Circuit Project Electronic

Archive for the 'meter' Category

lie detector circuit
Friday, August 5th, 2011

This is a false capture circuit or Lie detector circuit. The basic principle of the resistance of human skin. While dry skin is a resistance of about 1 Mega ohm but if the skin moisture resistance is reduced. When the body are excited or scared or not sure the skin is moist than usual.
Operation of [...]

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concentration test circuit
Friday, August 5th, 2011

This is the test concentration range, is ideal for a player to a game. Without a Net Amri alarm will be heard immediately.
Operation of the circuit is to use Q1, Q2, R1, R2, R3, R4, C1 and C2 together astable multi vibrator is a rectangular waveform generator (Square Wave).
It provides approximately 3 kHz frequency by [...]

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simple led light based music with lm318
Friday, August 5th, 2011

This is a simple circuit. Music can change the LED light level gamut.
Operation of this circuit is a circuit op amp IC1 / 1-IC1 / 5 compared to the characteristics of the circuit voltage.It has one pin acts as a voltage reference pin.That the pressure from the supply voltage and divide between R1 and R7 [...]

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