This circuit allows a 240V mains appliance to be controlled remotely via low-voltage cabling and a pushbutton switch. The mains appliance (in this case, a light bulb) is switched with a suitably-rated relay. All of the electronics...
Monday, September 30, 2013
Saturday, September 28, 2013
Alarm Clock With Day Selector
This circuit disables an alarm clock on Saturdays and Sundays when people like to sleep in but enables normal operation on Mondays to Fridays so that people rise in time for work or school. The core of the circuit is a 4017 decade...
Thursday, September 26, 2013
Simple Game Circuit
This is a very simple game circuit. You can play this with your friends. To win this game one has to scores hundred points in very short time. Incase if you want to restart the game you need to press S1 button switch.When supplies...
Tuesday, September 24, 2013
Simple NiCd Battery Charger
A simple NiCd charger can be built using ‘junk box’ components and an inexpensive LM317 or 78xx voltage regulator. Using a current limiter composed of R3 and a transistor, it can charge as many cells as desired until a ‘fully charged’...
Sunday, September 22, 2013
Body Charge Detector
It is well known that through such simple everyday activities as walking on a carpet or moving in a chair, the body accumulates a static charge - sometimes many thousands of volts. Due to its extreme sensitivity, this circuit will...
Friday, September 20, 2013
2002 Chevrolet Chevy s10 4 Wiring Diagram
2002 Chevrolet Chevy s10 4 Wiring DiagraThe Part of 2002 Chevrolet Chevy s10 4 Wiring Diagram: power distribution schematics, fuse block, battery, generator, ignition switch, crank fuse, neutral position, starter relay, solenoid,...
Thursday, September 12, 2013
Amazing Artificial LED Candle
The Akafugu LED Candle is an artificial candle that imitates the flickering of a real candle. Use it in place of a real tea candle: It will fit inside a tea candle casing or any holder made for tea candles.Features:Randomly flickering...
Labels:
amazing,
artificial,
candle,
led
Tuesday, September 10, 2013
Wednesday, September 4, 2013
Signal Tracer and Injector
A simple test circuit to fault find audio and radio equipment. Can be used to inject a square wave signal, rich in harmonics, or used with headphones as an audio tracer.Signal Tracer and Injector SchematicNotes:A single pole double...
Monday, September 2, 2013
300 3400 Hz Second Order Speech Filter
Using two op amps, this filter is designed for second-order response. It has a bandpass of 300 to 3400 Hz, for applications in speech or telephone work.300-3400 Hz Second Order Speech Filter Schematic&nbs...
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