Audio Mixer Ic | Electronic Project Circuits

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Easy Audio Mixer by LM837

The mixer itself is a fixed-gain summing amplifier based on an LM837. It sums up all the six microphone preamp signals into a single output. This is called the MIX OUT, and is a rear-panel socket. The single output is split into two outputs, to allow easy connection to external stereo equipment. The idea behind this is to allow connection of an external effects unit or graphic equalizer between the mixed output and the power amplifier.

Source:http://wiredworld.tripod.com/tronics/mixer.html
Thank you.

Be the first to comment - What do you think? Posted by admin - February 11, 2008 at 2:31 pm

Categories: Audio diagram Tags: audio mixer, audio mixer ic

Audio Mixer by IC LF353

Audio Mixer by IC LF353

This is a very simple 4-channel audio mixer. We used a number IC of LF353 is the main equipment, the function of each channel combined with upper signal level. They is low noise for J-fet op-amp IC (NO. View to LF353)

Be the first to comment - What do you think? Posted by admin - June 20, 2007 at 3:55 pm

Categories: Basic electronics Tags: audio mixer ic, LF353, Simple audio mixer schematic

Stereo Mixer

With this circuit you can mix four separate audio inputs. Each input will accept high or low impedance microphones, phonograph, tape or aux signals. You can adjust the gain of each input by adjusting each respective pot. With the Stereo/Mono switch you can combine just inputs 1,2 and 3,4 or in the Mono position combine all four inputs. Signal response is 20 Hz. to 20kHz. with very high input impedance and very low distortion with complete output short circuit protection. This circuit will drive any power amp with an input impedance of 2,000 ohms.
And you can read more about LF353 here.
From : http://home.maine.rr.com/randylinscott/may20.htm