about 1 month ago - No comments
The simple mixer schematic is built on common base principle, where input voltages are transformed in alternative currents wich are summed to form the alternative current component for the collector. The total amplification is R6 / Ri, where Ri is one of the input resistors. I’ve build this mixer for a little transmitter and works More >
about 3 months ago - No comments
The simplest audio mixer circuit diagram on the net. It has only one transistor and can support as many audio signal as you can afford. BC109C is a very cheap transistor and with a few resistors and capacitors you can build quickly a mixer circuit diagram that you can use in your pirate radio or More >
about 3 months ago - No comments
This FET mixer is an example of FET’s versatility. FETs are originally designed for high frequency applications but they can be used for audio frequencies and in fact they perform excellently in this area.
This mixer needs only four FETs and performs very well (actually you cannot expect a high quality mixer).
The mixer’s input impedance is More >
about 4 months ago - No comments
The audio mixer schematic we propose is developed arround 4 amplifiers build inside SSM2024 produced by Precision Monolithics Inc. (PMI) and is voltage controlled (VR).
The maximum VR voltage is 5.5V. The signal/noise ratio is 90dB and 130Khz band wide. This 4 channels mixer works great at +- 15V but you can use voltages between 9V More >
about 1 year ago - 3 comments
This audio mixer circuit uses an LM3900 IC but is not a profesional audio dj mixer. The IC houses four integrated Norton amplifiers. The advantage of using the four op amps is that they only need a single power supply. Since this amplifier circuit is current controlled, the DC bias is dependent on the feedback More >
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