Miscellaneous circuit
Simple version. Full version location at http://circuitsradio.com
View original of this circuit: http://circuitsradio.com/schematics/electrical-engineering/Miscellaneous/index.html
1uS light pulse descriminator plus F to V converter (PDF)
1uS light pulse receiver plus post amp (MISC)
24 Line Parallel Interface for the PC (15k) - only schematic
741 Light Sensor
A mini-tutorial on HPs Advanced Design System software (ADS)
A selection of robotics projects
A two-way Morse practice set
A Visual CW Zero Beating Aid
AD524
AD526
AD536A
AD537
An Inexpensive X-ray Machine
Analog computer
Analog opto-isolator
Analog pulse counter
Analogue counter
APRS GPS tracker schematic (PIC16C73)
Assorted digital circuits
Audio Indicator
Automatic Dual-output Display
Automation Control via X-10
Barrys Coilgun Mark I (coil gun)
Barrys Coilgun Mark II (coil gun)
Barrys Magnetic Levitation. Magnetic levitator. The pages include complete design details for an antigravity relay to levitate small iron parts.
Bartletts Bisection Theorem. Modify passive filters for unequal terminations. (Theory)
Basement doorbell beeper (PDF)
Basic electronic circuits
Basic op-amp circuits
Bat detector
Bat detector
Bat detector (new)
Bat detector microphone pre-amplifiers
BayComm packet modem
Biasing Op-Amps into Class A
Black Light
Broadband 2MHz optical fiber receiver (PDF)
Broadband 5MHz optical fiber receiver (PDF)
Build an Infrared night scope
Build logic gates using discrete parts
Build Your Own Digital Setting Circles For Your Astronomical Telescope
CA3080
CA3140
Capacitance sensor
CD4014BM, CD4014BC
CD4051, CD4052, CD4053
Ceiling Fan Speed Control - For one of those 3 or 4 blade decorative fans.
Chaos generator
Circuit for a Critter Ridder
Clap Switch
Combinational Conjuring Trick
Comparator with controlled hysteresis
Component values and colour code
Computerize Your Room/Home
ConjuringTrick- Domino Box
Constant Temperature Circuit
Cup and bucket charge pump
Current sensing relay driver
Darkness monitor
Data switch and indicator, bidirectional
DC Push Button Motor Control Circuit
Deoderizer Fan Pushbutton Timer - A battery operated fan blows air accross a stinky pad. For use in a bathroom or car. Ive seen similar circuits used in plastic pot-pourri containers.
Designing Transistor biasing Circuits Using QBasic
Digital Call Sign Annunciator
Digital dial
Dinsmore 1490 digital compass
Discrete Bistable Flip Flop
Discrete Set/Reset Flip Flop
Distributed Control of an Automated Sorting Cell
Doorbell for the Deaf
Doorbell for the Deaf
Driving N-channel FETs from TTL
Economical Pump Controller
Electric field disturbance monitor
Electromagnetic field detector
Electromagnetic Field Detector
Electronic fish lure
Electroscope
ELF Monitor
Experimental data transmitter for fiber optics
Experimental fiber optic receiver
Fantastic Atom Expander
FCTS Project
Five projects for April Fools Day! (77k) Build a mysterious lamp, maddening dripper, TV remote control blocker, rattle box, and a truly smelly project.
Flash slave trigger
Flashing Brakelight
Fluid level detector
Fogger smoke machine
Frequency Dependant Negative Resistor (Using Opamps)
Full-duplex doorphone with 3 wires connection
G Strain energy absorber
Game referee circuit for snap & musical chairs
Garmin GPS data interconnect
Geiger counter
Geiger counter
Glitch detector
Gold wafer (smartcard) programmer
GPS receiver interface
Griffith Observatory Tesla Coil
Ground loops
HamComm modem interface
High Quality Intercom
High Quality Intercom
High-speed light receiver (PDF)
Hot Water Indicator
Hot Water Tank Indicator
How to generate random numbers
Industrial process control circuits
Inexpensive APRS Weather Station
Inexpensive seismometer project
Infra Red Link
Infra Red Remote Transponder
Insect Repellant
Insect Repellant
Intelligent switch
Intercom circuit
Intercom schematic
Introduction to Tesla Coils - Postscript
Ion detector
Ion detector
Large LCD Display Buffering Driver
Laser Communication System
Latch, Data bidirectional
Lazer Tag Equipment Modifications
LCD Emulator / Controller
LED Torch
Light detector
Lightning Activated Camera Shutter Trigger
Lightning Storm Detector
LM 1800 FM stereo decoder
LOW-COST TRANSISTORISED INVERTER
Low-power optical interrupter (PDF)
Magic Wand
Magic Wand Conjuring Trick
Magnetic Gun.
Magnetic levitation circuit
Magnetic levitation device
Making a FRED photopopper
MAX924 bar-graph level gauge
Metal detector
Metal Detector
Miniature Self-Powered Autonomous Robot
Miscellaneous Circuits
Miscellaneous simple circuits
Modified Howland Current Source. A Constant Current Source for a Grounded Load using a Single Op-Amp. (Theory)
Modulated light received (PDF)
Monostable Flip Flops (one shot)
Morse Code Beacon Keyer
Morse Code Beacon Keyer
Morse code display
Morse Code Practice Keyer 1
Morse Code Practice Keyer 2
Morse monitor
Morse paddle keyer
Multipliers (3n3 etc) for resistors and capacitors
Negative Ion Detector
Negative ion generator
Neon Desklamp
Nothing box. Nine neon relaxation oscillators do nothing but blink continuously for five years on a single set of batteries.
