Stepdown Radio power source

ernie28
ernie28 Expert Adviser
edited May 2012 in HUDSON
Putting the finat touched to the Pacemaker re-wiring. What is the draw of the radio? Reason is I am not sure if this should be powered off the ignition switch or direct from the circuit breaker. I do not want to damage the ignition switch by excessive current if it is not designed for the radio current.
Thanks in advance

Comments

  • Marconi
    Marconi Senior Contributor
    The radio is wired to the battery side of the main circuit breaker.
  • ernie28
    ernie28 Expert Adviser
    Many thanks for your input guys. There is no accessory stage on the ignition key, so to the circuit breaker terminal it has gone.
  • [Deleted User]
    [Deleted User]
    I have been told those old radios draw about 5-8 amps most of the time, with a 14-amp fuse for protection. They were wired off the ign switch, but, if in doubt, wire it direct. Just don't forget and leave it on !!! (LOL)
  • ernie28
    ernie28 Expert Adviser
    Thanks rbennett47, I have done it direct for now but was concerned re "leaving it on" as flat batteries are no good to anyone. I would prefer to go thru the switch as a safety measure but was concerned re the switch's current capability.
  • [Deleted User]
    [Deleted User]
    Every stepdown I've ever owned has had the radio wired through the switch. I think that probably was a feature as soon as radios in cars started being more common, for the very reason you stated: flat batteries. We converted our '54 Hornet to 12V several years ago, and have been running the radio through the ignition with no problem. If you're running a lot of extras though, there are aftermarket devices that will take the load off the ign switch with relays...good luck.
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