400 Watts stereo power amplifier uses power transistor to work.

Stereo Power Amplifier

400 Watts  stereo power amplifier uses power transistor to work. This amplifier in addition to providing good sound power, also with excellent quality and a high fidelity with low noise, to obtain the 400 watts we can put 2 speakers of 4 Ohms or 4 of 8 Ohms.

400 Watts stereo power amplifier uses power transistor to work.

Stereo Power Amplifier Materials.

Transistor

  • D1047
  • B817E
  • A1015
  • TIP41C
  • TIP42C

Resistors:

  • 6.8 ohms – 1W (blue, gray, gold)
  • 100 ohms – 1W (brown, black, brown)
  • 18K – 1 / 2W (brown, gray, orange)
  • 1K – 1 / 2W (black brown, red)
  • 10 ohms – 1W (brown, black, black)
  • 270 ohms – 1 / 2W (red, violet, brown)
  • 10K – 1 / 2W (brown, black, orange)
  • 330 ohms – 1 / 2W (orange, orange, brown)
  • 56 ohms – 1 / 2W (green, black)
  • 27 ohms – 1W (red, violet, black)
  • 820 ohms – 1 / 2W (gray, red, brown)
  • 0.47 ohms – 5W

Capacitors:

  • 0.1uF/100v
  • 47uF/63v
  • 2.2uF/100v
  • 330pF (ceramic)

Diode 

  • 1N4004

Inductor 5uH 

Power Supply

6800uF/ 63V of capacitor. 
10A01 Diode
7 amp 33x33v transformer

Power Supply for 400W  Stereo Power Amplifier

The power supply circuit is simple; you may use 10A transformer and 6800uf of capacitor. The diode value refers to the current value from transformer and it should be have higher value. For example if you use 7A transformer, then use 10A diodes.

Input Connection with Volume Control

The input connection for 400W  stereo power amplifier with volume control using a stereo potentiometer.



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