These are the pce componets. But I don't know what side is positive or negative. It doesn't say on them. I have one face straight down with a sticker on the back saying "PWE 160". Would anyone know? These are the same exact ones from him.
take a set of wires and connect to the terminals. Take a AA battery and touch each end with the other set of wires. If the cone moves out then the wire on the + is +. If not, the other wire is +
take a set of wires and connect to the terminals. Take a AA battery and touch each end with the other set of wires. If the cone moves out then the wire on the + is +. If not, the other wire is +