Thank you readers for your overwhelming response to our previous guide (Nov 09) about upcoming bank exams. On popular demand,we are posting the list for the Bank Jobs Recruitment – 2010. Although there were not many notifications, we hope of an increase as months progress.
Bank Post & Vacancies Last date to apply
Corporation Bank 80 Probationary Officers April 8th 2010
Bank of Baroda 1200 Probationary Officers April10th 2010
Syndicate Bank 426 Specialist Officers April 10th 2010
39 Officers & 38 Clerks April 12th 2010
Bank of Baroda NEW 2000 Clerks April 17th 2010
Canara Bank NEW 1000 Clerks & 500 PO April 24th 2010
United India Insurance NEW 200 Admin.Officers April 19th 2010
Sunday, April 4, 2010
Upcoming notifications
See the table below for upcoming & currently open bank recruitments along with their last date for applying ,for the month of December.Click on the name of the bank to view that specific recruitment notice.(each link opens in a new window)
posted at http://www.bankexamsindia.com
Posted by B.Tech Live projects for ECE,EEE,EIE,ICE at 6:18 PM 0 comments
Labels: Notifications
Video related circuits
- 23cm FM ATV Platinum Receiver (PDF)
- 8 x 8 Audio-video switch
- An automated, self-recording surveillance camera using an SD memory card for recording digital video
- Apple IIe RGB to CGA
- AVR (AT90S2313) composite PAL colour bar generator
- Camera switching circuit to run multiple cameras with one monitor
- Circuits to transmit and demoludate RF / video signals over fibre optic cable
- Closed-Caption Decoder
- Commodore 64 Video Modulator 251025 Schematics
- Commodore 64 Video Modulator 251696 Schematics
- Commodore RF modulator
- Decoder for encoded transmissions in Videocrypt and D2MAC
- Generate composite color video signals in software using an SX microcontroller
- Generate video signals in software using PIC
- Homebuilt video digitizer Mark I
- Homebuilt video digitizer Mark II
- LH0032 video amplifier
- LM359N video amplifier
- Macrovision removal
- Motorized Video Camera Mount
- Motorized Video Camera Mount
- PIC micro frame grabber (TDA8708)
- PIC-Tock video clock
- Run video and camera power up to 2000 feet over ordinary four conductor telephone wire (PDF)
- Simple AV (audio / video) wireless transmitter
- S-video to composite video adapter
- S-Video to RCA adapter
- Television signal amplifier
- TV RGB signal output from a SVGA graphics card
- TV Signal Amplifier covers frequencies from 40MHz to 900 MHz
- TV Transmitter - VHF band TV transmitter using negative sound modulation and PAL video modulation
- TV video transmitter using LM1889
- TV/Radio antenna cable galvanic isolator
- VGA converter for video projectors and fixed frequency monitors
- VGA to PAL and NTSC converter
- VGA to RGB + composite sync -converter
- VGA to SCART adapter
- VGA to TV conversion circuit
- VGA to TV converter
- VHF/UHF TV modulator
- Video Activated Relay
- Video amplifier
- Video Clock Superimposer
- Video clock superimposer using PIC16C711
- Video DVM - Display voltage on a TV - based on Atmel AT90S1200 and generates vid signal in software
- Video Signal Amplifier
- Video signal amplifier circuit
- Video signal edge enhancement
- Video Stabilizer/MacroVision Removal
- Video switcher - run up to four cameras into one video monitor (PDF)
- Video/Audio Wireless Transmitter
- YBox2 - DIY networked set-top box that connects to a TV to deliver Internet content
Posted by B.Tech Live projects for ECE,EEE,EIE,ICE at 5:17 AM 0 comments
Timing & Oscillator circuits
- 24" Wall Clock
- 28 LED clock timer
- 3 - 12 MHz Signal Generator
- 5 to 30 Minute Timer
- 555 timer circuits
- 555 Timer Tutorial + Circuits
- A GPS receiver based frequency standard
- AD9852 DDS schematic
- AF variable frequency generator using 555 IC
- Alarm clock based on Atmel AT89C2051 and Dallas DS1307 RTC chip
- Astable 40KHz clock
- Astable Multivibrator
- Astable Multivibrator Projects / Circuit diagrams
- Audible timer that can be used as a cooking timer for roasting peanuts for example
- Bedside lamp timer
- Binary clock
- Binary clock using LED matrix to display a binary clock with 6 digits of 4 binary bits each
- Budget timer
- Build A 100Khz Crystal Calibrator
- Build a synchronous clock locked to the mains frequency
- CA4060B Timer Circuits
