Electro Tech Turn Signal Control

[feynmanfan]

I installed one of these turn/brake signal controls a few years ago and it works great! I just tried to order another one for another car and found out the owner/founder, Greg, unfortunately passed away. It is not clear when or if I will be able to order another one. Is anyone aware of an alternative control or better yet willing to sell their spare?
for ref
http://www.turnswitch.com/Turnsignal.htm
thanks
steve in cincinnati