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DC Motor Reversing Circuit circuit diagram
DC Motor Reversing Circuit
Headlight Flasher circuit diagram
Headlight Flasher
Headlights Timer circuit diagram
Headlights Timer
Electronic Locker circuit diagram
Electronic Locker
Touch Switch II circuit diagram
Touch Switch II
5 to 30 Minute Timer circuit diagram
5 to 30 Minute Timer
The Original 2 Phone Link Design circuit diagram
The Original 2 Phone Link Design
Door Alarm circuit diagram
Door Alarm
Multi Wire Cable Tester circuit diagram
Multi Wire Cable Tester
MILLIGAUSS METER. circuit diagram
MILLIGAUSS METER.
18W Audio Amplifier circuit diagram
18W Audio Amplifier
Heating System Thermostat circuit diagram
Heating System Thermostat
Field-strength meter circuit diagram
Field-strength meter
Infra Red Switch circuit diagram
Infra Red Switch
Low-distortion Audio-range Oscillator circuit diagram
Low-distortion Audio-range Oscillator
Infra-red Level Detector circuit diagram
Infra-red Level Detector
Unipolar Stepper Motor Controller circuit diagram
Unipolar Stepper Motor Controller
AC Current Monitor circuit diagram
AC Current Monitor
Guitar Amplifier circuit diagram
Guitar Amplifier
10W Audio Amplifier with Bass-boost circuit diagram
10W Audio Amplifier with Bass-boost
60W Bass Amplifier circuit diagram
60W Bass Amplifier
60W Guitar Amplifier circuit diagram
60W Guitar Amplifier
6V Ultra-Bright LED Chaser circuit diagram
6V Ultra-Bright LED Chaser
The "UnFETtered Crystal Radio! circuit diagram
The "UnFETtered Crystal Radio!
UltraSonic Radar circuit diagram
UltraSonic Radar
Voltage Monitor circuit diagram
Voltage Monitor
0-50V 2A Bench power supply circuit diagram
0-50V 2A Bench power supply
Low Voltage Alarm circuit diagram
Low Voltage Alarm
Simple but reliable car battery tester circuit diagram
Simple but reliable car battery tester
Fancontrol circuit diagram
Fancontrol
Voltage Inverter II circuit diagram
Voltage Inverter II
Voltage follower with 1G ohm input resistance circuit diagram
Voltage follower with 1G ohm input resistance
LM317 VARIABLE POWER SUPPLY circuit diagram
LM317 VARIABLE POWER SUPPLY
Electronics Attenuator circuit diagram
Electronics Attenuator
Fixed Voltage Power Supply circuit diagram
Fixed Voltage Power Supply
ZN414 Portable AM Receiver circuit diagram
ZN414 Portable AM Receiver
Nicad Battery Charger circuit diagram
Nicad Battery Charger
Ultra-simple Voltage Probe circuit diagram
Ultra-simple Voltage Probe
Dome Lamp Dimmer circuit diagram
Dome Lamp Dimmer
Electronic Siren circuit diagram
Electronic Siren
Solid State Tesla Coil/High Voltage Generator circuit diagram
Solid State Tesla Coil/High Voltage Generator
XTal Tester circuit diagram
XTal Tester
TTL Power Supply with ‘Crowbar’ protection circuit diagram
TTL Power Supply with ‘Crowbar’ protection
Soft Musical Telephone Ringer circuit diagram
Soft Musical Telephone Ringer
Precision Receiver Battery Low Voltage Alarm circuit diagram
Precision Receiver Battery Low Voltage Alarm
On-Off Temperature Control circuit diagram
On-Off Temperature Control
60W Linear amplifier circuit diagram
60W Linear amplifier
Variable DC Power Supply circuit diagram
Variable DC Power Supply
Logic Probe circuit diagram
Logic Probe
LEDs or Lamps Sequencer circuit diagram
LEDs or Lamps Sequencer
Phono Preamplifier circuit diagram
Phono Preamplifier
Sound Operated Switch circuit diagram
Sound Operated Switch
Discharger for Receiver Battery Packs circuit diagram
Discharger for Receiver Battery Packs
Simple optical switch circuit diagram
Simple optical switch
Self-powered Fast Battery-Tester circuit diagram
