audio mixer | Electronic Schematic Diagram https://electronicscheme.net Schematic Diagram & PCB Design Sun, 22 Mar 2015 14:15:57 +0000 en-US hourly 1 https://i0.wp.com/electronicscheme.net/wp-content/uploads/2017/05/cropped-transparent_text_effect.png?fit=32%2C32&ssl=1 audio mixer | Electronic Schematic Diagram https://electronicscheme.net 32 32 129969089 Simple 3 Channels Mini Audio Mixer https://electronicscheme.net/simple-3-channels-mini-mixer/?utm_source=rss&utm_medium=rss&utm_campaign=simple-3-channels-mini-mixer https://electronicscheme.net/simple-3-channels-mini-mixer/#respond Sun, 22 Mar 2015 14:15:57 +0000 http://electronicscheme.net/?p=114 This is the simple and low cost 3 channels mini audio mixer circuit diagram. This circuit supplied using 9V power supply. There are high/low-sensitivity switchable […]

The post Simple 3 Channels Mini Audio Mixer first appeared on Electronic Schematic Diagram.]]> Simple 3 Channels Mini Mixer circuit diagram

This is the simple and low cost 3 channels mini audio mixer circuit diagram. This circuit supplied using 9V power supply. There are high/low-sensitivity switchable inputs for each input channel and each channel used low noise and high gain transistor of BC550C.

Components list:

P1,P2,P3_________5K Linear Potentiometers

R1,R11,R15_____180K 1/4W Resistors
R2,R12,R16_______2M2 1/4W Resistors
R3,R13,R17_____750R 1/4W Resistors (See Notes)
R4,R14,R18_______1K 1/4W Resistors
R5______________15K 1/4W Resistor
R6_____________220R 1/4W Resistor
R7_______________1K5 1/4W Resistor
R8_____________820R 1/4W Resistor
R9_____________150R 1/4W Resistor
R10____________100K 1/4W Resistor

C1,C6,C8_________1uF 63V Polyester or Electrolytic Capacitors
C2,C4,C7,C9____100uF 25V Electrolytic Capacitors
C3,C5__________220uF 25V Electrolytic Capacitors

Q1,Q4,Q5______BC550C 45V 100mA Low noise High gain NPN Transistors
Q2____________BC547 45V 100mA General purpose NPN Transistor
Q3____________BC557 45V 100mA General purpose PNP Transistor

J1,J2,J3________3mm or 6mm Mono Jack sockets

SW1,2,3,4______SPST Toggle or Slider Switches

B1_______________9V PP3 Battery

Clip for PP3 Battery

The post Simple 3 Channels Mini Audio Mixer first appeared on Electronic Schematic Diagram.]]> https://electronicscheme.net/simple-3-channels-mini-mixer/feed/ 0 114 Audio Mixer + VU Meter https://electronicscheme.net/audio-mixer-vu-meter/?utm_source=rss&utm_medium=rss&utm_campaign=audio-mixer-vu-meter https://electronicscheme.net/audio-mixer-vu-meter/#comments Sun, 19 Sep 2010 04:05:43 +0000 http://electronicscheme.net/?p=540 This is an audio mixer circuit which designed along with VU meter circuit. The circuit is for one channel input, if you need, for example […]

The post Audio Mixer + VU Meter first appeared on Electronic Schematic Diagram.]]> This is an audio mixer circuit which designed along with VU meter circuit. The circuit is for one channel input, if you need, for example 5 channel mixer, then you need to build 5 similar circuits. The this audio mixer uses three potensiometers to adjust volume level, low frequency (bass) level and high frequency (treble) level. You may add echo chamber circuit for better voice output.

Schematic diagram:

Audio Mixer circuit diagram

Components list:

Audio Mixer Components

TR1,2 = FCS9015 ; TR3 = C1213 ; IC1,2 = 741 or TL071

This circuit need about 18 VDC power supply to work, use regulated power supply for better performance.

The kit of this circuit is available on the market, i took the picture from electronic store in my town. This circuit is absolutely works.

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