Article
5.1 Surround Switch Box
simple but extremely useful
Of necessity, today’s (surround) amplifiers have to come with lots of inputs and outputs. However, a problem occurs if you want to use several signal sources having an analogue 5.1 output: there’s only one compatible input available! The switch box described in this article solves the problem in a simple and elegant way.
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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PCB
Component list
Resistor:
R1 = 10?
Capacitor:
C1 = 100 µF 25V radial
Miscellaneous:
K1-K18 = cinch socket, chassis mount, gold-plated, 6.3mm threading
S1 = switch, 1 make contact
RE1,RE2,RE3 = 12V relay, 2 changeover contacts, e.g., Meisei M4-12H 960 ?/12 V (Conrad Electronics order code 505170) or equivalent.
PCB, ref. 054009-1 from ThePCBShop
R1 = 10?
Capacitor:
C1 = 100 µF 25V radial
Miscellaneous:
K1-K18 = cinch socket, chassis mount, gold-plated, 6.3mm threading
S1 = switch, 1 make contact
RE1,RE2,RE3 = 12V relay, 2 changeover contacts, e.g., Meisei M4-12H 960 ?/12 V (Conrad Electronics order code 505170) or equivalent.
PCB, ref. 054009-1 from ThePCBShop
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