- Cheap 40KHz clock using one gate of a 74C14
- Clock divider
- Clock doubler
- Clock generator
- CMOS oscillator using 74C14 inverting Schmitt trigger
- Collection of timer circuit diagrams to generate very long delays
- Constant Reactance Voltage Controlled Oscillator (PDF)
- Continuous Coverage V.F.O. for H.F. (PDF)
- Countdown timer with relay
- Crystal 32.768KHz CMOS Oscillator
- Crystal heater / temperature stablization circuit (TXCO)
- Crystal oscillator using a CMOS or HCMOS inverter
- Crystal switcher using diodes
- D Flip-flot one-shot circuits (PDF)
- D.I.Y. Clock Oscillator based on 555 timer
- DDS oscillator based on an Analog Devices AD9859 and an Atmel ATmega16 microco (Microsoft Word)
- DDS using AD9835
- DDS/PLL based VFO synthesizer
- Decimal DDS Signal Generator
- Digital clock based on 74 series logic
- Digital clock that receives and displays the time from the Rugby MSF radio transmission (PIC16F877)
- Digital Clock with Alarm Using DS1307
- Digital Stopwatch 0-60sec
- Digital Stopwatch 0-99sec
- Digital timer with 7-segment display and pushbuttons
- Direct Digital Synthesis VFO for HF Bands - based on Analog Devices AD7009 DDS (PDF)
- Divide by 1.5 counter (PFD)
- Egg timer
- Experimental Base Bias Tuned VFO
- Experimental DDS frequency synthesizer uses the AD9851
- Frequency Tripler using the CA3028 (PDF)
- Giant nixie clock
- GPS-based universal clock generator
- HCMOS Gates Make Frequency multipliers (PDF)
- High Precision GPS/TV controlled Reference Oscillator
- High-output square wave generator (PDF)
- Homemade scope clock using a DG7 tube and a Microchip PIC16F876
- IC oscillator 1...30MHz using 74LS04 chip
- Ice Tube Clock - Vacuum fluorescent display (VFD) clock
- LED matrix clock
- Line powered 60Hz clock generator (PDF)
- Long duration timer using 4060 12-stage binary ripple counter
- Low Distortion Crystal Oscillator (PDF)
- Micropower pulse generator (PDF)
- Micro-power pulse generator (PDF)
- Mixer VXO circuit diagram
- Monostable multivibrator
- NE555 Basic Monostable
- Oscilloscope CRT Clock
- Panel-mounting clock
- Photo timer circuit using NE555
- PTT Delay Circuit
- Push Button Switch Debouncer
- 'Rounding Off' a square wave
- Selection of 14 oscillator circuits include sinewave, audio, logic and LED flashers
- Sidereal clock project with circuit diagrams
- Signal Frequency Beat Frequency Oscillator
- Simple AF-oscillator / signal generator using pair on 2N2222 transistors
- Simple Divide-By-N using 161 series chip (PDF)
- Simple Function Generator using TL084 or other opamp
- Simple GPS Stabilised 10 MHz Oscillator
- Simple Sine Wave Oscillator including a PCB layout
- Single-digit Nixie clock
- Sleep Timer
- Special Function Timer Circuits (LM555)
- Square wave oscillator using CMOS 4011 NAND chip
- Square wave to sine wave converter
- Sun tanning timer
- Super VXO
- Switch debounce using 555
- Time Delay Relay using 4011 CMOS NAND gate
- Time Delay Relay using 555 timer
- Timer circuit based on a 14536 and 4011 CMOS chips that can be calibrated using a frequency counter
- Tiny Crystal Oscillator using LP2980 (PDF)
- Triangle / Square wave generator
- Triangle / Squarewave Generator using a 1458 dual opamp
- Tuning VFOs With A PN-Junction
- TV based Receiver for a Standard Frequency Generator
- Two nixie display clock
- Unusual frequency dividers (PDF)
- VCO - Voltage Controlled Oscillator covers around 70-210 MHz
- VCO covers 300MHz to 500MHz based on Maxim MAX2608 VCO
- VFD (vacuum flourescent display) clock
- Weston Voltmeter Clock
- Wide-swing Variable Crystal Oscillator
Posted by B.Tech Live projects for ECE,EEE,EIE,ICE at 5:16 AM 0 comments
Transmitter circuits (Also check out RF post)
- 1 valve CW transmitter
- 1 Watt AM transmitter for the 10 meter band (28MHz)
- 1.5 volt tracking transmitter
- 1.5V tracking transmitter
- 12-meterband QRP AM oscillator transmitter using a 2N2219 transistor
- 144.000 Mhz CW Transmitter
- 15 watt FM transmitter
- 15 watt FM transmitter
- 150mW FM transmitter
- 175KHz inductive pulse transmitter (PDF)
- 2 Transistor FM Voice Transmitter
- 2 valve CW transmitter
- 250mW HF CW transmitter
- 27MHz AM/CW transmitter
- 3 Watt FM Transmitter
- 30-Meter QRP Transmitter for Morse Code
- 3-3.5 Watt FM Transmitter
- 4 Transistor Tracking Transmitter
