNATRON METHOD)
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E M By Short Solenoid Method (magnatron Method)

(HL-8025 )
Objective : To study charge of an electron using short solenoid method.
Features : Kit Comprises of Low Volatge DC Power Supply unit with Filament Volatge & Solenoid Current controls. Two meters are provided for Anode Volage controls. One Solenoid Unit Comprises of one Solenoid mounted on wooden stand & Valve 41 is Kept in the Solenoid pipe.

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DANIEL CELL
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Daniel Cell

(HL-8026 )
Daniel Cell output Volatge 1.018 VDC.

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BASIC LOGIC GATE 3 Using TTL ICs (7 & in ONE)
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Basic Logic Gate 3 Using Ttl Ics (7 & In One)

(HL-8027 )
Objective : To verify the truth table for TTL AND, OR, NOT, NAND, NOR, EX-OR & EX-NOR gates.
Features : Instruments comprises of 5V/150ma DC regulated power supply for logic '1` & logic'0'.

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FET CHARACTERISTIC APPARATUS WITH REGULATED POWER SUPPLIES
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Fet Characteristic Apparatus With Regulated Power Supplies

(HL-8028 )
Objective : To Plot static & Trasfer Characteristic.
Features : Instruments comprises of Two DC regulated power supplies 0-15 VDC/150ma & 0-5 VDC/150ma three round meters for voltage & current measurement,FET BFW 10 mounted behind the panel,connections of supplies,Meters & FET brought out at 4mm sockets.

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PN JUNCTION ZENER DIODE CHARACTRISTIC APPARATUS
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Pn Junction Zener Diode Charactristic Apparatus

(HL-8029)
Objective : To study Forward & Reverse Characteristic of PN Junction Diode & Zener Diode.
Features : Instruments comprises of Two Dc power Supplies,Two round meters to measure for volatge & current, 1 PN junction diode & 1 Zener Diode mounted behind the panel & connections brought out t terminals/sockets.

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e m by Thomson method (BAR MAGNET METHOD)
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E M By Thomson Method (bar Magnet Method)

(HL-8030 )
Objective : To study charge of an elctron using Thomson Method.
 
Features : High Voltage Power Supply with one Meter Provided to measure the Deflection Voltage.Complete with intensity,Focus & Deflection controls.
 
It is provided with accessories such as compass box,set of ELICO magnets,Teak wood stand with CRT mounted,Teak wood U stand with scale on both theorems for placing magnets.

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TRANSISTOR CHARACTERISTIC APPARATUS
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Transistor Characteristic Apparatus

(HL-8031 )
Objective : Input & Output Characteristic of Comman Base PNP & NPN Transistor.Input & Output Characteristic of Comman Emitter PNP & NPN Transistor.
Features : Instruments comprises of two Dc regualted Power Supplies 0-10 Volt/500 Micro amp/50 ma, 0-1VDC/30ma, four round meter for voltage & current measurement,one PNP & one NPN Transistor mounted behind the panel, connection of supplies & Transistores brought out on terminals or 4mm sockets.

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FUNCTION GENERATOR
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Function Generator

(HL-8032 )
Generates frequency from 1Hz to 250KHz in 6 steps wave from is Sine, Square and Triangular. Output is variable from 0 to 10 Volts. accuracy 3% or 2Hz. Output Impedance 50ohms. Solid State. Workable on 220V 50Hz Complete I.C. version with coarse and fine controls for output and frequency selection. Dimension 11"x5"x5".

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SODIUM VAPOUR LAMP TRANSFORMER
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Sodium Vapour Lamp Transformer

(HL-8033 )
Sodium Vapour lamp Transformer are housed in iron cabinet and nicely painted.
A) 35 Watt
B) 55 Watt

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Schering Bridge
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Schering Bridge

(HL-8034 )
For measurement low capacitances. The bridge comprises 3 decade dials of standard capacitors of .001, .01 & 1 mfd. Two Resistive Ratio dials. A variable condenser 0-1000 pF and three resistive decade dials of 1, 10 & 100 ohms Manganin Coils Accuracy 0 .1 %

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PN JUNCTION ZENER DIODE CHARACTRISTIC APPARATUS WITH DIGITAL PANEL METER
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Pn Junction Zener Diode Charactristic Apparatus With Digital Panel Meter

(HL-8035)
Objective : To study Forward & Reverse Characteristic of PN Junction Diode & Zener Diode.
Features : Instruments comprises of Two DC power Supplies,Two digital panel meters to measure for volatge & current, 1 PN junction diode & 1 Zener Diode mounted behind the panel & connections brought out t terminals/sockets.

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IC REGULATED POWER SUPPLY
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Ic Regulated Power Supply

(HL-8036)
  1. 0-15VDC/1Amp. with one moving coil 72mm Acrylic Square Voltmeter
  2. 0-15VDC/2Amp. with one moving coil 72mm Acrylic Square Voltmeter

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