Yep, the airhose goes to another pneumatic solenoid valve hidden within the frame, and the 3 way shaft becomes an air-forward, spring return ram to trip the 3 way itself.
With that in mind you could potentially just throw a normal cocker solenoid in your 3-way slot and wire it to the pins the second solenoid goes, then have a normal e-frame.
Originally Posted by Jordan
Love how the thread got de-railed to incestuous relations and soldering brass tubes together. Classic MCB at it's finest.
Originally Posted by HP_Lovecraft
I'm no hippie, but I do lack any sense of style.