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Car Battery Charger circuit diagram
Car Battery Charger
Nicad Battery Charger circuit diagram
Nicad Battery Charger
Pulse Charger for reviving tired Lead Acid batteries circuit diagram
Pulse Charger for reviving tired Lead Acid batteries
Batteries charger & PSU - ideal for digital cameras circuit diagram
Batteries charger & PSU - ideal for digital cameras
Deluxe Charge Rate Limiter for Small Capacity NiCad Batteries circuit diagram
Deluxe Charge Rate Limiter for Small Capacity NiCad Batteries
Ni -Cd Batteries Charger circuit diagram
Ni -Cd Batteries Charger
Digital Voltmeter circuit diagram
Digital Voltmeter
Automatic Headlight Brightness Switch circuit diagram
Automatic Headlight Brightness Switch
Dome Lamp Dimmer circuit diagram
Dome Lamp Dimmer
Sleeping-Aid circuit diagram
Sleeping-Aid
6 Channel Auto Reverse Sequential Disco Running Lights circuit diagram
6 Channel Auto Reverse Sequential Disco Running Lights
Linear FM 50Watt with BLY90 circuit diagram
Linear FM 50Watt with BLY90
Auto Heat Limiter for Soldering Iron circuit diagram
Auto Heat Limiter for Soldering Iron
Latching Continuity Tester circuit diagram
Latching Continuity Tester
Linear FM 30Watt circuit diagram
Linear FM 30Watt
IR transceiver 1.0 circuit diagram
IR transceiver 1.0
Basic UPS Power Supply circuit diagram
Basic UPS Power Supply
Light/Dark Detector circuit diagram
Light/Dark Detector
Self-powered Fast Battery-Tester circuit diagram
Self-powered Fast Battery-Tester
Simple but reliable car battery tester circuit diagram
Simple but reliable car battery tester
Fading LEDs circuit diagram
Fading LEDs
Battery-powered Night Lamp circuit diagram
Battery-powered Night Lamp
Precision Receiver Battery Low Voltage Alarm circuit diagram
Precision Receiver Battery Low Voltage Alarm
Sound Effects Generator 2 circuit diagram
Sound Effects Generator 2
Downed Model Locator II circuit diagram
Downed Model Locator II
Receiver Battery Low Voltage Alarm circuit diagram
Receiver Battery Low Voltage Alarm
Discharger for Receiver Battery Packs circuit diagram
Discharger for Receiver Battery Packs
Nite Rider Lights circuit diagram
Nite Rider Lights
Downed Model Locator circuit diagram
Downed Model Locator
Mini Metronome circuit diagram
Mini Metronome
Dancing LEDs circuit diagram
Dancing LEDs
Infa-Red Remote Control circuit diagram
Infa-Red Remote Control
One-IC two-tones Siren circuit diagram
One-IC two-tones Siren
Precision Audio Millivoltmeter circuit diagram
Precision Audio Millivoltmeter
Emergency Light & Alarm circuit diagram
Emergency Light & Alarm
Fridge door Alarm circuit diagram
Fridge door Alarm
Jogging Timer circuit diagram
Jogging Timer
Sound Level Indicator circuit diagram
Sound Level Indicator
Bicycle back Safety Light circuit diagram
Bicycle back Safety Light
1KHz Sinewave Generator circuit diagram
1KHz Sinewave Generator
Continuity Tester circuit diagram
Continuity Tester
Portable Microphone Preamplifier circuit diagram
Portable Microphone Preamplifier
Field-strength meter circuit diagram
Field-strength meter
AM Receiver circuit diagram
AM Receiver
Amplified Ear circuit diagram
Amplified Ear
Precision Metronome and Pitch generator circuit diagram
Precision Metronome and Pitch generator
Telephone line monitor circuit diagram
Telephone line monitor
6V Ultra-Bright LED Chaser circuit diagram
6V Ultra-Bright LED Chaser
Speed-limit Alert circuit diagram
Speed-limit Alert
LED or Lamp Flasher circuit diagram
LED or Lamp Flasher
Black Light circuit diagram
Black Light
IR Remote Control Jammer circuit diagram
IR Remote Control Jammer
Whistle Responder circuit diagram
Whistle Responder
FET Audio Mixer circuit diagram
FET Audio Mixer
Three-Level Audio Power Indicator circuit diagram
Three-Level Audio Power Indicator
Room Noise Detector circuit diagram
Room Noise Detector
Magnetic-Radiation Remote-Control circuit diagram
Magnetic-Radiation Remote-Control
Voltage Inverter II circuit diagram
Voltage Inverter II
IR Remote Control Tester circuit diagram
IR Remote Control Tester
Multi Rocket Launcher circuit diagram
Multi Rocket Launcher
"SimpleMouse" Smartcardprogrammer circuit diagram
"SimpleMouse" Smartcardprogrammer
Live-line Detector circuit diagram
Live-line Detector
Electronic Locker circuit diagram
Electronic Locker
IR Remote Control Tester circuit diagram
IR Remote Control Tester
Salt Taster circuit diagram
Salt Taster
Muscular Bio-Stimulator circuit diagram
Muscular Bio-Stimulator
Dark-activated LED or Lamp Flasher circuit diagram
Dark-activated LED or Lamp Flasher
Digital Step-Km Counter circuit diagram
Digital Step-Km Counter
Portable Mixer circuit diagram
Portable Mixer
Pulse-Generator & Signal-Tracer circuit diagram
Pulse-Generator & Signal-Tracer
Portable Headphone Amplifier circuit diagram
Portable Headphone Amplifier
Door Alarm circuit diagram
Door Alarm
73 MHz Hallogene Lamp Radio-Controlled circuit diagram
73 MHz Hallogene Lamp Radio-Controlled
Multi Wire Cable Tester circuit diagram
Multi Wire Cable Tester
Digital Radar Speedometer circuit diagram
Digital Radar Speedometer
Brightness Control for small Lamps circuit diagram
Brightness Control for small Lamps
Plants Watering Watcher circuit diagram
Plants Watering Watcher
Electronic Siren circuit diagram
Electronic Siren
Cellular Phone calling Detector circuit diagram
Cellular Phone calling Detector
iButton electronic lock circuit diagram
iButton electronic lock
Headlights Timer circuit diagram
Headlights Timer
Automotive 12V to +-20V converter (for audio amplifier) circuit diagram
Automotive 12V to +-20V converter (for audio amplifier)
Nocturnal Animals Whisker circuit diagram
Nocturnal Animals Whisker
Tan Timer circuit diagram
Tan Timer
Inverter circuit diagram
Inverter
DC Motor Reversing Circuit circuit diagram
DC Motor Reversing Circuit
Electronic Stethoscope circuit diagram
Electronic Stethoscope
Timed Beeper circuit diagram
Timed Beeper
PlayPIC® circuit diagram
PlayPIC®
High Voltage Stun Gun circuit diagram
High Voltage Stun Gun
Lightning Detector circuit diagram
Lightning Detector
AC Current Monitor circuit diagram
AC Current Monitor
Linear Resistance Meter circuit diagram
Linear Resistance Meter
Light switch circuit diagram
Light switch
PWM Motor/Light Controller circuit diagram
PWM Motor/Light Controller
The Link Telephone Intercom – Every Home Should Have One! circuit diagram
The Link Telephone Intercom – Every Home Should Have One!
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!