Simple 150 Watt amplifier circuit using transistors

This is the cheapest 150 Watt amplifier circuit you can make,I think.Based on two Darlington power transistors TIP 142 and TIP 147 ,this circuit can deliver a blasting 150 W Rms to a 4 Ohm speaker.Enough for you to get rocked?;then try out this.

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Simple audio amplifier using LM386.

The LM386 is an audio amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200.

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Audio Amplifier - 2N3055 MJ2955

Here is A amplifier with 2n3055 transistors on its output for those of you that are looking at doing a bang for buck amplifier with all those 2n3055 lieing around that as most electronics guys think when they look in there old box there must be something I can do with this stuff.

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