Sound-to-light PLUS
Microprocessor-driven lights effects

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Materials
Gerber file
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.
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Component list
Resistors:
R1,R5,R11,R16,R20,R24,R26,R27 = 100k?
R2 = 22k?
R3,R7,R10,R22 = 10k?
R4 = 330k?
R6,R12 = 1M?
R8,R15,R19,R23,R25 = 47k?
R9,R14,R21,R34 = 1k?
R13 = 220k?
R17 = 470?
R18 = 1k?5
R28 = 10?
R29-R33 = 680?
P1 = 47k? linear potentiometer, mono
P2 = 22k? linear potentiometer, mono
Capacitors:
C1 = 1µF 63V radial
C2,C3,C7,C13,C14,C15 = 1µF MKT, lead pitch 5 or 7.5 mm
C4 = 68nF
C5 = 1µF5 MKT, lead pitch 5 or 7.5 mm
C6,C8,C18-C21,C23,C24,C27,C28 = 100nF
C9,C10 = 2µF2 MKT, lead pitch 5 or 7.5 mm
C11 = 470nF
C12 = 47nF
C16,C17 = 47pF
C22,C25,C26 = 4µF7 63V radial
C29,C30 = 1000µF 25V radial
Semiconductors:
D1-D4 = 1N4148
D5-D9 = red LED
D10 = high-efficiency LED, green
B1 = B80C1500 in rectangular case (80V piv, 1.5A peak)
T1-T4 = BC547B
T5 = BF256C
IC1 = LM324
IC2 = programmed PIC16F84-10/P (order code 000107-41)
IC3 = 7805
IC4 = 7812
IC5 = 7908
Miscellaneous:
K1 = PCB mount cinch socket (e.g., Monacor/Monarch type T-709G)
K2 = 14-way boxheader
K3 = 2-way PCB terminal block, lead pitch 7.5 mm
S1 = on/off switch, 1 contact
X1 = 4.096MHz quartz crystal
Tr1 = mains transformer 2x15V/8VA (e.g., Monacor/Monarch type VTR8215)
F1 = fuse, 100mA, time lag (T) with PCB mount holder
Lamp Driver Board
Resistors:
R1-R5 = 10k?
R6-R10 = 1k?
Capacitors:
C1,C3 = 100nF
C2 = 4µF7 63V radial
C4 = 1000µF 25V radial
Semiconductors:
D1-D20 = 1N5408
B1 = B80C1500 in rectangular case (80V piv, 1.5A peak)
IC1-IC5 = CNY65
IC6 = 7812
Miscellaneous:
K1-K6 = 2-way PCB terminal block, lead pitch 7.5 mm
K7 = 14-way boxheader
La1-La5 = 240-V light bulb with socket
Thr1-Thr5 = TIC106M
Tr1 = mains transformer 15V/4VA
(e.g., Monacor/Monarch VTR4115)
F1-F5 = fuse 1A, time lag (T) with PCB mount holder
F6 = fuse 100mA, time lag (T) with PCB mount holder
PCB, order code 000117-1
Disk
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