- 4 Watt FM Transmitter
- 4 watt FM transmitter
- 4 watt FM transmitter
- 40 Meter, 5 Watt QRP Transmitter
- 433MHz transmitter using SAW resonator
- 4-transistor transmitter
- 5 Watt HF CW transmitter
- 50 MHz crystal controlled audio bugging device
- 500kHz Transmitter design
- 500mW AM transmitter for the 20 meter band (14MHz)
- 500mW FM PLL transmitter 88-108MHz
- 5W Chinese PLL FM Transmitter With LCD Printed Circuit Board (PCB)
- 7MHz QRP transmitter
- 80 Metre CW beacon / transmitter circuit diagram
- 80 Metre DSB Transmitter
- 80m ceramic resonator VXO CW transmitter
- 88-108Mhz FM Radio Transmitter with 3 transistor stages
- A 3m (100 MHz) small bug (ZIP file)
- AM FM Simultaneous Transmitter Using Digital IC (CD4001)
- AM transmitter
- AM Transmitter
- AM Transmitter
- AM transmitter using no power supply
- AM/FM Simultaneous Transmitter Using Digital IC
- BC547 80M SSB QRP Transceiver
- Coilless FM transmitter using CD4069 CMOS hex interverter chip
- Cordless telephone bug
- Crystal controlled FM transmitter
- Crystal controlled transmitter (46.515MHz, 1 transistor FM)
- Crystal controlled transmitter (46.515MHz, 3 transistor FM)
- Digitally controlled FM transmitter with 2 line LCD display
- Easy 2-meter transmitter
- Europa30, a 10MHz QRP TX
- FM audio bug using BC817 and BRF92
- FM Beacon Broadcast Transmitter (88-108 MHz)
- FM bug
- FM Microphone micro-transmitter that is small and sensitive
- FM Microphone transmitter / FM buf circuit diagram
- FM telephone transmitter
- FM transmitter
- FM transmitter based on Colpitts oscillator design
- FM transmitter bug
- FM transmitter for bird listening
- FM Transmitter using two transistors
- FM Transmitter with range of about 300 feet
- FM Voice Transmitter
- High power FM bug
- Ipod Stereo FM transmitter with 1W output power
- KMDTA Wireless Motion Detector Transmitter Kit
- Light sensing RF transmitter
- Long range FM transmitter using 2N3866 for output stage
- Low Power FM Transmitter
- Low Power FM Transmitter
- Low Power PLL FM Transmitter based on LMX1601 and Atmel ATtiny2313 or AT90S2313 microcontroller
- Medium range transmitter circuit
- Medium range transmitter using pair of 2N3904 transistors
- Micro Power FM Broadcasting Circuits
- Micro-Spy with FETs
- Micro-Spy with TTL
- Micro-Spy with USW
- Miniature FM Transmitter
- Miniature FM transmitter
- Miniature FM Transmitter #1
- Miniature FM Transmitter #2
- Miniature FM Transmitter #3
- Miniature tracking transmitter
- MW Transmitter can be used as an inter-room radio telephone
- One transistor FM transmitter / FM bugging device
- One Valve CW transmitter
- PLL based bug transmitter
- Pocket APRS (GPS Position) transmitter
- Pocket Transmitter that can cover 20 to 25 meters with a telescopic antenna
- Powerful AM transmitter
- QRP HF transmitter
- QRP SSB transmitter
- QRP transmitter circuit diagrams
- RF/SS Handie Hopper Transmitter Schematic
- Sensitive FM Transmitter
- Sensitive FM transmitter
- simple 430MHz band FM transmitter uses only 2 FETtransistors
- Simple FM microphone
- Simple RF transmitter
- Single transistor FM transmitter
- Small FM Transmitter
- Small FM transmitter using SMD components
- Small radio transmitter
- Small Radio Transmitter
- Spark gap transmitter
- Tiny FM transmitter using SMD (surface mount devices)
- Tracking transmitter
- Transmitter using LM317
- Tube Transmitter with 5763 power amplifier
- Two transistor FM transmitter / FM bug
- Two transistor FM transmitter circuit diagram and PCB layout
- Two Valve 40m CW Transmitter
- Wireless FM Transmitter
- Wireless microphone
- Wireless transmitter for PIR using Holtek HT12E
Posted by B.Tech Live projects for ECE,EEE,EIE,ICE at 5:16 AM 0 comments
Telephone & Intercom related schematics
- 1-line telephone status indicator powered from a 3V battery (PDF)
- 4-line telephone status indicator that is polarity independent (PDF)
- 8-line intercom system using 89C51 microcontroller
- 900MHz cordless phone bug
- Assorted telephone circuits (ring generator, in-use indicator, audio interface)
- Audio Visual Indicator for Telephones
- Caller ID decoder (requied Postscript file viewer and/or Ordcad schematic capture)
- Cellular Phone calling Detector
- Cellular Phone calling Detector
- Cellular Phone calling Detector
