The dorky video that started it all!  I’m still amazed that this has over 70,000 views!

Here are some other things from my website (which is no longer owned by me):

Convert normally closed pedals to normally open. (PDF)
This how-to document shows how to change organ pedals that are wired in the normally closed position to the normally open position. By Howard Cano

13 note organ pedal worksheet (PDF)
This worksheet enables you to keep track of your which wires go to which pedal when you are converting or wiring a set of 13-note organ pedals.

In the video below, I show how to test your Hammond or similar organ pedals to see which wires go to which pedals.