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On Sun, 2005-03-27 at 12:33, Jim Adney wrote: > On 26 Mar 2005 at 0:31, Dave Hall wrote: > > > > DUHHHHH, Just sitting here thinking about it. Connect the coil of the > > > isolator relay to the D+ of the generator. There is no voltage there > > > until the engine starts and the generator is above it's cut in speed. > > > 12V Gen. cut-in = 2200-2300 armature RPM = 1000 RPM crankshaft. approx. > > > Russ, what's wrong with using the charging light output connection on the VR to > > operate the relay for the second battery? > > Nothing. Those 2 terminals are connected together inside the VR. They are > electrically identical. I have never payed that close of attention to the internals in a regulator. But now that you mention it, the schematic on the outside of a Bosch regulator box does show it a D+/61. -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) '05 KIA Sorento SUV russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~