A/B/Y with 3PDT & DPDT

All frequent questions on switching: true or not true bypass, transistor-based or mechanical.

A/B/Y with 3PDT & DPDT

Postby Suede » 15 Mar 2013, 14:55

Hi,I'm trying to build a passive A/B/Y with 2 LEDs as indicators (only for A,B not a Y LED).
Is this possible using only a 3PDT and a DPDT?

I followed this schematic:

but it seems to be wrong.The way the A+B is wired sends one of them to the ground.The result is only one of the outputs is functional either on A/B mode or in stereo.
How could I rewire this layout to make it function properly?Thanks!
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