This probably sounds really stupid, so I'll ask anyway!!! I have a Revmaster 2100 with the standard alternator, 2 wires leaving from it, going to a connector that has a couple of pins jumped and then to the voltage regulator, etc.
For lack of a diagram, I installed a relay between alternator output and load. On a test run, I killed the master switch, but the panel didn't completely shutdown. Upon investigation, I discovered that the alternator was powering the panel, and it cost me a radio in the process. Hence, the relay. However, I think the accepted practice is to switch the field instead of using a relay on the output. So the really stupid question is "How do I ID the field?" Is it that jumper on the connector at the voltage regulator? Thanks! Dave.