Joy,
You can get the diode isolator from any RV place. I used what looks
like a Ford-style starter relay ("solenoid") that's rated for continous
duty and powered from the ACC line. The advantage of a relay is that
there's no voltage drop. The diode isolators usually place a diode in
series with the charge line to the trailer AND in the charge line to the
vehicle battery. Although I've never seen any comments on this
configuration, it seems to me that it would HAVE to affect the charging
system on the vehicle because of the slight voltage drop of the diodes.
It's not much (a couple of tenths of a volt), but it would be enough to
affect the voltage regulator, IMO.
<<Jim>>
"Mr. Joy H. Hansen" wrote:
>
> ----- Original Message -----
> From: Jim Dunmyer <[EMAIL PROTECTED]>
>
> I'm interested in the diode isolator circuit. Is it something that is
> available from Radio Shack? Or, do you have a shematic that I could
> construct one from?
>
> Is there a switch just in case you really do want to run power to the
> trailer from the tow vehicle when the tow is not running?
>
> Joy
-
--
<<http://www.oldengine.org/members/jdunmyer>>
<<[EMAIL PROTECTED]>>
<<lower SE Michigan, USA>>
<<mailto:[EMAIL PROTECTED]>>
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