Many items of radio equipment are supplied with a fuse in both the +ve and -ve leads to avoid damage from missing return connections in vehicle installations, as well as providing a fuse if the -ve rail is accidentally connected to a +ve power supply point, where -ve at the supply connects to ground.
Some mobile radios had a “fuse” from their power socket -ve point to chassis inside the radio, this was a short length of tinned copper wire to protect the wiring in case of reversed connections. I replaced a lot of those fused links when I worked for a mobile radio manufacturer. 73 Dave G4AON -- Sent from my iPhone SE ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
