Solenoid Based Shutoff Switch

I created this simple device as part of my larger Minivac 601 Replica project. The Minivac 601 was an electro-mechanical computer from 1961 (see the [Wikipedia](https://en.wikipedia.org/wiki/Minivac_601) entry for details). This Thing is also related to my [Mostly 3D Printed Rotary Switch](https://www.thingiverse.com/thing:3524065).

The Minivac 601 has a sixteen position rotary switch that was used for manual input and as an output device. You can see what the panel containing the switch looks like in the photo below. To accomplish the output function, the rotary switch was motor driven (something that I am working on right now with my replica). The motor is RUN by applying power through the eyelets labeled 17 and 18 using patch wires to create the circuit. The polarity of the wires determined which direction the rotor would turn.

There was also the ability to STOP the motor by creating a circuit between eyelets 18 an 19. On the original Minivac this was done by "shorting out" th