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In this Discussion
- DocHubler May 2012
- ernie28 May 2012
- Marconi May 2012
- rbennett47 May 2012
Stepdown Radio power source
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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 -
I rewired my car and pretty sure it is off the ACC on the ignition switch. There is a 14A inline fuse for the radio. My car is the 1950 Pacemaker Deluxe. One change was that I have an ignition switch from a 52-54 car (retained the starter button), but I don't think that will make any difference. I believe the Hudson manual does state how to do the wiring for the radio, although it is not shown on the basic wiring diagram.
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Many thanks for your input guys. There is no accessory stage on the ignition key, so to the circuit breaker terminal it has gone.
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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)
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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.
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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.
