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                                     VU Meter 4               by Nazmi EKER

VU_Meter_4.gif (17469 bytes)

England_2.gif (1545 bytes)The circuit is placed parallel with the exit of power amplifier and us gives the level of signal ,from output. Changing resistance R1, in the entry of circuit, we adapt the indication of power, in the resistance of loudspeaker, that we use.

R1=> 10K for 4Ω R3=> 390Ω D1-10=> LED
R1=> 18Κ for 8Ω R4=> 2.7KΩ S1=> mini switch
R2=>10KΩ C1=> 2.2μF 25V IC1=> LM 3915

Sam Electronic Circuits 8/01

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