Lamp Intensity Regulator

[English]

Different levels of light intensity when the reading is different during sleep, for that reason this circuit is created. How it works is very simple, just by adjusting VR1 potensio with maximum power of the lamp used is 150 watt.

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Infra Red Remote Tester

[English]
This circuit is very effective to test remote is working or not, the remote that can be tested only remotely using infrared such as air conditioning, television, and others. It works is very simple circuit, when the infrared sensors receive signals from the pin 2 sensor will generate a voltage, this voltage will lead the PNP transistor so that the LED lights and disc piezo (BUZZER) will be active.

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6 Band Graphic Equaliser Circuit

[English]
This circuit is a 6 band equalizer which is similar to the equalizer in winamp but winamp has 10 bands, you can adjust the sound on low, medium and high use IC 741 Op-Amp. With this circuit you can control the frequency of the desired tone. Basically, the series consists of the main components of IC 741 that can work on different frequencies will be determined by the potentiometer setting.

Audio frequency spectrum covers 6 bands: 50Hz, 160Hz, 500Hz, 1.6kHz, 5kHz, 16kHz. All potentiometers are linear type 100kO. This circuit provides sufficient impetus for normal use. Supply voltage range (6V-12V) makes the circuit very flexible.

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