Back in the days of "JoeRatman" there were a series of radio controlled relay boards from China. I've just come by one complete but not completely mounted in a box. The board is 12 channel and identifies itself as RR1. Does anyone know whether these are 6, 9 or 12v operated please?
Did Joeratman ever publish his posts on a www of his own? Can anyone give me a link please?