- on Audio/Video/Photography
- Published in issue 7/2003 on page 0
Car-Stereo LED Power (VU) Meter
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.
R1,R5 = 22k?
R2,R6 = 10k?
R3,R7 = 820?
R4,R8 = 470?
C1-C4 = 470nF, lead pitch 5mm
C5,C6,C7 = 10µF 63V radial
D1 = 1N4001
D2-D21 = LED, 3mm dia. or rectangular-face
IC1,IC2 = LM3915N-1 (National Semiconductor)
IC3 = 7805
Heatsink for IC3 (10 K/W)