Yes, I meant DPDT. My brain isn't firing on all cylinders today.

 

Ahh, I think I'm finally getting what you're talking about.

Sort of like the old power switches for computers; those were push on, push off - but if they were SPDT instead of SPST, that would work.

The push-on/push-off would be ideal...but...from my experience (one failed today)...their MTBFs, if used a lot, are pretty low. Had to dump two high end (but old) Fluke DMMs because of bad "radio button" swiches. A good mechanical setup with your DPDT toggle and 180º cam looks the best for a non-electrical OP.

Ken