Audio mixer circuit: This is an audio mixer circuit for the amplifier. Sometimes we need many inputs in an amplifier. then we can use this type of diagram to control all input. here, there is no need for any voltage. Equalizer Here have 6 input and 1 output socket. this …

Equalizer circuit diagram 7band: This is an Equalizer circuit diagram 7band. this board is for mono audio. if need a stereo then have to use a two-circuit. here no need for any voltage because it’s a passive circuit. every amplifier needs a good-quality graphic.  All voll will be 100k and …

Amplifier circuit diagram using Mosfet: This is an amplifier circuit diagram using MOSFET. here used Irf9530 and Irf930. Irf9530 is a positive mosfet and Irf930 is a negative mosfet. this circuit can make 200 watts maximum. here used 50-0-50 voltage and 5 amperes.  this is a mono board. if we …

Low Mid and High Circuit Diagram: This is a Low Mid and High control circuit board. this diagram is so easy and simple. it’s a mono-circuit diagram. it’s without a pre-amplifier circuit. this circuit does not need power because it’s without a pre-amplifier. it can control low frequency, high frequency, …

Password Switch: This is a security system for any electric goods. like light, motor, fan. sometimes we need a password for the light or motor. for this situation, we can use this type of switchboard. like used 10 switches 5 will be on and another 5 will be off. then …

Turbo Bass Circuit: This is the Turbo Bass Circuit diagram. this circuit makes the extra bass. This is also a pre-amplifier. we need this type of board for the subwoofer. low-pass filter also for subwoofer but this circuit is different board. this circuit works with 2.0 stereo sound but the …

100 watts amplifier circuit: This is a 100-watt amplifier circuit diagram using TDA7294. this is one of the popular diagrams. we can get 100 watts from this board. here we can use 15-0-15 voltage to 45-0-45 voltage. we will get the watts according to the using voltage. this is a …

How to make running light: This is a running light circuit diagram. it’s a simple diagram. this circuit runs with 5 voltages only. it has 5 LED lights. Ne555 is very widely used in many electronic projects, like using timers and also as well as LED control circuits. like this …

Mid-low high circuit diagram: This is the Mid-low high circuit diagram. this is one of the best single-voltage pre-amplifiers. here used 9 voltage. this is a mono board. if we need stereo then we have to use dual board for the dual side.  Component list: P1=0.022, P2=0.022, P3=100pf, P4=0.1, P5=0.01, …

Amplifier circuit using stk4141: This is an amplifier circuit using stk . in this diagram, we can use stk4141 to stk4191. this diagram can make 50+50 watts using 4191. we can use 25-0-25 voltage to 50-0-50 voltage according to the Ic, here, we need dual voltage: positive ground and negative …