- Cellular Phone calling detector (detects RF field)
- Cordless phone backup power source using LM317L
- Cut Phone Line Detector
- Cut Phone Line Detector
- Cut Phone Line Detector
- Cut phone line detector
- Cut telephone line detector
- Detecting a telephone ring signal
- Digisound ring modulator
- Digital/Standard Phone Line Tester
- DSL / ADSL phone line filter
- FM Telephone Bug
- FM Telephone Bug
- FM Telephone Bug
- FM telephone line bug transmitter (88MHz to 94MHz)
- Greek telecard reader
- High Quality Intercom using LM380 amplifier IC
- Hold function for Telephone
- Home made PBX / PABX
- Incoming call indicator (ZIP file)
- Infinity bug for remote telephone surveillance
- Isolated Telephone Interface
- Isolated Telephone Interface (phone tap) for tape recorder, PC sound card etc
- Line in use indicator that handles two independent phone lines (PDF)
- Low cost intercom using transistors
- Off line Telephone tester
- Phone "Hold" With Music
- Phone Broadcaster / telehone bugging device circuit diagram
- Phone Busy Indicator
- Phone Busy Indicator
- Phone Busy Indicator
- Phone In Use Indicator circuit diagram
- Phone in-use (manually activated)
- Phone In-Use Light
- Phone line in use indicator
- Phone line indicator
- Phone line to audio interface
- Phone Off-Hook Indicator using CD4049 hex inverter
- 'phone rang' indicator light
- Phone ring circuit schematic using a piezo buzzer for sound output
- Phone to audio interface for SSI202 input
- Phone-In-Use indicator
- Remote Telephone Bell Ringer
- Ringing Phone Light Flasher
- Ringing Phone Light Flasher
- Ringing Phone Light Flasher using optocoupler and relay
- Simple alarm with telephone dialler interface
- Simple circuit to connect telephone equipment to audio mixer
- Simple intercom
- Simple Phone Tap
- Simple Phone Tap Circuit
- Simple Phone Tap circuit diagram
- Simple Skype VoIP analog adapter
- Simple speakerphone
- Simple telephone line tap for intercepting telephone calls
- Smart Phone light
- Soft Musical Telephone Ringer
- Soft musical telephone ringer
- Talking phone dial monitor (PDF)
- Taxi phone automatic dialler
- Telephone amplifier
- Telephone amplifier
- Telephone auto-dialler (useful for an alarm dialler)
- Telephone Hold Button
- Telephone Hold Button
- Telephone Hold Button circuit
- Telephone in use light
- Telephone Line Filter / Protector
- Telephone Line Monitor
- Telephone line monitor
- Telephone line monitor
- Telephone line simulator
- Telephone music on hold interface
- Telephone privacy adapter
- Telephone Record Control using 2N4360, 2N2222 and 2N2102
- Telephone Recorder
- Telephone Recorder
- Telephone recorder to record phone conversations automatically
- Telephone ringing circuits
- The 89C51 PABX
- The Link 4+0 - Internal Intercom (Doesn't offer external line access)
- The Link A2B+1 (the Link Telephone Intercom - DTMF version)
- The Original 2 Phone Intercom Link Design
- Universal telephone hold
- Use old telephones as an intercom
- Wireless Telephone Bug
Posted by B.Tech Live projects for ECE,EEE,EIE,ICE at 5:15 AM 0 comments
Test Equipment & Circuit schematics
- 10Hz - 100KHz D.D.S. Function Generator
- 2.5 GHz Frequency counter
- -20 dB Couplers for use with a with a spectrum analyzer or other sensitive detector
- -20 dBm, 14.060 MHz Precision Signal Source
- 220V live wire-in-wall scanner
- 250MHz RF Generator with 1kHz display resolution
- 3 in one tester (audio, tone generator, diode/circuit tester)
- 555 go / no-go tester
- 555 Timer IC Tester
- 5Hz to 500KHz frequency meter
- AD9850 DDS daughterboard
- Alarm circuit to remind you to turn off your DMM (digital multimeter)
- Audible Logic Probe based on LM339 operational amplifier
- Audio Millivoltmeter
- Audio Test Oscillator
- Automatic heat limiter for soldering iron
- Battery Tester for 1.5 and 9V
- BCD readout frequency counter
- Beeper to find short circuits
- Beeper to find short circuits (continuity tester)
- Build an inexpensive Hall effect Gaussmeter
- Capacitance meter
- Capacitance meter - precision meter for small capacitors
- Capacitance meter that connects to multimeter
- Connection tester for checking solder joints and other connections
- Conrad Electronics MM3610D multimeter cable pinout
- Contactless Mains Voltage Indicator
