simple transistor amplifier circuit

simple transistor amplifier circuit

Amplifier is a series of electronics used to amplify the audio so that the results of audio can be heard through the loud speaker. This article will discuss how to create a simple amplifier where only few components are needed to make a simple amplifier circuit as in the schematic

actually the article about the amplifier already admin share in the previous article only in the article there is no circuit scheme

If you have not read it please read on amplifier working principle

if you want to make a simple transistor amplifier circuit you can follow the simple amplifier circuit scheme in this article

how to make simple transistor amplifier circuit?

The following amplifier circuit uses 4 transistors in which the resulting reinforcement is sufficient

The voltage required to make the circuit operate is 5V-12V DC

If you make your own power supply you can use transformer 1A, 2A or 3A. Read the article on making simple adapter circuit

for loud speaker you can use loud speaker 6 inc or 8 inc

the circuit scheme is as follows

transistor amplifier circuit

components needed to make a simple amplifier

The list of Components needed to create a simple amplifier is as follows

  • R1 …………. 2M2
  • R2 …………. 820K
  • R3 …………. 22K
  • R4 …………. 1K
  • R5 …………. 470R
  • R6 …………. 2R2 /2W
  • R7 …………. 2R2 /2W
  • VR …………. 50K
  • C1 …………. 470nF
  • C2 …………. 10uF/16V
  • C3 …………. 100uF/16V
  • TR1 ……….. A733
  • TR2 ……….. C945
  • TR3 ……….. TIP 31/41
  • TR4 ……….. TIP 42/42
  • D1 …………. 1N4002
  • D2 …………. 1N4002

how simple amplifier circuit works

how simple amplifier circuit works above is as follows

the audio input will enter through the potentiometer. The potentiometer function is to adjust the audio volume

after going through potentiometer then audio signal will enter through TR1 and will be reinforced by TR1. Next will be strengthened also by TR2, TR3, and TR4

TR3 and TR4 will work interchangeably. When TR3 on then TR4 will be off so vice versa when TR3 off then TR4 will on

the result of the output will produce AC voltage which will then go into the loud speaker

so article on how to make a simple transistor amplifier circuit please read my article also about making a simple tone control

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