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Tuesday, July 26, 2011

Simple Bill circuit


Simple amplifier 2 watt circuit


NTSC-PAL TV signal identifier


Stereo Amplifier 18 watt circuit

Circuit elements
R1 = 82 kΩ
R2 = 33 kΩ
R3 = 680 Ω
C1, C3, C4, C6, C7 = 100 nF
C2 = 1 nF
C5 = 47 µF
C8 = 100 µF
IC1, IC2 = TDA 2003


Audio Mixer Circuit

Circuit elements:
R1, R2, R3 3 1K 1/4W Resistor
R4, R5, R6 3 10K Logarithmic Pot
R7 1 1Meg 1/4W Resistor
R8, R10 2 10K 1/4W Resistor
R9, R11 2 100K Linear Pot
C1, C2, C5, C6 4 0.1uF Ceramic Disc Capacitor
C3, C4 2 22nF Ceramic Disc Capacitor
U1, U2 2 741 Op Amp
J1, J2, J3 3 Input Jacks Of Your Choice
MISC 1 Board, Wire, Knobs, IC Sockets


Video signal splitter


Echo Application Circuit


Baby Monitor Circuit

Electronic circuit description:  
Child needs to follow up ongoing by the parents, especially in his early years .. This simple circuit, small and relatively inexpensive monitor allows the child in the other room ..

 Transmitter Circuit 
baby monitor reciever circuit

Timer Circuit 5 to 30 min


TTL Seven Segment LED Counter


Battery Checker Circuit


Car parking Sensor


Description Department:

An electronic circuit that senses the presence of a nearby body of the car .. And give a warning sound or light to avoid the collision ...

Deaf and hearing impaired circuit


PHONE ALERT


DC Motor speed control circuit


Two LED flasher using lm555 or ne555 Ic


Dimmer 220 volt circuit


Remote control booster


LED Flip Flop


Monday, July 25, 2011

Remote control tester




Sound mixer circuit


Negative voltage converter


5V to 12V DC Converter step up Voltage Regulator


Voltage Divider


Step down DC power supply transformer less


Circuit elements:
Capacitor C1 470 uF .. Voltage 25 volts

Capacitor C2 470 nF .. Voltage 400 V

12-volt diode Wyzner .. Or no effort to choose

Diode Bridge Rectifier 1 Amp 300 v

Important notes ..
- Be careful with such a circuit because it is directly related with the source

- Stream of this department within the 100 mg volts .. And can be increased to increase capacitance C2

workshop brench power supply 24v, 12v, 5v circuit


Fuse status monitor

Build 40 Amp 13.8 Volt Power Supply

  
Electronic circuit description:


There are some electronic applications that may need to run a relatively high current circuits such as wireless transmission .. Or can even take advantage of this simple circuit to operate Ka-acid battery charger for small.

Specifications circuit   

Input voltage 220/110 volts .. By type of converter

Output voltage 13.8 volts

Output current 40 amp

Simple regulated power supply circuit 12 volts

 


Electronic circuit description:

This circuit is simpler and better nutrition departments of the Organization of the ongoing effort .. For this it is very common ..
In addition to the simplicity of installation .. Is also composed of elements of a cheap and available


Specifications circuit

Source of nutrition 220 volts or 110 by the converter

Output voltage: 12 volt constant voltage regulator

Output current: 1 amp

Integrated circuit containing the internal protection of minors

Sunday, July 24, 2011

Simple power supply 5 volt


Electronic circuit description:

This circuit is simpler and better nutrition departments of the Organization of the ongoing effort .. For this it is very common ..
In addition to the simplicity of installation .. Is also composed of elements of a cheap and available


Specifications circuit

Source of nutrition 220 volts or 110 by the converter
Output voltage: 5 V constant voltage regulator
Output current: 1 amp
Integrated circuit containing the internal protection of minors

Multiplication table circuit


Electronic circuit description: 

Amusing electronic circuit used to test the multiplication table for students

Portable amplifier 20 watt circuit


Electronic circuit description:
In the vital tourism in buses, schools and the need for a larger unit (amplifier) with appropriate capacity
To run a set of speakers or the subwoofer to be distributed in the area of ​​the bus interior through which radio instructions or descriptions things trip and described the scenes tourism