Mono Preamp (or stereo), based on an LM387 for dynamic microphone. The preamplifier described here is designed to connect a […]
Amplifier Circuit Design
Non-Inverting Amplifier Using Split Supply
Non-inverting amplifier uses a dual audio power amplifier LM1877 type. This IC can deliver output power of 2 W per […]
Low Voltage Bridge Audio Amplifier
Low voltage bridge audio amplifier based on op amp IC LM386 (Low Voltage Audio Power Amplifier). Application of this circuit […]
Small Electret Microphone Pre-amplifier
The mic pre amp described here is designed to connect a small electret microphone and uses an integrated circuit type […]
Preamp for Speakers as a Microphone 2
The previous Preamp for the speakers as a microphone installation is indeed simple, but has virtually no gain. It is quite possible to add a second transistor to fill the gap, as […]
Preamp for Speaker as a Microphone
This Microphone Preamp circuit shows that it is possible to use the speaker as a microphone, and is specifically designed […]
Mono Preamp Based on NE5534
This achievement shows that it is possible to create a balanced dynamic microphone preamp, it is relatively simple. This preamp […]
Mono Preamplifier based on SSM2017 and SSM2142
This circuit is a mono preamp for use with a dynamic microphone or electrostatic. It has a phantom power and […]
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