Originally Posted by kevinkatz
i dont know if i have a converter. new to this. there is a transformer thing in the As that has two switches on it that say "12v" or "city power".
what is what called?
Airstream's had a Univolt, that was a battery charger and a source for 12 volt
DC power, except the Caravels.
model had a 12 volt
and 19 volt AC transformer, as you describe.
You do not need a battery, since the only way the battery could be charged, was when the trailer was hooked up to a properly wired tow vehicle.
Make sure a previous owner did not have a 12 volt
DC charger wired into the system.
You can easily update the trailer system, with a fuse panel and a Univolt, so that the 12 volt DC system works as it does in all the other 1965
and up trailers.