was posting at the same time - read it but didn't bother editing .... the jumping musta been similar effect from the broken piece making contact intermittantly ... and it is cheap repro, the original was a stamped tin housing
"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