- on Audio/Video/Photography
- Published in issue 7/2006 on page 0
Paraphase Tone Control
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-R4 = 10k
R5,R7 = 1k
R6 = 7k15
R8 = 6k?80
R9,R10,R11 = 8k2
R12,R13,R14 = 2k2
R15 = 1M
R16 = 100?
R17 = 100k
P1,P2 = 100k preset or chassis-mount control potentiometer, linear law
C1,C2,C3 = 47nF MKT, lead pitch 5mm
C4 = 68nF MKT, lead pitch 5mm
C5,C6,C7 = 10nF MKT, lead pitch 5mm
C8,C10,C11 = 100nF MKT, lead pitch 5mm
C9 = 2µF2 MKT, lead pitch 5mm or 7.5mm
IC1 = TL074
K1,K2 = line socket, PCB mount, e.g. T-709G (Monacor/Monarch)
PCB, ref. 060015-1 from The PCBShop