FWIW = for what it's worth, which around here frequently is 'not much' grin

I've been thinkin the steel core wires are your problem, less surface effect on steel than copper or carbon?

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