Chris
It's not the size of wire that counts. #14 stranded should be adequate.
The switch that you use must be able to handle at least 6-8 amps as you
may end up replacing this after some use. Don't run the relay power
wiring through the transmission switches as you may burn them out after
some time as well.
The relay is there to disengage the operation of the od while operating
in reverse, first and/or second gear.
When I had my TR3, I only had a few dollars and sense and used a horn
relay wired in the circuit. The horn relay was not rated for continuos
duty and eventually it expired. Now a days, it is quite easy to find a
suitable relay from the wrecker yard. Any 12 volt a/c relay would do as
they are rated for continuous duty.
Do it right and find a relay.
Larry Ternowski
Surrey BC
Chris De Wet wrote:
> The D-type as used on earlier spitfires do need a relay .... which I'm
> missing of course . I don't have big bucks either :-(
> I prefer originality , but can I just run a big wire until I have
enough
> money ? How big ? Any advice would be appreciated .
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