the original one [factory?] in a 57 panel I had was the exact size of a tomato juice can, don't know how many swipes, but it's not likely it would've helped much under a constant acceleration load uphill
"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