I just started to use the opto-tron, as it is much easier to find a good DPDT than a 3PDT of equal quality. Josh's boards are top quality, really convenient, and the optocouplers are not that expensive when you buy 10+ of them.
Also, I'm working on making my own small footprint, soft-touch 3PDT switches to use in my 1590A builds, they still need a bit of testing but I'm nearly done.
Also, I'm working on making my own small footprint, soft-touch 3PDT switches to use in my 1590A builds, they still need a bit of testing but I'm nearly done.