Audio circuits

Audio

Audio amplifiers, preamplifiers, volume control and more...


16 Watt Amplifier
16 Watt Audio Amplifier uses two LM383 IC.
18-bit ADC uses PC's serial port
A PC usually requires a plug-in ADC card to process analog signals. However, with this circuitry, a PC can communicate with an 18-bit ADC through its serial port.
20 Watt Power Amplifier
Based on TDA2005M. Designed to be used as car Amplifier.
Audio Indicator
This circuit can be used to remotely monitor a loudspeaker, alarm, or audio source for presence of an audio waveform. It can also be directly connected across loudspeaker terminals used as a peak indicator.
Simple FM Radio with improved audio gain
Very simple FM Radio circuit using only one transistor.
Simple High Quality Preamplifier
Circuit of simple, high quality preamp. Has all the facilities normally expected.
The Reset Stabilized Amplifier
The reset stabilized amplifier is a form of chopper-stabilized amplifier.

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