5 channel graphic equalizer by BC548 transistor

Sunday, December 5th, 2010

The graphic equalizer circuit the frequency adjust circuit. For some kinds of audio frequency response is not smooth. The frequency offset by the tone controls, may not work well. Because the bandwidth is too wide. , Requiring the use of e-equalizer circuit with a narrow bandwidth and is divided into frequency bands increased to 5 [...]

Versatile tone control using IC 741

Saturday, November 27th, 2010

This tone control circuit. A circuit design feedback tone control. This helps the smooth bass voice circuit and a rate increase – reduction of the signal at 18 dB. The power supply circuit is used from 12-24 volt and Shine Power consumption is 10 mA. The audio input is entered through the C1 coupling to [...]

Audio loudness control

Saturday, September 25th, 2010

Audio loudness control circuit used to add bass. More during the normal listening levels. Audio loudness control circuit is a passive circuit.Do not use the power supply. When the input signal into. Switch S1 is an option to use open (ON) using loudness control. Off (OFF) to use a bypass. When the switch S1 to [...]