Electronic – Need help with the initial attempt at a headphone jack switcher

circuit-design

I'm attempting a little project where I can have three 3.5mm jack inputs, then a switch to direct to a single 3.5mm headphone output.

Based on a simmilar Instructables page but attempting to adapt it for three inputs rather than two.
Here's the highly detailed diagram from that page:
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Coming across this diagram for a three position switch, I thought I had a plan:
DP3T Slide switch

So I've attached all the components and given it a test
enter image description here

But it has become apparent that it works a little more like this:

enter image description here

I'm now coming across diagrams like this one in the bottom right, talking about external jumpers between the pins?
enter image description here

Am I just using the wrong kind of switch, or do I need to re-jig my wiring and add some jumpers in?

Any guidance would be most appreciated.

Thanks.

Best Answer

You have got the right switch terminal diagram but the wrong switch!

Here's a photograph of the correct switch. Note the pin spacing.

enter image description here

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You would need to wire the L & R terminals of the output socket to A0 & B0 terminals of the switch.

Like wise with the L & R terminals of the input sockets to A1 & B1, A2 & B2 and A3 & B3 terminals of the switch.

The common terminals of the four sockets are to be interconnected.

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