fyp_week 2 : The circuit diagram

this is the circuit diagram. we use to build final year project. 

the components are :

- LM386 Low Voltage Audio Power Amplifier

- MPF102 Transistor

- 1K Ohm 1/4-Watt Carbon Film Resistor

- 1M Ohm 1/4-Watt Carbon Film Resistor

- 10 Ohm 1/4W 5%  Carbon Film Resistor

- 4.7K Ohm 1/4-Watt Carbon Film Resistor

- (x2) 0.047µF 50V Capacitor

- 220µF 35V 20% Radial-lead Electrolytic capacitor

- 100µF 35V 20% Radial-lead Electrolytic capacitor\

- 0.1µF 50V Hi-Q Ceramic Disc Capacitor

- 10K Ohm Linear-Taper Potentionmeter

- 1/8” Mono Panel-Mount Audio Jack

- Earphone/Headphone

- 9V Battery Snap Connectors

- 9 Volt Battery

- 90dB Piezo Pulse

function the component:

 LM386 Low Voltage Audio Power Amplifier
~The Contek LM386 is a power amplifier, designed for
use in low voltage consumer applications. The gain is
internally set to 20 keep the external part count low,
but the additional of external resistor and capacitor
between pin 1 and pin 8 will increase the gain to any
value up to 200.

 

MPF102 Transistor
 ~This device is designed for electronic switching applications such as
low ON resistance analog switching.
~ Sourced from process 50