Timer circuit diagram: This is a timer circuit diagram. this circuit can control using this adjustable variable. we can make this circuit as we want. we can make the time as we want. we can adjust 0.5 seconds to 12 hours. this circuit’s input voltage is 12 and the output …

Voltage booster circuit: This is a Voltage booster circuit diagram. here use only one Ic Ne555. we will get double voltage but the amperes will be half. like if we use 6 voltage and 2 amperes then we will get 12 voltage and 1 amperes.  This circuit can use in …

Homemade battery: This is a homemade battery. this is the system for making a battery. here we can use soda or salt or Sulfuric acid. every glass will make 0.6 volts like that. we need one copper sheet and one aluminum sheet. copper will make the positive charge and aluminum …

Graphic equalizer circuit diagram: This is a 5 band audio equalizer. this circuit is used in an amplifier. normally any amplifier needs a pre-amplifier to control the sound quality. this circuit has audio input and audio output. here need 12 voltages to run this circuit. Graphic equalizer circuit diagram.   …

Easy amplifier circuit diagram using A1941 and C5198: This is an amplifier circuit diagram. here used 2 transistors for one side. left side for 2 transistors. and 2 transistors for the right side. A1941 is a negative transistor PNP. and C5198 is a Positive transistor NPN. we also can use …

5-band graphic equalizer: This is for the audio amplifier circuit diagram. this circuit is used as a pre-amplifier to an amplifier. this circuit makes the sound clear and melodious. we can make the sound we want to hear. like, we can control the low part. we can control the high …

High control circuit diagram: This is an audio High control circuit diagram. this circuit can control our amplifier sound. this circuit is used as a pre-amplifier. high is for the tweeter and also call tone. here used 4558 ic. needs dual voltage for this pre-amplifier.12-0-12 voltage. positive, negative, and ground …

How to make dc voltage: This is a circuit diagram for making voltage. this circuit is for dual volts. here used a full wave transformer. this transformer is ac 35-0-35 voltage. this ac voltage makes dc using 4 diodes and 2 capacitors. usually, this circuit needs an amplifier—positive- negative, and …

How to make music light for the amplifier: this is the Music light for the amplifier. we need this circuit for our amplifier. it makes the amplifier gorgeous. It’s the display only. also, it’s called the sound level. here used a transistor only. one transistor for one led. here have …

How to make stereo amplifier : This is a 2.0 amplifier circuit diagram. this is a bridge mode circuit. this circuit is based on STA540. this IC has 4 inputs and 4 outputs. but here it’s made in bridge mode. now it’s a stereo circuit. Right and Left speakers. this …