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Simple Graphic Equalizer Circuit

admin August 20, 2009 1 Comment
About The Circuit Given below is the circuit diagram of a simple three band graphic equalizer circuit. An IC called LF 351 IC is used here which is designed to operate as a wide bandwidth single operational amplifier. The...
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Simple Sub-Woofer Amplifier

admin August 20, 2009 2 Comments
About The Circuit Given below is a 100 Watts sub-woofer amplifier that has been designed only with the use of transistors. There are mainly seven transistors, in which two of them are used in the pre-amplifier stage and four...
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Simple Tone Controller Circuit

admin August 20, 2009 2 Comments
About The Circuit A 2 transistor tone controller circuit is illustrated below. This simple circuit is made with the help of Baxndal tone control design. A 12 Volt DC power os required for the circuit. Also note that the...
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Low Cost Stereo Line Driver Circuit

admin August 20, 2009 2 Comments
About The Circuit A circuit diagram of a simple stereo line driver circuit is given below. BC 109c transistors are used for driving each channel by wiring them as emitter followers. Apart from the transistors, only a few passive...
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3 Input Mic Mixer Circuit

admin August 20, 2009 2 Comments
About The Circut Here is the circuit diagram of a 741 IC based 3 input mic mixer ckt. Altogether four 741 IC’s are used out of which IC1, IC2, and IC3 are used as pre-amplifiers. A 40 dB gain...
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