November 2014 update:
All of the switches - some 70, are controlled by slide switches (DPDT) to switch the frog polarity and to control accessories like signal which I will install later. Fifty four of the switches are controlled by Tam Valley Frog Juicers. I plan to buy another "Hex Juicer" to bring the total controlled by these excellent electronic switches to 60.
I am also planning operations and nearly ready for some operations, albeit in a simple form and on a non sceniced layout.