- Contactless Mains Voltage Indicator
- Continuity tester
- Continuity tester
- Continuity tester 2
- Continuity Tester based on 4 x 2N3904 and 1 x 2N3905 transistors
- Continuity tester using transistors
- Crystal tester
- Crystal tester that covers a range of 32kHz to 24MHz
- DCC Ammeter using ZXCT1009 current monitor
- DDS from 1-60 MHz with built-in amplifier and variable output level using Analog Devices AD9851
- Design for a slightly more expensive Gaussmeter
- Digital SWR / Power Meter
- Digital voltmeter (DVM)
- Digital Voltmeter using ICL7107
- Digital Wattmeter, measures from nanowatts to kilowatts using AD8307, PIC16F876, LCD Display
- Dip Oscillator for HF
- Distortion Analyser
- Elecraft XG2 receiver test oscillator (PDF)
- Electric field & leakage detector
- Electronic Circuit for Crystal Parameter Measurement
- EMF field probe (electromagnetic field probe) covering up to 100kHz
- ESR Meter
- Exclusive 2.5 GHz Frequency Counter with Blue 2x16 LCD display
- Field Strength Meter (FSM) covers 2Mhz - 1Ghz with peak reception at 3-200Mhz
- Field strength meter for the 137 kHz band
- Fixed Frequency "Tuner Dipper"
- Fluke 8010 / 8012 Interface
- Frequency and capacitance meter
- Frequency Counter / Timer / Logic Tester
- Frequency counter measures to 2.5 GHz and offers LCD display
- Full Featured Transistor Tester
- Function generator based on 555 timer and three 2N2222 transistors
- Function generator based on 8038PCD function generator IC
- Function generator based upon 8038 waveform generator IC
- Grid dip meter
- Ground Fault Indicator
- Heathkit signal generator user manual and circuit diagram
- High Impedance Voltmeter
- High Resistance Voltmeter
- Homebrew signal generator tunable from 3 to 30 Mhz
- Improved DCC Ammeter (2009) using Zetex ZXCT1009 current monitor
- In-circuit electrolytic capacitor checker
- In-circuit electrolytic capacitor tester
- Inductive meter adapter to measure inductance using a frequency counter
- Latching Continuity Tester to help find intermittent faults, has quite a few innovative features
- Latching continuity tester using 4093
- LC meter with LCD display for readout
- LCD Frequency Counter
- LCD frequency counter (PIC16F84)
- Led display digital Voltmeter using ICL7107
- Line Output / Flyback transformer tester
- Linear Resistance Meter
- Linear Resistance Meter
- Linear scale analog watt meter / RF power meter
- Live line detector
- Logic probe
- Logic probe
- Logic probe based on CMOS 4001 chip
- Logic probe with 7-segment display based on 74LS00 and 74LS47
- Logic probe with pulser
- Low Power Antenna Analyzer and ATU Tuning Aid
- Low-Cost Phase Noise Measurement
- Microphone Circuit Test Oscillator
- Mini DDS (direct digital synthesizer) using an Analog Devices AD9832 (12MHz maximum frequency)
- Mini tester: Handles continuity testing, resistor testing, capacitor testing and diode testing
- Miniscope - simple all-valve 1-inch CRT oscilloscope
- MOSFET tester for N-type MOSFET transistors
- MOSFET transistor tester
- Multi wire cable tester that handles up to eight conductors
- Multi-trace scope display that allows up to 4 channels to be viewed on a single oscilloscope channel
- Opamp Design and Test Board
- Optical ballistic chronograph for measuring projectile velocity
- Oscillopscope triggering circuit for recording long transients at fast sweep speeds (PDF)
- Oscilloscope testing module (huntron circuit)
- Oscilloscope testing module (Huntron circuit) that shows Lissajous patterns
- Panel Mounting Radio Frequency Counter
- PCB board tester and RF detector circuir diagrams
- PCB VSWR bridge
- Philips SB-6668 frequency counter upgrade
- PIC based frequency counter
- PIC logic probe with pulser
- PIC16F84 based diode tester
- Picoammeter circuit schematic with 4 ranges using CA3420
- Pink Noise Generator for Audio Testing
- Poor man's frequency counter
- Precision audio millivoltmeter
- Precision Frequency Marker
- Precision VXO for Crystal Characterization & Matching
- Pulse Reading Logic Probe
- Pulse Reading Logic Probe
- Quickie servo tester for testing servo motors (based on Atmel AT90S2343)
- RCM710 electronic scale, technical manual including schematic
- Resistor decade box
- Return Loss Bridge
- RF field strength meter
- RF Power Meter for the QRP measures up to 25 watts
