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Telephone Trainer & Lab Kit For Vocational Training And Didactic Labs

CET-0001

Equipment for Education, Engineering and Vocational Training - Telephone Trainer Kit - Telephone Trainer is complete working model of telephone. It gives hands on experience on basic telephony concepts, working and different experiments on telephone.The trainer comes complete with exhaustive experiment manual, accessories, test points, and LED's for indication. The complete circuit is printed on single sided PCB in section wise format, depicting the complete flow of system. Practical experience on this trainer carries great educative value for Science & Engineering Students. Experiments: Understanding of telephone. Study of telephone features. Study of speech circuit. Study of ringer. Study of tone dialing. Study of pulse dialing. Study of switching mechanism between subscriber :- Incoming call. Outgoing call. Features: Single sided PCB depicting different working sections. 35 test points and LED’s provided on board to study signals. Power from external telephone line, no power supply is required. Pulse dialing as well as tone dialing facility. Dialer and ringer section. Mute, Redial and ON / OFF hook switches. Telephone Handset: 1 Nos. Weight : 4 Kg. (Approx.) Technical Specifications : Line in section : One dot line connection port. Handset : One handset connection port. Keyboard : 4x3 matrix keyboard. Dialer : Tone and pulse. Facilities : Redial up to 32 digits, Mute, Redial, Flash, Pause switches. Indicators : Line in, Hook, tone and ringer, Call mute section. Control : Ringer volume control, Ringer speed control. Speech path : Fully Non-Blocking. Dial pulse ratio : 10 pps + / - 10%. Tone frequency : 430 Hz. Input power : From telephone line. Test Points: 01. 35 No. of TP’s test points are provided on board to observe intermediate signals. * Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections / observation of waveforms. * Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.. 

PA System Trainer & Lab Kit For Vocational Training And Didactic Labs

CET-0002

Equipment for Education, Engineering and Vocational Training - PA System Trainer - PA (Public Address) System Trainer - This Trainer has been designed with a view to provide practical and experimental Knowledge of general circuit of PA (Public Address) System Trainer on Single P.C.B Practical experience on this Trainer carries great educative value for Science & Engineering Students. Object: To study the circuit & operation of a PA system and observe various intermediate waveforms. Features: The P.A. System Trainer consists of : The complete circuit of a public address amplifier is printed on a single PCB. All part are soldered on PCB. Explanation, Observation, Alignment and adjustment of internal and external control possible due to single PCB. Easy identification of different parts is possible at a glance. Easy measurement of voltages and observation of waveforms at any point. Also typical voltages and waveforms are provided. A manual having practical detail is provided with the trainer. The whole circuit of public address amplifier is explained sectionwise in the manual. Technical Specifications : Signal to noise ratio : 60 dB. Frequency response :100 Hz to 15000 Hz. Amplifier with two mic.inputs. One mic. & One Aux. inputs. Power supply : 220VAC 50 Hz. Power Output : 80 Watt RMS Max. Tone control : Bass, Treble. Audio Monitoring Indicators. Output Tap for speaker matching : 4,8 &16 Ohms. Good Quality,reliable terminal/sockets are provided at appropriate places on panel for connections / observation of waveforms. Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book Reference Weight :16 Kg. (Approx.) Other Apparatus Required: Digital multimeter Order Code -16901 Cathode Ray Oscilloscope dual trace Accessories: Three Mic. with lead & connector One speaker 4 Ohm, 4 Watt provided for normal operation. 

Mobile Phone Trainer & Lab Kit For Vocational Training And Didactic Labs

CET-0003

Equipment for Education, Engineering and Vocational Training - GSM Mobile Phone Trainer Kit - MOBILE PHONE TRAINER kit has capability of full duplex mobile communication. Provides basic theory and working fundamentals of a 2G hand set based on the NOKIA 3310/3315. This trainer kit designed with a view to provide network, power supply, charging & user interface circuits for their practical and theoretical study based on NOKIA 3310/3315. Practical experience on this board carries great educative value for Science and Engineering Students. Features: Real time Mobile Operation Expanded and open trainer Full understanding of mobile phone working Frequency measurement and band verification Provides study of all sections in mobile phone TX/RX Frequency measurements 2G technology & GMSK signals GSM data rate Detail study of User Interface Control signals Detail study of SIM Operation Battery identification and charging study Switch Faults Technical Specifications : Cellular System : EGSM/GSM 900 Rx Frequency Band : EGSM 925, 960MHz: GSM 900, 935, 960MHz Tx Frequency Band : EGSM 880, 890MHz: GSM 900, 890, 915MHz Output Power : +5V, +33dBm/32mW, 2W Channel Spacing : 200 KHz Antenna : Loop type, 50W Display : 84 x 48 pixels On Board sections : Antenna, Keypad, SIM, Charging Circuit, Clock, User interface such as Buzzer, Vibrator, LEDs. No. of test points : 54 No. of switched fault : 20 Features that can be set : Screen savers, Ring tones, Logos, SMS etc. Accessories included : Battery, Mains cord, Manual, Hands Free Kit Power Requirement : 220V ± 10% 50 Hz Power consumption : 3.6 Watts (Approx) Fuse : 1.5 amps Experiments That Can Be Performed: To study and measure frequency band To study and measure the GMSK signals such as Tx.1/ QRx1/Q To study and observe the system CLK Observation of Audio signal To study and measure the power supply Study of charging phenomena with fault insertion Study and measure PWM signal of UI circuit such as Vibrator LED buzzer Measurement of LED with fault insertion Keypad study with fault insertion Observe and measure the SIM Card CLK with fault insertion. 

