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Audio Signal Source - Electronic circuit design (added 02/05) |
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Audio Voice-Over Circuit - (electronic design added 6/07) |
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Circuit to Connect Telephone Equipment to Audio Mixer - I have used this type of
circuits for quick testing of telephone equipment. This is a quick hack that does not
exactly resemble the characteristics of the real telephone network, but is enough for
this kind if applications. If you want better simulation, change the resistor to 600
ohm and increase the power supply voltage. And by the way ....(added 11/05) |
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Ever Amplifier Bridging - a design for a simple add-on bridging adapter for stereo
power amplifiers (added 4/02) |
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FET audio mixer (Aaron Cake) - This simple circuit mixes two or more channels into
one channel (eg. stereo into mono)
.(circuit added 7/02) |
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High Quality Sound Mixer - very ambitious and expected to be very expensive mixer
project, modular design (added 4/02) |
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Line Mixer - mix two line level sources to one-signal, includes separate volume
controls for both signals, passive circuit (added 4/02) |
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Line Mixer (Tomi Engdahl) - The circuit is an audio mixer circuit so simple as it
can be. There are two dual logarithmic potentiometers in the circuit to adjust the
input signal levels and some resistors to do the actual mixing. The circuit is totally
passive, so no power supply is needed. The circuit is suitable... (added 11/05) |
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Low cost circuit incorporates mixing & Amplifying functions - 07/10/08 EDN-Design
Ideas: Using an amplifier with a power-down disable, you can combine the mixer and the
amplifier functions.....(design idea added 09/08) |
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Microphone Mixer (Aaron Cake) - Designed for3-dynamic microphones (added 04/03/02) |
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Passive Audio Mixer - This idea came about in order to mix the output from a
guitar pickup with a crystal microphone for a harp ( harmonica ) feeding a single
mic input to a tube amplifier. The literature abounds with similar circuits none
of which seem to address the issue of the very high impedances involved. I have
experimentally worked out an approach which does the job. The over-riding assumption
is that your amplifier has plenty of gain....(added 10/09) |
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Portable Mixer - High-quality modular design 9V Battery powered Very Low current
drawing (added 9/04) |
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Simple Circuit to Connect Telephone Equipment to Audio Mixer - I have used this
type of circuits for quick testing of telephone equipment. This is a quick hack that
does not exactly resemble the characteristics of the real telephone network, but is
enough for this kind if applications. If you want better simulation, change the
resistor to 600 ohm and increase the power supply voltage. And by the way ....(added
11/05) |
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Simple Line Mixer - I designed this circuit for one friend of mine to be used as a
small portable DJ mixer. The circuit is an audio mixer circuit so simple as it can be.
There are two dual logarithmic potentiometers in the circuit to adjust the input
signal levels and some resistors to do the actual mixing. The circuit is totally
passive, so no power supply is needed. The circuit is suitable.... (added 11/05) |
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Six Channel Mixer & Amplifier - (electronic circuit added 7/03) |
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Stage & Recording Mixer - Able to be built in modular form, allowing as many (or
few) channels as desired. (electronic schematic added 6/07) |
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Stereo Mixer (Randy Linscott) - 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...(electronic schematic / circuit added 2/05) |
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Telephone Test Circuit with Audio Mixer - get Telephone audio to mixer or send
audio to Telephone (added 4/05) |
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Three Channel Audio Mixer -
.(design added 08/08) |
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Two Input Mixer - (electronic circuit added 1/03) |
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Two Line Output Combiner - Convert consumer equipment stereo signal to mono or
combine audio signal from two different equipments to1-input (added 4/02) |
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Voice-Over Circuit - This is a circuit where a microphone and preamp circuit
(voice circuit) have priority over any other audio signal. You can think of this as a
one way intercom, if the main amplifier is used for listening to music, then when the
push to talk switch is pressed, the amplifier is switched to the voice
signal....(added 06/07) |
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Voltage Controlled Mixer with Modulator - (electronic circuit added 7/03) |
