材料BOM表:
R1 = 10KR2 = 1MR3 = 1KR4 = 4.7KR5 = 10KR6 = 100RC1 = 100pF-63VC2 = 10µF-25VC3 = 100nF-63VD1 = 1N4148D2 = Red LEDP1 = SPST Pushbutton SwitchB1 = 3V Battery (2 x 1.5V AA, AAA Cells in series etc.)Q1 = BC550C-45V 100mA NPN TransistorQ2 = BC337-45V 800mA NPN TransistorQ3 = BC327-45V 800mA PNP TransistorMIC1 = Miniature electret microphone