CD, DVD & VCD Player Trainer & Training Lab Kit for Vocational Training and Didactic Labs

CET-0004

Equipment for Education, Engineering and Vocational Training - CD, DVD & VCD Player Trainer & Training Lab Kit - Complete working model of CD/VCD Player Trainer. It gives hands on experience on basic concepts, working of CD/VCD Player.The trainer comes complete with exhaustive manual, accessories, test points, and LED's for indication. The complete circuit is printed on single sided PCB in section wise format, depicting the complete flow of system. Features: The complete circuit of a CD/VCD player is printed on a single P.C.B. The digital signal processing section is in assembled open out P.C.B. Explanation, Observation, Alignment and adjustment of Internal and external possible due to single P.C.B. Easy identification of different parts and Mechanism at a glance. Easy measurement of voltage and observation of waveforms at any point. A manual having practical detail is provided with the trainer. The whole circuit of the CD/VCD Player is explained sectionwise in detail in the manual. Technical Specifications : Power Supply : 230VAC, 50Hz Function Switches : Play/ Pause, Forward, Rewind, Stop, Program select/ Repeat, Skip Forward, Skip Reverse, Open/ Close, Tracks Select. Display : Program, Time and Track status display. Laser : Semiconductor Laser (780nm). Frequency Range : 5 - 20000Hz. T.V. System : PAL and NTSC Audio Output : 200W PMPO (100W x 2 Channels) Speakers : 2 Nos. Modulation : EFM Quantization : 16 bit Linear CD Format : Audio CD, Video CD, MP3 CD can be played. Output Sockets : Audio Out, Video Out, RF Out (Channel 2). Remote Controls : Play/ Pause, Forward, Rewind, Stop, Program select/ Repeat, Skip Forward, Skip Reverse, Open/Close,Tracks Select. Sampling Frequency : 44.1KHz Distortion : 5 to 10% for expanded P.C.B. Controls : Bass, Treble, and Volume. Test points : 15 Switch Faults : 17 Standard Accessories : Video CD -1 Nos. Speakers -2 Nos. A manual having practical details - 1 No. Audio / Video Connecter With Lead Remote Control. 

AM & FM Radio Trainer & Trainer Kit for Vocational Training and Didactic Labs

CET-0005

Equipment for Education, Engineering and Vocational Training - AM & FM Radio Trainer - AM/FM Radio Trainer Kit has components placed over their corresponding symbols in the schematic drawing on the surface of the printed circuit board thereby maximizing the learning process and explain theory of operation of the radios. The radios are constructed in sections with each section being completely tested before moving on to the next, reducing difficult troubleshooting associated with some other kits. Trainer includes a high quality printed circuit board with schematic printed on the surface. The manual is easy to understand and assumes no previous electronics knowledge. Trainer forms a “Superheterodyne” receiver of standard AM (amplitude modulation) and FM (frequency modulated) broadcast frequencies. Object: 01. To Study AM RADIO RECIVER 02. To Study FM RADIO RECIVER Specifications: (1) Am Radio Section: Tuning Range : 520 KHz – 1620 KHz IF Frequency : 455 KHZ Tracking : + - 3 db from 700 KHz to 1400 KHz 10 db Signal to Noise at 200 microvolt typical (2) Fm Radio Section: Tuning Range : 88 MHz – 108 MHz IF Frequency : 10.7 MHZ Tracking : + - 5 db from 90 MHz to 106 MHz DETECTOR : Uses Ratio detector and full time auto frequency control 10 db Signal to Noise at 12 microvolt typical (3) NINE SECTIONS: Audio Amplifier Circuit AM Detector Circuit AM IF Circuit AM Amplifier Circuit AM Mixer and Oscillator Circuit FM Detector Circuit First FM IF AMPLIFIER Circuit Second FM IF AMPLIFIER Circuit FM Radio Frequency Stages (4) Other: Test Points : 15 Numbered as TP1 to TP15 Trainer is complete with : Ear Phone & Operational/ Instruction Manual. Loud speaker on panel Operative Voltage : 9Volt DC Battry (Provided) 9V DC Power Adaptor (Provided). 

