Audio Mixer With 3 Chanel Transistor

Saturday, September 24th 2011. | Audio Processor

3 channel audio mixer is built using some of the transistor amplifier. 3 channel audio mixer circuit uses voltage 9VDC summber which can supplied from a battery. 3 channel audio mixer circuit is designed special for the purposes of this Public Amplifier. Because the audio circuit of this mixer is designed specifically for the purpose of a portable mixer for audio public then this series has only a volume control without the tone control. Image series that looks dibawh audio mixer is a series of mono, if you want to make a 3 channel stereo audio mixer it is necessary to make 2 pieces of a series of three channel audio mixer terebut. For more details, a series of three channel audio mixer Dapa seen in the picture below.

The series of three Chanel Audio Mixer With Transistor

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Part List Audio Mixer With 3 Chanel Transistor

  • P1,P2,P3 = 5K
  • R1,R11,R15 = 180K
  • R2,R12,R16 = 2M2
  • R3,R13,R17 = 750R
  • R4,R14,R18 = 1K
  • R5 = 15K
  • R6 = 220R
  • R7 = 1.5K
  • R8 = 820R
  • R9 = 150R
  • R10 = 100K
  • C1,C6,C8 = 1µF-63V
  • C2,C4,C7,C9 = 100µF-25V
  • C3,C5 = 220µF-25V
  • Q1,Q4,Q5 = BC550C
  • Q2 = BC547
  • Q3 = BC557
  • J1,J2,J3 = 3mm Mono sockets
  • SW1,2,3,4 = SPST Toggle

In a series of three channel audio mixer is equipped with a switch on each chanelnya which select the input impedance, when the switch SW1, SW2 and SW3 in the open then the input should come from the output signal with a high level such as VCD, MP3 player, tape, computer and tuner . And at SW1, SW2 and SW3 closed position, the input should come from a weak audio signals such as microphones.

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