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5 LED Sound Level Meter | All About Circuits

5 LED Sound Level Meter | All About Circuits

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Analog VU meter circuit using transistors
Sound Level Meter Circuit

Sound Level Meter Circuit

LED Volt Meter | Xtreme Circuits

LED Volt Meter | Xtreme Circuits

YO3HJV: LED Voltmeter (for portable QRP ops)

YO3HJV: LED Voltmeter (for portable QRP ops)

Very Simple Light Meter | Simple Circuit Diagram

Very Simple Light Meter | Simple Circuit Diagram

Amateur-built.: LED Vu meter circuit (LM3914)

Amateur-built.: LED Vu meter circuit (LM3914)

10 LED Sound Level Meter - Electronic Schematic Diagram

10 LED Sound Level Meter - Electronic Schematic Diagram