لینک مدارات مبدل کدها
  • Ultrasonic radar
  • Electronic fish lure
  • Ultrasonic sound receiver
  • Experimental data transmitter for fiber optics
  • Experimental fiber optic receiver
  • Ion detector
  • Darkness monitor
  • Electroscope
  • Simple event counter
  • Geiger counter
  • Light detector
  • Short-circuit beeper
  • LM 1800 FM stereo decoder
  • Glitch detector
  • MAX924 bar-graph level gauge
  • Ultrasonic generator
  • Negative ion generator
  • ELF Monitor
  • How to generate a Rotating Field
  • Chaos generator
  • Simple BFO metal detector
  • Voltage Comparator Information And Circuits
  • Electromagnetic Levitator
  • Build Your Own Digital Setting Circles For Your Astronomical Telescope
  • PL tone generator (NE567)
  • Bat detector
  • Bat detector microphone pre-amplifiers
  • DGPS receiver
  • Full-duplex doorphone with 3 wires connection
  • G Strain energy absorber
  • RDS Encoder
  • Toggle Switch Debounced Pushbutton
  • RDS Encoder
  • Discrete Set/Reset Flip Flop
  • Monostable Flip Flops (one shot)
  • Discrete Bistable Flip Flop
  • Talking Morse Code Practice Computer
  • Plant watering watcher
  • Capacitance sensor
  • Whistle responder
  • Nocturnal animals whisker
  • 12V DC electronic door chime
  • Biasing Op-Amps into Class A
  • Parasite zapper
  • Analog computer
  • BayComm packet modem
  • Morse monitor
  • HamComm modem interface
  • Morse paddle keyer
  • UV light box
  • Voice activated tape recorder switch
  • Random noise generator
  • Analog pulse counter
  • Analog opto-isolator
  • Pulse width modulators (PWM)
  • Pulse width to voltage converter
  • Fantastic Atom Expander
  • Black Light
  • Computerize Your Room/Home
  • Flash slave trigger
  • A Visual CW Zero Beating Aid
  • A two-way Morse practice set
  • Magnetic levitation device
  • Tesla power receiver
  • Lazer Tag Equipment Modifications
  • Garmin GPS data interconnect
  • Inexpensive APRS Weather Station
  • Walking robot
  • Vibrating Pocket Bug Detector
  • Basic op-amp circuits
  • Power line FM intercom
  • Intercom circuit
  • Lightning Storm Detector
  • Large LCD Display Buffering Driver
  • Text to speech converter
  • Ion detector
  • 1uS light pulse descriminator plus F to V converter (PDF)
  • Broadband 2MHz optical fiber receiver (PDF)
  • Modulated light received (PDF)
  • 1uS light pulse receiver plus post amp (MISC)
  • Broadband 5MHz optical fiber receiver (PDF)
  • High-speed light receiver (PDF)
  • Basement doorbell beeper (PDF)
  • Time to dust indicator (PDF)
  • Low-power optical interrupter (PDF)
  • Simple nitrogen spark generator (PDF)
  • Ultrasonic transducer oscillator circuit
  • Build logic gates using discrete parts
  • Jacob's Ladder
  • Sudden Ionospheric Disturbance (SID) Receiver
  • A selection of robotics projects
  • Bat detector (new)
  • Vat detector (old)
  • Variety of quick designs
  • Gold wafer (smartcard) programmer
  • Making a FRED photopopper
  • Griffith Observatory Tesla Coil
  • Fogger smoke machine
  • Dinsmore 1490 digital compass
  • Geiger counter
  • Electric field disturbance monitor
  • Inexpensive seismometer project
  • Digital dial
  • GPS receiver interface
  • Doorbell for the Deaf
  • Electromagnetic field detector
  • Insect Repellant
  • High Quality Intercom
  • Magnetic Gun.
  • Metal detector
  • Static Electricity / Negative Ion Detector
  • Ultrasonic dog whistle
  • Popular Electronics Ultrasound Detector
  • An Inexpensive X-ray Machine
  • Magnetic levitation circuit
  • PE3342 Programmer Schematic
  • Schmidt Trigger
  • u-Blox GPS receiver board
  • Assorted digital circuits
  • Basic electronic circuits
  • Miscellaneous simple circuits
  • Digital Call Sign Annunciator
  • Ultrasonic switch
  • Sound finding cricket with phase detector
  • Sound finding cricket
  • APRS GPS tracker schematic (PIC16C73)
  • No loss capacitor
  • Discrete logic decimal to BCD converter
  • Doorbell extender
  • Earthquake detector
  • Electromagnetic levitator
  • Jacob's ladder
  • Magnetic ball levitator
  • Photodiode amplifier
  • Relative wind angle indicator
  • Solid-stateTesla coil
  • Very basic circuits
  • Bat detector
  • FCTS Project
  • Smooth Tone Clickless CW Sidetone Generator
  • Morse Code Beacon Keyer
  • Lightning Activated Camera Shutter Trigger
  • Three Power Supplies for the Garmin GPS-20 Sensor Board
  • Driving N-channel FETs from TTL
  • Miniature Self-Powered Autonomous Robot
  • Electronic Dazer
  • Morse Code Practice Keyer 1
  • Morse Code Practice Keyer 2
  • 741 Light Sensor
  • Fluid level detector
  • The Aisin-Seiki GPS-Receiver (The "US$20 GPS")
  • Voltage follower with 1G ohm input (LM11)
  • Double-ended flashing voltage monitor - LM10
  • Morse code display
  • Intercom schematic
  • Pulse Induction Metal Detector
  • Scaling ADXL50 accelerometer output
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