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Amplifier Audio Circuits
CMoy Headphone amplifier circuit
BY
Toni
Cmoy Audio Amplifier Circuit for Headphones with Printed Circuit Board. Cmoy is a small headphone amplifier circuit, the original design ...
Preamplifier Audio Circuits
Diy RIAA Phono Preamp circuit with opamp
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Toni
Diy RIAA Phono Preamp circuit with opamp It’s a phono preamp based on the design of rod ellion (sound-au.com) ituses ...
Circuits Audio Preamplifier
Circuit Preamplifier 2.1 stereo tone control + subwoofer
BY
Toni
Stereo preamplifier 2.1 , tone control + subwoofer, useful preamplifier circuit to be used in active boxes, combined with power ...
Hi Adam, You can connect a 12 or 18V DC source in the power connector, do not worry about polarity.