I recently purchased a 273-1512 transformer from radio shack which I plan to use to run a hobbyist electric motor I have built.
The transformer is said to be both a 12 or 25 volt model. Primary coil has two wires that come from home outlet, the secondary has two yellow wires and one black wire. The unclear instructions say for 25 volts coming out of the secondary (which is what I want) I need to connect the two yellow wires and I don't need the black wire at all. But connect the two yellow wires to what? Connect them to each other? Connect them as positive and and negative to my load?
I can't get my mind around this. I know I need a circuit for anything electric to work. That makes it seem to me that I'd connect the two yellow wires together so they'd add up to 25 volts and that I would use a black wire for the negative. I think I've already burned out one of these transformers doing that and don't want to do it to my newest one.
Is it possible I connect one yellow wire to the positive side of my load and the other yellow wire to the negative side of the load, then just dead end the black wire with electrition's tape? This is very unintuitive for me. Is this the way to get 25 volts out of this transformer?
Thanks,
Diderot2
The transformer is said to be both a 12 or 25 volt model. Primary coil has two wires that come from home outlet, the secondary has two yellow wires and one black wire. The unclear instructions say for 25 volts coming out of the secondary (which is what I want) I need to connect the two yellow wires and I don't need the black wire at all. But connect the two yellow wires to what? Connect them to each other? Connect them as positive and and negative to my load?
I can't get my mind around this. I know I need a circuit for anything electric to work. That makes it seem to me that I'd connect the two yellow wires together so they'd add up to 25 volts and that I would use a black wire for the negative. I think I've already burned out one of these transformers doing that and don't want to do it to my newest one.
Is it possible I connect one yellow wire to the positive side of my load and the other yellow wire to the negative side of the load, then just dead end the black wire with electrition's tape? This is very unintuitive for me. Is this the way to get 25 volts out of this transformer?
Thanks,
Diderot2