I am refurbishing a 18 element CP yagi. I am not sure of the manufacturer. I opened up the relay switching box and found a lot of moisture (Yes I live near Seattle) in the box. Lots of yuck and rust, on non stainless steel hardware.. The 12V connector is a simple phono plug, which should never be used outside. Before I reinvent the wheel has anyone been here before? Replace the phono plug, sealing everything. In the past I have used a material called 3M5200, a marine sealant, nasty but almost permanent. Suggestions please.
73 Bob W7LRD