RANGKAIAN Mic Pre-amp PORTABLEMic Pre-amp PORTABLE scheme|rangkaian circuit consume low current supply (about 2mA), so will have a long battery life for supplying the circuit. The circuit built based on a low noise, high gain two stage PNP and NPN transistor amplifier, using DC negative feedback through R6 to stabilize the working conditions quite precisely.
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RANGKAIAN Mic Pre-amp
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