Multimedia Computer Trainer & Lab Training Kit for Vocational Training and Didactic Labs

CET-0006

Equipment for Education, Engineering and Vocational Training - Multimedia Computer Trainer, Multimedia Computer Trainer Kit - MULTIMEDIA COMPUTER TRAINER This trainer provides training of hardware and software theory of a based on Intel Celeron CPU with experiments on 98 & XP. Practical experience on this board carries great educative value for Science and Engineering Students. FEATURES The Different circuit boards of PC/AT Computer are exposed on a PCB. Troubleshooting and fault finding procedure explained in details. Artificial fault creation facilities are provided by the switches. About more than 60 faults can be demonstrated at a glance. Easy measurement of voltage and observation of waveforms. The typical voltages and waveforms are provided. An Exhaustive and Skilled oriented comprehensive instructional manual with complete theory explanation. SPECIFICATIONS (A) SYSTEM: C.P.U with fan : Intel Celeron. Mother board : Mercury (v2.0, P1865D7). Memory (RAM) : 256 MB DDR RAM. Display adaptor card : Built-in-motherboard. Hard disk : 80 GB-Seagate. Floppy disk drive : 1.44 MB. Monitor : 15” Color SVGA-LG / SAMSUNG Key board : Multimedia key board (I-ball / EQ.) Mouse : Optical mouse with pad (I-ball / EQ.) SMPS : 450 Watts (ATX). DVD Rom/Writer : LG / SAMSUNG Sound card : Built-in-motherboard. Speakers and Mike : Stereo speakers. TV tuner card : PCI with Rfin, Video in, s-video in Video Camara : Web cam/Easy tune Modem : 56.6 kbps. Ethernet : Built-in-motherboard. (B) TRAINING PACKAGE:- Trainer PCB board with fault creating facilities. Training package with experiments Software CD and manual (C) OPTIONAL:- TV tuner card. LIST OFACCESSORIES Mother board driver CD with cover 1 No. Bootable CD with cover 1 No. Bootable Floppy 2 No. Mains cord detachable ( for monitor and trainer ) 2 No. Trainer Key 1 No. Operating Manual 1 No. Web Camera (Micro soft life cam VX-1000 / EQ.) 1 No. Speaker Set (Stereo speakers) 1 No. Optical Mouse with Pad (I Ball / EQ.) 1 No. Multimedia Key Board (I Ball / EQ.) 1 No. PC Monitor 15” Color SVGA-LG / SAMSUNG 1 No. Microphone (Philips / EQ.) 1 No. Head phone (I Ball / EQ.) 1 No. BNC to Test prod cable 1 No.. 

Colour TV Trainer & TV Trainer Lab Kit for Vocational Training and Didactic Labs

CET-0007

Equipment for Education, Engineering and Vocational Training - Colour TV Trainer & TV Trainer Lab Kit - Colour TV Trainer is an ideal training equipment to teach the operation of colour TV receivers. The complete circuit of colourTVReceiver is printed on single PCB. Sectionwise coloured printing on PCB helps in easy understanding of function of different blocks. More than 50 test points allow the analysis and monitoring of the signals in different sections. It safe to operate because all the test points are protected against accidental shortcircuits. By using the fault simulation method, it is possible to introduce the most common breakdown and their rectification. Technical manual includes circuit diagram with component list of each section. Test point details with typical voltages and wave forms are provided in the manul. The Trainer has been specially designed with Sliding Main Board with locking facility. The detachable CRT Unit is another feature. It can also be used as a normal desktop Colour TV Receiver. TV Receiver in open form with all components&controls placed on single PCB Each circuit block shown in different colour for easy identification Solderless fault creation&Rectification Legend printing on PCB More than 50 test points Compact Design-Sliding Main board with locking facility Can be used as Desktop Colour TV Fully documented Operating Manual with glossary of terms Manual and remote control operation Detachable CRT Unit. Experiments that can be performed Study of RF-Section through test points, fault simulation&rectification Study of VIF- section through test point, fault simulation&rectification Study of Video/Chroma section through test points, fault simulation&rectification Study of System Control Section through test points, faults simulation&rectification Study circuit of Horizontal&Vertical Oscillator&Output sections Study oc circuit of Horizontal&Vertical output sections through test points fault simulation&rectification Study of R-GBvideo output Section study of Audio Sound section and many more. Technical Specifications: Standard : CCIR-B-PAL-G, 625 Lines Channels : 230 2-4VHP: I (VL), 5-12VHPIII (VH) 12 -100:BANDIV&V, else : SBAND & HYPERBAND Picture Tube Size : 36cms.Diagonal RF Input Impedance : 75W Circuit Blocks : System Control Circuit, Video IF, Sound, Tuner Section, Horizontal Oscillator, Horizontal Output, Vertical Oscillator, Vertical output, Video&Chroma Section, Power Supply, AVsections ON Screen Display to set : Volume Brightness,Contrast, Colour Channel&Band Selection Tuning Panel Control : ON-OFF Switch, Stand by MenuVol + / - Prog + / - Remote Control Function : Volume, Brightness, Stand by, Colour, Contrast, Channel Selection, Audio Mute, AV Mode, Zoom, Swap, Scan Child Lock PCB Size : 475 x375mm No. Pf Faults : 21 No. of test Points : 55 I.F. Frequency : Video - 38.9MHz,Audio - 33.4MHz Speaker Size : 50 x125mm Accelerating Potential : 24KVmax Operating Voltage for EHT : 110V Mains Supply : 230V± 15%, 60Hz on request Power Consumption : 75VA(Approx). 

