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  • relay input board for audio.

Based on a similar project [fn:1]

bom

relays

HK19Fhttp://www.aliexpress.com/item/High-Quality-10-x-DC-5V-Coil-125V-1A-DC-30V-2A-AC-2A-30V-DC/32263891251.html
RY12W-Khttp://www.aliexpress.com/item/20-pcs-lot-TAKAMISAWA-RY12W-K-12V-DPDT-Signal-Relay-For-Audio/32474400291.html?spm=2114.031010208.3.20.ds0aQE&ws_ab_test=searchweb201556_3,searchweb201644_1_79_78_77_82_80_62_81_61,searchweb201560_6

interconnects

search for 2.54-5P XH-5P XH-2P,XH-3P,XH-4P,XH-5P,etc http://www.aliexpress.com/item/XH-red-and-white-cable-3P-single-head-plug-the-other-end-of-the-housing-tinned/32372398975.html

mouser shared cart

http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=747d0c13f4

datasheets

ULN2003http://www.ti.com/lit/ds/symlink/uln2003a.pdf

images

./images/relay_switch.sch.png

./images/relay_switch-brd.png

./images/relay_switch_3d_1.png

./images/relay_switch_3d_2.png

./images/relay_switch_3d_3.png

./images/relay_switch_3d_4.png

Footnotes

[fn:1] http://www.diyaudio.com/forums/analog-line-level/254244-building-complete-preamp-arduino-remote-volume-input-control.html#post3882944

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audio input switch using relays

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