Hi to all, I know enough about electicity and voltage to know I don't know enough.
I have two dial type 0 to 120 volt AC rheostats. One has a rated output of 20 Amps the other is 2.5 Amps. the larger one weighs about 8 Lbs. the smaller about 4 Lbs. so they are commercial grade. When cutting cores the dial of the larger rheostat is set around 5 Volts. Here's my question. Can I use the larger rheostat to feed the smaller one to get greater control of cutting temperatures? For example, set the first rheostat to 15 Volts then use the second to vary the voltage from 0 to 15 volts over its 0 to 100% rotation. Will the smaller rheostat work if the input voltage is reduced? Could this damage one or the other or both? Anybody know what kind of Amp draw a 48" wire has? Would it be over the 2.5 Amp rating of the smaller rheostat? If the above does not work, what kind of device could reduce AC current by 50% or 75% between the rheostat and the cutting wire? Thanks for any help in advance. Steve Bingham AKA ilikegliders Boise, Idaho RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
