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Audio Switcher Box (1/8" stereo jacks)

Audio Switcher Box (1/8" stereo jacks)
I spent many hours searching the internet, looking to buy some sort of 1/8" jack audio switcher box, but to no avail.
So, I decided to make my own, and it was surprisingly easy.

For this project I used:
1 - 4x4x2 pvc junction box (from Lowes) - $6.38
6 - 1/8" stereo jacks (from RadioShack) - $3.99 per 2 pack
6 - DPST (Double Pole Single Throw) toggle switches (from www.electronix.com) - $10.35 for 15*
!! - 22 gauge stranded wire - (from RadioShack) - $6.59 per 3 pack - red, green, black**

Note: * - You have to order atleast $10 worth of merchandize from electonix.com for them to ship, hence I had to order 15 switches instead of the 6 that I needed, but still it was a better deal than at RadioShack and now I have 9 other switches for other projects.

Note: * - It looks like electronix.com isn't selling the switches I used at the time I wrote this (01-09-09) so I would just search the web for "DPST switch" and see what you can find. But, check electronix.com first because they seem to have great pricing.

Note: ** - 22 gauge wire is probably overkill for this project, but it works well and is easy to solder
 
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Step 1Wiring Diagram

Wiring Diagram
Below is the wiring diagram:

It's pretty straight forward.
I used a soldering iron for all the contacts.
Rosin core solder works very well for these types of projects.
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13 comments
Feb 27, 2012. 2:52 PMjackchi2012 says:
this is good
Jan 1, 2011. 4:40 PMbiggunner says:
hey you can get FREE switches at http://www.tycoelectronics.com/catalog/switches-knobs/menu/en/13873?BML=10576,16354
just click on request free sample, ive got lots of stuff from them.
Jan 8, 2010. 9:02 PMeli2k says:
Hey, thanks for the tutorial. You mention " If you flip more than one input ON, sound distortion will occur" but it won't overload the device receiving the audio, right?
Sep 6, 2009. 10:07 AMBlackice504 says:
this is a good idea and its neat just a thought add some 100ohm resistors so get even signal to devices some caps would stop any dc feed back in the event it happens. easy to add.
Aug 20, 2009. 9:32 PMTheNotoriosBOV says:
I've built something similar, but with only two inputs and two outputs, and using DPDT switches. I have all the grounds joined like yours, but for some reason the left channel on one input cut out, and then both inputs started failing. Would it be the soldering iron damaging the switches or the 3.5mm jacks from the heat?
Aug 2, 2009. 7:36 PMthor25 says:
Hi there. I think I need help. I built something similar, an RCA stereo component switcher. 3 in, 1 out. I used 6 (3 pair) dpst switches, one switch to each channel for the express purpose of cutting signal AND ground between components. My solution to a hum problem. When 1 component is on (1 pair of switches) they are the only grounds connected to the output jacks (1 connection to R and L) I don't know if I should have combined the outer connections on the 2 plugs. Result is loud noise with switches off and no components plugged in. I hope I was clear. Any ideas?
Jun 18, 2009. 4:47 PMshad0w88 says:
Wont the volume go down on a single output when two outputs are switched on at a time??
Jan 12, 2009. 12:26 AM486dx4 says:
very cool!!! i just so happen to be in the middle of making an audio switch box. Mine has a 1/8th and a 1/4th input and a pot to switch between them, a volume pot, and a switch to switch between just a headphone output and both headphone and speaker outputs. ill post an instructable in the next few days. im making it basically just so i can use my guitar and my computer through my stereo amp.
Jan 9, 2009. 7:31 PMsdallesasse says:
Very cool! I suppose you could do this with basic component video as well.
Jan 12, 2009. 12:20 AM486dx4 says:
i did =) and i posted an instructable

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Author:jeremiah_migas