Op amp circuit
Op amp circuit #1- Basic inverting and non-inverting circuits.
Op amp circuit #2- Simple op amp differential amplifier (balanced input).
Op amp circuit #4- Simple 4-input mixer stage.
Op amp circuit #5- Single supply op amp circuit.
Parasite zapper
PE3342 Programmer Schematic
Peltier coolers/heaters
Perimeter Alarm
Phase Locking and Tuning
Phase shifter circuit
Phtorism with 12Volt
Pic24C programmer. Pic 16C/F84 ,24Cxx and 12C508 Combi programmer. Full mouse support, user friendly interface with pulldown menu, HEX save, Bin save, all popular programming interfaces supported PicBust option
Picprog
Pine Racecar Victory Judge
PL tone generator (NE567)
Plant watering watcher
PLLs using ULN Oscillators
Popular Electronics Ultrasound Detector
Pot Plant Power
Power line FM intercom
Preamplifiers, ultrasonic
Press Button Switch Debouncer
Programmable Unijunction Transistor
Programmator turbo v3.36.20. soft
Pulse Width Modulation DC Motor Control
Pulse width modulators (PWM)
Pulse width to voltage converter
Pump and hold (staircase)
PUT pair: 2 Tr equivalent to SCRs, SCSs and other 4 layer devices
Quiz Circuit
Quiz-Show Indicator
Radio Controlled Remote Control
Radio-controlled Digital Clock
Random noise generator
RDS Encoder
RDS Encoder
READY-TO -USE OBJECT COUNTER
Reducing Vibration Induced Phase Noise - Some Research Ideas
Relay driver, transistorised
Resistor colour code
Return of the StoneAge DiskDrive Logo Turtles
Robot wars: start here!
Satellite Supplies (Hardware)
Scaling ADXL50 accelerometer output
Service manual Panasonic tc-29v50r
Short-circuit beeper
Simple BFO metal detector
Simple Discrete Op amp- made with common transistors
Simple event counter
Simple IR detector
Simple Lie Detector
Simple metal detector electronic circuit
Simple nitrogen spark generator (PDF)
Single-ic Decoy Switch
Slot Car Racing Performance Display
Smooth Tone Clickless CW Sidetone Generator
Soft-touch Bi-directional Motor Driver
Solar Panel Charge Controller Circuit
Sound finding cricket
Sound finding cricket with phase detector
Speaker Microphone
Squarewave to Sine circuit
Static Electricity / Negative Ion Detector
Static Electricity / Negative Ion Detector
Stepper Motor Autonomous Control Kit
Stepper Motor Controller
Stepper Motor Experiments
Sudden Ionospheric Disturbance (SID) Receiver
Switch, Touch operated
Switching Diode Frequency Doublers (66k)
Talking Morse Code Practice Computer
Tank Overflow Preventer
TDA1526
TDA1541
TDA1543
TDA1545A
TDA1546T
TDA1547
TDA1551Q
TDA1552Q
TDA1553Q
TDA1554Q
TDA1555Q
TDA1556Q
TDA1557Q
TDA1558Q
TDA1560Q
TDA1561Q
TDA1563Q
TDA1572
TDA1579
TDA1593
TDA1596
TDA1602A
TDA1675A
TDA1771
TDA1904
TDA1905
TDA1908
TDA1910
TDA2003
TDA2004A
TDA2005
TDA2006
TDA2007A
TDA2008
TDA2009A
Teletext Adapter Package
Temperature Monitor
Tesla power receiver
Text to speech converter
The Aisin-Seiki GPS-Receiver (The US$20 GPS)
Three Power Supplies for the Garmin GPS-20 Sensor Board
Time Delay Relay II
Time to dust indicator (PDF)
Toggle Switch Debounced Pushbutton
Transistor, Diode, IC outlines
Twin-T tuned Ultrasonic Preamp
Two Diode Odd-Order Multiplier
u-Blox GPS receiver board
Ultrasonic dog whistle
Ultrasonic Dog Whistle
Ultrasonic generator
Ultrasonic Intruder detector
Ultrasonic Preamp with AGC
Ultrasonic Preamp with Twin-T tuning
Ultrasonic radar
Ultrasonic Receiver
Ultrasonic sound receiver
Ultrasonic switch
Ultrasonic transducer oscillator circuit
Ultrasonic Transmitter
Understanding Electricity - an analogy with water
Unusual Frequency Dividers (35k)
Up/Down Pulse Separator
UV light box
Variety of quick designs
Vat detector (old)
Very basic circuits
Vibration-Induced Phase Noise and Vibration Isolation (includes links to spreadsheets for vibration calculations)
Voltage Comparator Information And Circuits
Walking robot
Waveform Conversion Sine to Square/Square to Sine
Whistle responder
Wiper Speed Controller
View original of this circuit: http://circuitsradio.com/schematics/electrical-engineering/Miscellaneous/index.html