anyone know where to get zenner diodes only number on it is c9v1ph, it's for a martin fog machine but thought I'd ask here. They won't tell me the part number or the spec's only sell me a replacement board for 200.00. I need two of them but will order more if need be. I can cross it if I only use c9v1 but there are 3 different replacements and I have no idea how to tell which I need.
