I was thinking that we could use two pins, one pin set up to a transistor with motor polarity going one way and the other pin set to another transistor with the motor polarity going the other way. For these actuators, http://www.ebay.ca/itm/271555391890 . The question I am having is do I need diodes or something to prevent reverse emf going somewhere it shouldn't? Yeah, I could go out of town a little or order the relays on Ebay, but I have some transistors and diodes already.
Thanks for being here and reading ths. Ron L.