My 1940 half ton had only 1 fuse in it. I have decided to add a nice small 8
circuit fuse block to it. My plan was to use a relay to switch power on and
off to the fuse block. The relay will be controlled by the ignition switch.
The only 6 volt relay that I have is from an old positive ground Ford. In
order to make it work, I will have to connect the relay coil backwards. I
tested the relay and was surprised to find that it operated fine with the
coil hooked up either way.

 

My questions are: 

 

1.Will a horn relay last when on for long periods of time?

 

2. How is it that a DC relay coil works no matter what polarity it is
connected to?

 

Thanks

Mike Burns



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