If anyone wants to build a Membership Card "on the cheap", Marlin P.
Jones Associates www.mpja.com has the front panel toggle switches for 25
cents each. Their part# is 18275 SW. That's 1/6th of the price I pay for
them! You can order a bare board for $19, and populate it yourself to
However, there's a catch. The switches I supply are on/on (no center
position) and have PCB terminals. The MPJA switches are on/off/on
(center off), and have solder lug terminals for wires. So you'd have to
mount the switches to a front panel, and use little pieces of wire to
connect them to the PC board. I also suspect the MPJA switches are cheap
ones from China (caveat emptor).
Failure is only the opportunity to begin again more intelligently.
-- Henry Ford
Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm