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Dave and David (and the list).
I found a possible commercial solution to hooking up a 12 volt trailer to a 24 volt
truck:
These folks have a 24 volt to 12 volt trailer lighting converter. They also have a
selection of brake controllers and other electrical products for 24 volt and 12 volt
trucking applications.
I have not dealt with them since I ended up converting my M37 to 12 volts as it was
easier (and cheaper) than converting the used Cummins that I put into it to from 12
volts to 24 volts.
http://www.redarc.com.au/tl.htm
Hope this helps.
C. Garbee
'53 M37 (with a Cummins 4BT)
DaveCole wrote:
> The only practical thing I can see to do is to add a converter to get 12 volts
> from the 24 volt battery power on your MV and then wire in a standard 12 volt
> brake controller. For the brake lights, stop light, and running lights, I'm
> thinking about using 4 relays with 24 volt DC coils to switch the 12 volts for the
> trailer. I'm thinking about attaching a box with the relays near the pintle
> hitch and wiring it into the standard MV wiring. I can't think of a more elegant
> solution. A person could use a number of rectifiers wired in series to get a
> total voltage drop of 12 volts for each circuit, but it seems to me that since 12
> volts has to be obtained for the trailer brake controller, why not just use the
> same source. 24 VDC relays are pretty cheap - 10-$ 15 each.
>
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