well, try to get the soldering technique a little cleaner grin

you could look for another TF heater version with the rectangle core, like a deluxe - might find a used one that already has a good core

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