Speech amplifier circuit.

admin April 7, 2010 10 Comments
Description. This circuit given here can be housed in the box containing the speaker to form a handy microphone amplifier.The device can be used by teachers,guides,lecturers etc for speaking in a crowdy or noisy environment. The circuit is designed...
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Sound shifter circuit

admin April 7, 2010 2 Comments
 Description. Here is superb sound shifter circuit that can be used to add effects to the input sound signal.The circuit is ideal for incorporating in toys and adds great fun.The circuit can be also used in mixers and recorders....
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3 Band graphic equalizer circuit.

admin April 7, 2010 14 Comments
Description. Here is a simple 3 band graphic equalizer circuit  made of a single op amp IC LF351 (IC1) and few passive components.The component values of this circuit are not very critical and can be replaced with nearest values...
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50 W transistor amplifier

admin April 7, 2010 39 Comments
Description.  A very rugged and reasonably power amplifier circuit that can be used  for any audio applications. The amplifier produces 60W rms at 50V supply  on a 8 Ohm load.The circuit is designed such that most of the components...
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Low cost amplifer.

jacky March 8, 2012 6 Comments
Description. No big deal here! You can make a decent power amplifier using just three transistors. All components used here can be obtained from your electronic junk box. Also you just need a 9V transistor radio battery to power...
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IR Headset

admin March 7, 2012 26 Comments
Description. Here is a simple IR headphone circuit that is suitable for listening to TV or radio with out disturbing others. For beginners the IR headset is a better option than FM head sets because they often produce desirable...
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3 W Stereo amplifier using MAX 7910

admin January 24, 2012 4 Comments
Description. A straight forward circuit diagram of a 3W stereo amplifier circuit using MAX 7910 IC is given here. This circuit is ideal for small power audio applications like portable CD players or radio sets. The circuit is designed...
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Audio level meter circuit

admin February 28, 2011 2 Comments
Audio Level Meter Description A simple and low cost audio level meter circuit that can be used to measure the audio level of your sound source.This circuit is a valuable tool for those who are interested in audio circuits....
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