60-dB LED VU Meter
Materials
Gerber file
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Extra info / Update
Component list
R1 = 2kOhm 7 (see text)
R2 = 10kOhm
R3 = 680Ohm
R4 = 22kOhm
R5 = 820Ohm
R6 = 2kOhm 2
R7 = 22Ohm
P1 = 100Ohm
Capacitors:
C1 = 1µ F 63V (MKS, MKC)
C2,C6 = 10µ F 16V radial
C4 = 2nF2 (see text)
C3,C7,C9 = 100nF
C5 = 22nF
Semiconductors:
IC1, IC2 = LM3915N
IC3 = LM7805
D1-D20 = LED
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