How to make crossover for tweeter: This circuit is most important in the audio. every soundbox needs this circuit to protect the speaker and tweeter. without using crossover the tweeter can’t use. the speaker needs bass but the tweeter can’t take bass. without this circuit also can use a tweeter …

How to make ac to dc voltage: This is a simple article on. this circuit diagram is for making ac to dc voltage. this is a dual voltage circuit diagram for making positive negative and ground. this circuit needs to make an amplifier.  here used 4 diodes of 5400 and …

How to make a running led lamp with IC 555: This is a led running led lamp using 555 ic. it needs only 5 voltage. This circuit only uses 5 LED diodes and uses 5 resistors and also 1 IC 555. we can use a power supply from an adapter …

Simple Inverter circuit diagram: This is a simple inverter circuit diagram. here we use a 12-0-12 voltage 3-amp transformer. this inverter can make a maximum of 30 watts. here used tip 41c transistor. two transistors for 2 sides. we need one center tap transformer to make this inverter.  This circuit …

12 voltage amplifier using transistor TIP41 and TIP42 This is a mini amplifier circuit diagram. this circuit run from 10 voltage to 18 voltage. normally we can use 12 voltages. we can use 12 voltage battery also. here used 2 transistors only. tip41 is an NPN transistor and Tip42 is …

how to make C5198 and A1941 transistor amplifier : C5198 and A1941 transistor amplifier circuit diagram. here used 2 transistors. it’s a mini amplifier circuit. we can use a maximum of 24-0-24 voltage and 3 amperes for this circuit. C5198 is an NPN transistor. and A1941 is a PNP transistor. …

how to connect volume:  This is an introductory post for connecting the volume connection when we are going to connect 6 pin variable to an amplifier. normally we use 3+3 pin volume for any amplifier. this is a stereo-variable resistor.  It is the 6 pin volume control wiring Here we …

2n3055 transistor amplifier: This is a 2n3055 transistor amplifier. this transistor amplifier can run using a single voltage. this amplifier can use 12 voltage to 50 voltage. here used 2 transistors. 2n3055 is an NPN transistor.  we can make this amplifier using the battery. normally transistor amplifiers need dual voltage. …

This is 200 watts amplifier circuit diagram: This is a 200 watts amplifier circuit diagram. here in this diagram, we can use 2n3055 and mj2955. 2n3055 is an NPN-positive transistor. and mj2955 is a PNP negative transistor.  2 transistors can make 100 watts. here used 4 transistors. so, it’s 200 …

Music level light for amplifier: This is Music level light for amplifier. here used LM2915 ic. using only 12 voltages. It’s an easy circuit diagram. we can use this music level on our amplifier. here used 10 led light. only used 2 pieces capacitor 22uf 16 voltage. 220 ohms 1/4 …