there's a resistance unit available from some of the repro places [Filling Station?] called "VOL-TA-DROP" that does the job - about 3" sq ceramic slab w/ a heavy wire wound resistor unit and 2 different current taps, from 5&6amps to 10&20amps - I've got one [10-20] from long ago that I used to run a nice 6V fan in a 12V truck

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