hình 3
PARTS LIST:
18 - 330R resistors
2 - 470R
1 - 1k
1 - 2k2
5 - 4k7
5 - 10k
2 - 22k
2 - 33k
4 - 39k
4 - 47k
4 - 4.7mfd 16v PC electrolytic
2 - 22mfd 16v PC
20 - BC 547 transistors
2 - BC 557 transistors
18 - 1N 914 or 1N 4148 diodes
14 - 5mm red LEDs
4 - 5mm green LEDs
2 - 100k mini trim pots
1 - 9v battery snap
1 - speaker 8 ohm
1 - board
Nguồn :gt4vn.net
