BN9 PARTS LIST
❒2 .01µF ceramic disk capacitors (C1, C2)
❒3 4.7µF or 10µF electrolytic capacitors (C3,C4,C6)
❒1 100µF to 500µF electrolytic capacitor (C5)
❒1 220K ohm resistor (red-red-yellow) (R1)
❒1 10K ohm resistor (brown-black-orange) (R2)
❒1 NPN transistor, 2N3904 (Q1)
❒1 LM380 audio amplifier IC (U1)
Microphone (not included)
+8 to 15VDc gnd
speaker (not included)
