Supply voltage: 9 to 12V DC / 100mA
Includes 9V battery snap
Includes built-in electret microphone
Includes volume control
This circuit is a mini amplifier incorporating a sensitive PC board mounted electret microphone. It is designed around the popular LM386 amplifier Integrated Circuit. It can be connected directly to a small speaker or headphone, or you can connect it to an audio power amplifier such as the CK003 or CK193 for more output power.
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