Oscilloscope Trainer & Oscilloscope Lab Kit For Training For Vocational Training And Didactic Labs

CET-0008

Equipment for Education, Engineering and Vocational Training - Oscilloscope Trainer & Oscilloscope Lab Kit for Training - Oscilloscope Demonstrator Trainer is specifically designed for the study of working of an oscilloscope in an open form. The Controls are placed actually at the place as they are in the layout schematic. Thus a trainee can easily locate any section, & components in the section and study it thoroughly. The function controls and the adjustment controls are fully accessible to the trainee to verify their effect on the working of the scope. Creation of Faults and rectification of faults are important exercise covered in the experiments. An illustrated Block and Circuit Schematic and the adjustment plan right in front of the trainee's eyes helps him tocorrelate each operation during the demonstration. Oscilloscope in open form with all components and controls placed on single PCB Amplifier, Time base, Channel section signal available on test points Separate sections for PS, EHT, VA, HA, TB & Trigger for easy identification Fault creation & rectification provided Track printing with different colours on different sections on component board for easy circuit training Legend Printing on PCB for easy identification of components Can be used as a standard 20 MHz Dual Trace Oscilloscope Technical Specifications Operating Modes Channel I, Channel II, Channel I & II Alternate or chopped, Controls provided on PCB. Channel selection signals available at Test points. X-Y operation 1:1 Vertical deflection (Y): (Identical channels) Bandwidth : DC-20 MHz (-3 dB) Risetime : 17.5 ns (approx.) Deflection coefficients : 12 calibrated steps 5 mV / cm - 20 V / cm (1-2-5 sequence) Accuracy : ±3 % Input Impedance : 1 MW II 30 pF Input coupling : DC - AC - GND Maximum Input voltage : 350 V (DC + Peak AC) Pre-Amp, Final Amp Outputs at Test Points. Timebase: Time coefficients : 18 calibrated steps, 0.5 ìs / cm - 0.2 s / cm (1-2-5 sequence) with magnifier x 5 to 100 ns / cm, with variable control to 40 ns / cm Accuracy : ± 3 % (in Cal position) TB generation at Test Points Sweep Output : 5 V (approx.) Trigger System: Modes : Automatic or Variable Source : CH I, CH II, External Slope : Positive or Negative Coupling : AC, TV Frame Sensitivity : Int 5 mm, Ext 1 V (approx.) Trigger Bandwidth : 30 Mhz Horizontal Deflection (X) Bandwidth : DC - 2 MHz (-3 dB) X - Y mode : Phase Shift < 5° at 50 KHz Deflection coefficients : 12 calibrated steps 5 mV / cm - 20 V / cm (1-2-5 sequence) Input Impedance : 1 MW II 30 pF Component Tester : Test Voltage : Max 8.6 V (Open) rms Test Current : Max 8 mA (Shorted) rms Test Frequency : 50 Hz, Test circuit grounded to chassis General Information Cathode Ray Tube : 140 mm Rectangular medium short persistence (P31) Accelerating potential : 1.9 KV (approx.) Display : 8 ×10 cm Calibrator : Square Wave generator 1 KHz (approx.), 0.2 V ±1% for probe compensation Z Modulation : TTL level Stabilized Power Supply : All operating voltages including the EHT Power Supply : 220 V ±10 %, 50 Hz / 60 Hz on request Power Consumption : 40 VA(approx.) Weight : 7.3 Kg (approx.) Dimensions (mm) : W 450 × D 420 × H 145 Operating Temp. : 0-40°, 95 % RH Finish : Off white with side handle Fault Simulation : Total 15 Faults included Included Accessories : DMM 1 No., Manual 1 No., Student manual 1 No., BNC-BNC Cable 1 No., BNC - Probe tip Cable 1 No., Test Prods 1 pair,. Additional Jumpers 10 Optional Accessories : Switchable Probe X 1 - X 10. 