- RF probe circuit diagram and Autotrax PCB layout
- Schematics and C code for a 0-5V PIC LCD volt meter
- Schematics and C code for a PIC frequency counter operating up to about 50 MHz (7 segment)
- Schematics and C code for a PIC frequency counter operating up to about 50 MHz (LCD)
- Self Oscillating Amplifier for Distortion Testing
- Self-powered Fast Battery-Tester - Tests 1.5 to 15 Volt cells
- Sensor to display, built with thermistor, 12-bit ADC, 89S52 and LED display
- Service monitor / deviation meter circuit
- Servo Motor Test Circuit (LM555)
- Signal Tracer and Injector
- Simple diagnostic tool for use on repeaters in the field
- Simple electronic S meter
- Simple Frequency Counter
- Simple Ground Loss bridge for Ground Loss Measurement at LF
- Simple Inductance Meter
- Simple light sensor adapter for oscilloscope
- Simple Ph Meter
- Simple polarity detector
- Simple Polarity Tester
- Simple test equipment to build
- Simplified Measurement of Output Impedance for Audio Circuits
- Single chip digital voltmeter using ICL7129
- Soft Power On Tester for Amplifiers
- Sound pressure level meter
- Spectrum analyzer Mk 1
- Spectrum analyzer Mk 2
- Square wave oscillator (555) for test applications
- Stereo Test Tone Generator
- Stereo Test Tone Generator
- SWR Bridge 1 to 1000 Mhz (1GHz)
- TDR cable reflection tester (Time Domain Reflectometer)
- TDS/PPM Meter for measuring of the amount of salts in a solution
- The u-counter, a PIC based programmable frequency meter (PDF)
- Thermistor Thermometer: LCD version
- Time Domain Reflectometer (TDR)
- TinyScope - simple all-valve 1-inch CRT oscilloscope
- Transistor tester and signal injector
- Transistor tester using 555 timer and 4027
- Triple Stroboscope
- True RMS Watt Meter
- TTL pulse counter/logic probe
- TTL Pulse Reading Logic Probe
- TXTVb - 70cm ATV Test Generator (PDF)
- UHF signal generator
- Ultra-simple Voltage Probe
- Ultra-simple voltage probe
- Universal frequency counter & voltage meter
- UTP Cable Tester
- VCR Tuner Based RF Spectrum Analyzer Schematic
- VHF signal generator
- Wire tracer
- Wireless Frequency counter
- XTal Tester for testing quartz crystals based on a pair of BC550C PNP transistors
- Z80 controlled Viscometer project
- Zener diode tester based on a 555 timer
Posted by B.Tech Live projects for ECE,EEE,EIE,ICE at 5:15 AM 0 comments
Radio frequency projects
- 1 Watt 2.3 GHz RF Amplifier Using a MRF2001
- 1.5 W RF Power Amplifier type class-C
- 10 meter (28MHz) band RF amplifier
- 10 MHz WWV Receiver
- 10.7MHz FM detector
- 10W HF linear amplifier
- 136 kHz direct conversion receiver
- 14MHz SSB 10mW Transceiver
- 15M CW Transceiver Design
- 160m mini portable End Fed Half Wave Tuner - MkII
- 175KHz inductive pulse receiver (PDF)
- 18 dB LT1253 DDS Amplifier
- 2.3 GHz Power Amplifiers
- 20 Meter CW Transceiver
- 20 meters CW QRP Transceiver (PDF)
- 20 Watt GaAaFET Power on 2.3 GHz
- 200-400 MHz voltage controlled oscillator (PDF)
- 20dB VHF Amplifier
- 222 MHz Transverter
- 23 dB Bipolar DDS Amplifier
- 2304 and 3456 MHz Power Amplifiers
- 27MHz transmitter
- 2M - 20M transverter
- 2m (144MHz) Dual Gate FET Low Noise Amplifier
- 2N2222 40 Meter CW/DSB Transceiver
- 30 Meter, Discrete Component CW Transceiver Built Manhattan-style
- 30 W Digital Wattmeter for RF (0-500MHz)
- 30 watt FM linear amplifier
- 300 baud RF modem circuit schematic
- 30M Direct Conversion Receiver Project
- 30M PSK31 Transceiver
- 3W HF QRP linear amplifier
- 4 channel 433MHz remote control transmitter / receiver based on SM5162 and SM5172 chips
- 40 Meter Band Direct Conversion experimental receiver
- 40 Meter Popcorn Superhet Receiver
- 40 Segment LED S-Meter
- 40 to 6 Meter "No Tune" Transverter
- 40m band direct conversion receiver
- 42 Mc Band to 88 Mc Band (retrofit converter) Project
- 450-2000KHz AM receiver (ZN414)
- 455 Khz MF to AF converter used for DRM reception in a Yaesu FRG-100 receiver
- 45-860MHz Radio receiver based on UV916-tuner
- 49MHz walkie-talkie
- 5 tubes SSB QRP Transceiver for 20m Ham band
- 5 watt, 80 meter QRP CW Transceiver
- 50 MHz Receiver based on MC3372
- 500mW HF linear amplifier
- 500W HF linear amplifier
- 50MHz converter project based on a NE602/SA602/NE612
- 50MHz RF Power Amplifier using BFG97
