Telescopic microphone how make it
Some common components using this circuit
1 Lm386 ic
2 Ceramic Capacitor 104
1 100 to 470 uf Capacitor polarize
1 Resistor 10k
1 headphone wire mic (any condenser mic)
3.7v battery
1 Aux jack
Some other materials (things)
19mm pvc wiring pipe 10 inc
Recycled botol
Kitchen Bowl
This is the circuit diagram
LM386 IC is a popular low voltage power amplifier used mostly in consumer applications including: AM-FM Radio Amplifiers, line drivers, small servo drivers, power converters, TV sound systems and more. The LM386 IC operates from 4V to 15V, has a good adjustable gain value from 20 to 200 with the use of external resistors and capacitors. It can well drive loads from 4W to 32W . This IC is easy to use and integrate in your audio amplifier circuits.
Features of LM386 Low Voltage Audio Op-Amp IC
Wide Supply Voltage Range: 4 V–12 V
Voltage Gains from 20 to 200
Low Quiescent Current Drain: 4 mA
Low Distortion: 0.2%
Low noise circuitry
External circuitry only consists of small components
Quiescent power is only 24mW on a 6V supply
Easy to use
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