Self-powered Fast Battery-Tester
Batteries charger & PSU - ideal for digital cameras circuit diagram
Batteries charger & PSU - ideal for digital cameras
Sound Level Meter circuit diagram
Sound Level Meter
Battery-powered Night Lamp circuit diagram
Battery-powered Night Lamp
2N3055 Power Amplifier circuit diagram
2N3055 Power Amplifier
Solid State Power Controller circuit diagram
Solid State Power Controller
Receiver Battery Low Voltage Alarm circuit diagram
Receiver Battery Low Voltage Alarm
12 Volt 30 Amp PSU circuit diagram
12 Volt 30 Amp PSU
Dual Polarity Power Supply circuit diagram
Dual Polarity Power Supply
Temperature-controlled Fan circuit diagram
Temperature-controlled Fan
Beeper to find short circuits circuit diagram
Beeper to find short circuits
10 Amp 13.8 Volt Power Supply circuit diagram
10 Amp 13.8 Volt Power Supply
Stereo Preamplifier with Bass-boost circuit diagram
Stereo Preamplifier with Bass-boost
Basic UPS Power Supply circuit diagram
Basic UPS Power Supply
Flyback Transformer Driver circuit diagram
Flyback Transformer Driver
Three-Level Audio Power Indicator circuit diagram
Three-Level Audio Power Indicator
Headphone Amplifier circuit diagram
Headphone Amplifier
Digital Voltmeter circuit diagram
Digital Voltmeter
Park Aid circuit diagram
Park Aid
Pulse Width Modulation DC Motor Control circuit diagram
Pulse Width Modulation DC Motor Control
Transformerless Power Supply circuit diagram
Transformerless Power Supply
High And Low Voltage Cut Off With Time Delay circuit diagram
High And Low Voltage Cut Off With Time Delay
Pulse Charger for reviving tired Lead Acid batteries circuit diagram
Pulse Charger for reviving tired Lead Acid batteries
High Current Power Supply circuit diagram
High Current Power Supply
Downed Model Locator circuit diagram
Downed Model Locator
Ni -Cd Batteries Charger circuit diagram
Ni -Cd Batteries Charger
High Voltage Stun Gun circuit diagram
High Voltage Stun Gun
Keys Finder circuit diagram
Keys Finder
Brightness Control for small Lamps circuit diagram
Brightness Control for small Lamps
Capacitive Sensor circuit diagram
Capacitive Sensor
Reverse Bias Oscillator circuit diagram
Reverse Bias Oscillator
Continuity Tester circuit diagram
Continuity Tester
Portable Mixer circuit diagram
Portable Mixer
Knightrider lights for model cars circuit diagram
Knightrider lights for model cars
Salt Taster circuit diagram
Salt Taster
Linear Resistance Meter circuit diagram
Linear Resistance Meter
Regulated 12 Volt Supply circuit diagram
Regulated 12 Volt Supply
Cellular Phone calling Detector circuit diagram
Cellular Phone calling Detector
Digital Volume Control circuit diagram
Digital Volume Control
Telephone amplifier circuit diagram
Telephone amplifier
Economy radar detector circuit diagram
Economy radar detector
Adjustable High/Low Frequency Sine wave generator circuit diagram
Adjustable High/Low Frequency Sine wave generator
Seismic detector circuit diagram
Seismic detector
Intercommunication (Intercom) circuit diagram
Intercommunication (Intercom)
Portable Microphone Preamplifier circuit diagram
Portable Microphone Preamplifier
500W low cost 12V to 220V inverter circuit diagram
500W low cost 12V to 220V inverter
Important!!!
We are not responsible for any injuries or damage caused by information from this website! Working with electricity is dangerous for your life, especially diagrams related to high voltage! We do not guarantee success in building devices using our diagrams! They are not tested by us. For questions about diagrams use author info below diagram or our contact page. Thank you!