- 56K RF Modem
- 6 Meter SSB transceiver
- 60-120MHz FM receiver with AFC
- 60W Linear amplifier using IRF840 power MOSFET
- 60W RF linear amplifier using IRF840
- 6m SSB & CW QRP transceiver
- 73MHz remote controller hallogen light
- 75 Meter QRP SSB Transceiver
- 78-80 MHz Superfast Scanner using a DDS (direct digital sythesizer)
- 7MHz SSB Transceiver
- 80 Meter CW ARDF receiver
- 80 meter direct conversion receiver
- 80m band direct conversion receiver
- 80m SSB & CW QRP superhet transceiver
- A compact L-match ATU for portable use
- A Multimode Phasing Exciter for 1 to 500 MHz from ARRL (PDF)
- Active antenna 1 to 20dB, 1-30 MHz range
- Active Antenna AA-7 HF/VHF/UHF, 3-3000MHz
- Active Antenna Experiments
- Active Antenna for AM-FM-SW
- Advanced VHF power meter (PDF)
- Aircraft Radio Communications Receiver
- AM BCB radio receiver
- AM receiver circuit diagram
- AM receiver for aircraft communications
- AM Short Wave Broadcast Receiver circuit diagram
- AM to FM conveter
- AM/FM/SW active antenna
- AM-Receiver for Aircraft communication (118.250MHz)
- An end-fed antenna, L-match coupler and resistive bridge for HF
- An Inexpensive Tone Encoder
- Assorted RF circuits
- Audible S-Meter
- Aviation band receiver
- Basic 10GHz / 24GHz gunplexer / gunn diode control circuit (PDF)
- Basic RF oscillator
- Basic Vox Circuit
- Bi-Directional 2.4 GHz One Watt Amplifier
- Bi-Directional 900Mhz One Watt Amplifier
- Bipolar transistor RF mixer
- Bootstrapping a Phase Locked Loop for Better Performance
- Broadcast-Band RF Amplifier
- Bug detector / countersurveillance monitor
- Bug detector with beep using 7413 or 74LS13
- Build a COS Detector to detect the presence of a carrier on a receiver
- Build a good GaAs FET preamp for 2 meters, 222MHz or 440MHz
- Car radio tunes the amateur bands
- Cascode 7 Experimental Receiver
- Cascode Hybrid-Based WWV Receiver for 5 MHz
- CB (27MHz citizens band) 2.5W transmitter
- CB (27MHz citizens band) receiver
- Class B series modulator
- Class E Power Amplifier Design (136KHz operating frequency)
- CMOS RF PLL sythesizer
- Compact 20 - A 14 MHz Direct Conversion Receiver
- Convert 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio
- Converter to Hear Amateurs on your FM Radio
- Converter to yune six metres on your two metre receiver
- COR Carrier Delay timer / Hang Timer
- Crystal Radio
- Crystal radio circuits including diode performance comparison
- DC40 - 40M Direct Conversion receiver
- Deluxe Direct Conversion Reciever
- Demodulator Schematic/Design using Gilbert Cell Mixer
- Digitally tuned radio board to create an embedded FM radio controlled by a Mega128
- Direct Crystal radio receiver examples
- Direction finder system
- Dopler RDF (radio direction finder) circuit
- Electroluminescent Receiver Kit includes circuit diagram
- Electronic Eavesdropping Devices Detector
- Electronic Eavesdropping Devices Detector (bug detector)
- Experimental DSB/CW QRP rig for 20 and 40 meter bands (PDF)
- External antenna for the GPS-38, Magellan 2000, or Eagle Explorer GPS receivers
- FM radio active antenna
- Four channel RF remote control
- Four Channel Wireless Transmitter and Receiver using RF modules (PDF)
- Galvanic isolated CAT & audio interface for amateur radio
- Generic VHF power amplifier
- GPS jammer
- Harmonic oscillator
- HF 10 watt amplifier for 18MHz using a 2SC1969/2SC1944 transistor
- HF/6M Antenna Tuner Preselector and Antenna Switcher
- HF/VHF mini portable antenna tuner
- HF/VHF portable antenna tuner
- High quality AM through your FM stereo
- High-Performance Direct-Conversion Receivers from ARRL (PDF)
- High-Performance, Single-Signal Direct-Conversion Receivers for ARRL (PDF)
- Homebrew 20m CW Transceiver
- Homebrew 30m CW Transceiver
- Homebrew 40m CW Transceiver
- Homebrew 6m DSB Transceiver
- Homebrew 6m SSB/CW Transceiver
- How to Build a 300MHz AM, RF Remote Control System
- ICOM CI-V interface with RS232 RTS to PTT
- Improved AM-Receiver for Aircraft communication
- Improved CMOS RF PLL sythesizer
- Improved FM Stereo Modulator
- inexpensive high speed microwave data link using an Alpha Gunnplexer for 10 Mbps data rate
- Junk Box NDB Low Pass Filter
- K8IQY's Original 2N2/40 CW Transceiver Rig
- Kenwood TR-7950 manual & schematics (PDF)
- KL 400 RF linear amplifier
