Scored this 1st gen 1967 200S yesterday. It's in really good shape for its age. The guy said it had 2 caps replaced, other than that, and the 3 prong plug, it seems to be stock. Assuming it didn't get changed, what was the impedance on the output jacks when it left the factory, as there are no numbers on the label? I guess it's either 8/4 or 16/8. Is there a way to test it without potentially frying it?
