Friday, March 25, 2016

homemade selector switch.

 Building a tapped coil selector switch. I cut a thin slice from the end of a 3" x 3" block and laid out the taps every 30 degrees. I pushed a sequel pin through at each point. drilled the center tap to hold the armature and coil. Rolled a hook in the pin to solder the wires to.
This is the back side with the coil mounted. I ran a wire from the bottom of the armature for one side of the circuit. It is basically the same as the tapped toroidal coil I posted earlier.

note: The flat metal piece is a spring. Attaching a flattened #16 copper wire under it provides the contact. The spring will work but adding the copper makes a better job of it.

another switch here:

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