How to Make 30 LED VU Meter Circuit using 10 S8050 transistors, with adjustment
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➤ Parts Required:
• C8050 transistors x 10 pcs
• Resistor: 220 ohm x 10 pcs
• Capacitor: 100uf/50v x 2 pcs
• 10k potentiometer.
• Diode 4148 x 12 pcs
• Battery: 4V2
• Led 5mm x 30 pcs