Originally Posted by tphillips
I have a 1967
globetrotter and from what I can tell, the 12 volt
system is wired using aluminum wiring while the 110 volt is copper. ...
Your Globetrotter was built in California.
My Overlander was built in Ohio with the reverse of the above.
If your 12 volt systems work as expected then you have no problem. If not, then you must battle aluminum oxide (rust) on the connections. Considering a 12 volt system, there is no appreciable safety issue involved.
Ohio-built Airstreams need more attention.