Facsimile Trainer & Facsimile Dynamic Lab Demonstrator for Vocational Training and Didactic Labs

CET-0009

Equipment for Education, Engineering and Vocational Training - Facsimile Trainer & Facsimile Dynamic Lab Demonstrator - Facsimile Demonstrator is a complete educational system designed to give a clear accurate and realistic in-sight into the working of the Fax Trainer. This trainer is designed on CAD system and the specifications are given below: Housing : It is housed in an elegant metal cabinet Dimension : 82cms x 19cms x 48cms Weight : (Approx.) 15KGS Power : 230VAC - Mains operated SPECIFICATIONS Type :Desktop Transceiver Applicable Line : Public Switched Telephone Network Compatibility : CCITT Group 3 Scan Method :Horizontal -Contact Image Sensor,Vertical-intermittent Scanning by stepper Motor Document Size : Max - 216 X 1 000 mm , Min - 70 X 120 mm Document Thickness : 0.06 - 0.15 mm Print Method : 0.06 - 0.15 mm Print Method : Thermal Printing Recording Paper Size : 216 mm X 15M, outer diameter=40mm Recording Width : 216 mm Resolution : Horizontal - 8 dots/mm Vertical - Standard Mode - 3.85 lines/mm Fine mode - 7.7 lines/mm Coding Scheme : MH Modem : V.29, V.27ter with fall back function Modem Speed : 9600/7200/4800/2400 bps(automatically fall back) Power Supply: Single phase 22OV, model:180-260V AC, 50/60Hz, Single phase Power Consumption : Standby: 6W ,Max: 90W Operating Environment : Temperature: 5-400 C (41-950F) ,Humidity: 45-85%. 

Power Supply Trainer & Lab Training Kit for Vocational Training and Didactic Labs

CET-0010

Equipment for Education, Engineering and Vocational Training - Power Supply Trainer & Lab Training Kit - The Power Supply Trainer is a comprehensive training system for the laboratories. It is useful in understanding the various concepts of a DC Power Supply. As we know that power supply is a very basic element of any electronic circuit or appliance. Starting from a mobile charger to a huge Computer system, each needs an efficient Power Supply. It is essential for an engineer to know basic concepts of Electronic Power Supplies. This trainer describes the Transformer,Rectifiers, Filters, Regulators, Role of Bleeder resistor, Load and Line regulation etc. While performing any experiment students have to connect the links by patch cords so it is very helpful for students to learn the inputs and outputs of different sections of any Power Supply circuit. It also consists of a demonstration bridge which is made up of LEDs for visualization of each part of an AC cycle. Real time appearance of components Test points are provided in different sections of Power Supply Demonstration bridge Designed by considering all the safety standards Provided with a detailed Operating manual Low cost yet including many experiments 2 Years Warranty Technical Specifications Input : 230 V ±10%, 50 Hz Outputs Zener diode outputs : 10 V, 5.6 V regulated Regulators outputs : +12 V regulated -12 V regulated 1.8 to 17 V adjustable Load : 5 K variable with 1 K fixed resistance. Bleeder Resistor : 5 K variable with 1 K fixed resistance. Astable Multivibrator : 1 Hz, 14 Vpp Transformer : Primary 0 to 220 V Secondary 18-0-18, 6-0-6 (500 mA) Fuse : 500 mA (slow blow, sparefuse is given in mains socket) Dimension (mm) : W 365 × D 265 × H 120 Weight : 2 Kg (approx) Experiments that can be performed Study of Transformers and its working Study of Two diode Full Wave Rectifier Study of Full Wave Bridge Rectifier Study of Demonstration Bridge Study of Ripple Factor and to calculate Ripple Factor of Half Wave, Full Wave and Bridge Rectifier Study of LC and ð filter Study of Bleeder Resistor and its effect on load current Study of Zener Diode as Regulator Study of Positive Regulated Supply Study of Negative Regulated Supply Study of Adjustable Regulated Supply Study of Line Regulation Study of Load Regulation.