- LF to HF Converter
- Linear FM 50 watt amplifier with BLY90
- Linear FM 50Watt with BLY90
- Low Frequency Circulator/Isolator Uses No Ferrite or Magnet (PDF)
- Low Power RF ID Transponder (PDF)
- MC13136 based narrow band receiver
- Medium Frequency TRF Receiver
- MF and HF Receive Antenna Splitter
- Morse Code Beacon Keyer
- Multiplier Generates Odd Harmonics (PDF)
- MW Enhanced Crystal Receiver using 741 IC
- MW/SW Radio receiver
- Novel crystal set requires no antenna, earth
- One transistor FM receiver
- One transistor regenerative receiver
- One Watt 2.45 GHz Linear Amplifier using RF Micro Devices RF2126
- One watt class-C RF amplifier (PDF)
- Op Amp Radio
- Op-amp based radio receiver
- Op-Amp Radio
- Phase Locking and Tuning
- Phase-Locking ULNs for Optimum Performance
- Phasing SSB exciter
- PLL synthesized FM radio that can decode DTMF
- Pocket sized 20m (30m) CW QRP transceiver
- Popcorn Direct Conversion Main Frame
- PSK Transceiver - Unique transceiver design does not use a SSB transmitter
- Q-multiplier
- QRP - Circuits for measuring RF Voltage, RF Current, RF Power, SWR
- QRP Antenna Tuner
- R2T2 Haywire Home Station
- Radio Wave Alarm
- Receive Loop Preamplifier for LF reception
- Receiver based on NE602
- Receiver building blocks
- Regenerative receiver for the AM broadcast band using two transistors
- Regenerative Short Wave Radio
- Regenerative shortwave receiver
- RF Actuated Keying Monitor
- RF front-end for triple conversion GPS receiver (PDF)
- RF Isolator Uses Differential Amplifiers
- RF noise bridge for HF
- RF Power Amplifier Module using Toshiba S-AV10H
- RF Power meter / dummy load
- RF preamp circuit diagrams
- RF Sniffer under 0.5MHz to above 500MHz
- RTTY terminal unit
- RX3302 receiver module schematic
- SA602, SA612 RF Mixer
- SCA Adapter - listen to advertisement free background music on FM broadcast radio
- SCA Subcarrier Demodulator for FM broadcast stations
- Send Morse on your VHF Rig
- Sensitive LW/MW/SW Shortwave general coverage receiver
- Simple 40 meters CW QRP Transceiver (PDF)
- Simple CW identifier for a FM repeater (PDF)
- Simple Dual Band SSB Transceiver (20/40 meters)
- Simple RIT circuit based on a 2N7000 FET
- Simple wireless radio data link
- Smooth Tone Clickless CW Sidetone Generator
- Some experiments with active or voltage probe antennas (VPA)
- SOP direct conversion receiver
- SOP receiver (PDF)
- SSB linear amplifier made from a bunch of 2N2218 transistors
- SSB Receiver / Exciter and Linear amp
- Stacked Torroid VFO Experiments 2008
- Subcarrier adapter to listen to hidden subcarrier signals on FM radio
- Super 80 ultra-simple SSB receiver for 3.5 MHz a basic superhet
- Super improved AM-Receiver for Aircraft
- Super Scanner 45-860MHz with 0.01Hz stepsize
- Superior TV-tuner receiver 45-860MHz in 2500Hz step
- Superregenerative 27MHz receiver
- SW30+ 30 Meter CW Transceiver
- Switching Diode Frequency Doublers (PDF)
- SWR bridge covering HF to VHF
- Synthesized HF receiver
- TBA120 narrowband FM receiver
- TDA7000 receiver
- The MRX-40 Mini Receiver (PDF)
- TR1001 868.35 MHz Hybrid transceiver schematic
- Two Diode Odd-Order Multiplier
- Two Transistor Reflex Radio
- TX Module Combiners (copied from commercial circuits)
- UHF Preamplifier covers 450MHz - 800MHz based on MPSH10 / BF180 / BCY90
- Universal USB digimode interface supports CAT (Yaesu), CI/V (Icom) and RS-232 (Kenwood) units (PDF)
- USB / CAT (CI-V) adapter tested with FT-8900, FTB-9800, VX-7R, VX-7, FT-817 and IC-706MkIIG
- Variable Bandwidth CW Filter
- Variety of receiver converter projects
- VFO from 2001 ARRL Handbook, page 14.20
- VFO from 2001 ARRL Handbook, page 17.74
- VHF 6 Meterband RF amplifier
- VHF receiver converterer
- VLF radio receiver schematic
- VLF Upconverter for Shortwave Receiver
- Wave Bubble - A design for a self-tuning portable RF jammer
- Wave Bubble self-tuning portable RF jammer
- Wee Willy 75 Meter DSB Transceiver Project
- Wideband SWR meter
- Wideband VHF/UHF/SHF 22dB RF preamp with MAR-6 or MAR-8 (MSA-0885)
- WLW 500KW Transmitter Schematic
- Yaesu band decoder schematic
- Yaesu FT-736R doppler compensation
- ZN414 receivers
Posted by B.Tech Live projects for ECE,EEE,EIE,ICE at 5:14 AM 0 comments
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