I saw daddywoofdog left a link in the electric chair and I was going
through it and found some cheap relays. If you have found cheaper
please feel free to post the link.
I just ordered in 500 pcs 12vdc to 110/240vac/28vdc and they should arrive in about 2 weeks. Very nice compact mechanical SPST NO .
Price should be about .75 each, with better pricing in multiples.