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mic preamp agc

Automatic Gain Control – AGC Circuit

Received by Email - 09/30/2009

Automatic Gain Control or AGC is a circuit design which maintain the same level of amplification for sound [...]
sawtooth generator diagram

Sawtooth Generator Circuit with 741 IC

Received by Email - 09/22/2009

This sawtooth generator circuit use 741 IC and is used as a musical sound synthesizer. The sawtooth input [...]
light chaser circuit schematic

Light Chaser Circuit

P. Marian - 04/20/2009

This light chaser circuit (music-operated lighting effect generator) comprises five sets of 60W bulbs that are arranged in [...]
stereo noise reduction circuit schematic

Stereo Noise Reduction Circuit

Received by Email - 04/16/2009

The noise reduction circuit is based on the observation that noise is always disturbing in intervals when music [...]

Automatic NiCd Battery Charger Circuit

Received by Email - 03/14/2009

This circuit is an alternative to expensive battery chargers, the trick to lower the cost is to buy [...]
stereo audio balance indicator circuit schematic

Stereo Audio Balance Indicator

P. Marian - 01/17/2009

The simplest stereo balance meter circuit schematic available on the internet! When Left and Right signals are equal, [...]

2N3055 50W Audio Amplifier

P. Marian - 05/03/2008

A very simple audio power amplifier circuit built with 741, 2N3053, 2N4037, 2N3055 and MJ2955 which deliver up [...]
stabilized power supply circuit schematic

Stabilized Adjustable Power Supply 0-15V/5A

Received by Email - 04/27/2008

This regulated power supply can be adjusted between a few volts and 15V with P1 and with P2 [...]
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