I would like to install a Master Avionics switch in my Cherokee. I know that some of the Pipers used a mormally closed relay operated by a switch to turn the power on and off, resulting in a failsafe arrangement that if the switch failed the realy would continue to power the instruments and radios. I do not know what models used this arrangement. Does anyone have info on this such as a schematic, part numbers of the relay etc. I like this setup instead of trying to find a high currennt switch or using a switch breaker. Any help would be apreciated.
Randy
Randy