read for comprehension farber, I said nothing about the AN system, I pointed out that the standards were rewritten in 1949 [and a few times since], so individual specs and the parts made using them may be slightly or substantially different than what your parts based on pre-WW2 standards were .... consider how far backward compatibility works

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics