2006-12-14 07:23:29 · 10 answers · asked by Sparks 1 in Science & Mathematics ➔ Engineering
You'll need a big spool (or 2) of enameled copper wire, and something to make a magnetic loop, preferably a ferrite bobbin or toroid, or some E&I shaped steel laminates.
Wind on a primary, say 500 turns of 28awg wires, and a secondary of say 50 turns of 20 awg wire. Then leave it well alone cos you will probably hurt yourself if you put any high voltages on it.
2006-12-14 07:28:17 · answer #1 · answered by Anonymous · 1⤊ 0⤋
A transformer is fairly simple to build. All you need to do is construct two coils of wire in close proximity to each other. Power is moved from one coil to the other via magnetic inference. To build the coils properly, you will need to know the voltage you will be starting with and the desired output voltage. For instance, if you are starting with 120 volt household current and wish to step it down to 12 volts, simply wind one coil ten times as big as the other one. The coils can also be reversed to step a voltage up. For best results, use enameled wire. If you can't find enameled wire anywhere, take apart anything that has an electromagnet, such as a doorbell. It's the wire that looks like its been painted red. Good luck and don't get shocked.
2006-12-14 15:34:51 · answer #2 · answered by rawk_chawk 2 · 1⤊ 0⤋
Basically, put two coils of wire (I'm ignoring autotransformers) very near to each other. Then, an AC current in one will induce an AC current in the other. If the "primary" coil has (say) ten times as many turns as the "secondary" then the AC voltage coming out ot the secondary will be ten times less than the AC voltage going into the primary. However, the induction is by magnetism, and for low (mains) frequencies, it helps to have a "core" consisting of iron leaves (with insulation in the form of paint between them) to concentrate the magnetic flux. The core is the difficult bit to make yourself - winding on enamel insulated wire is easy, provided you can keep count.
2006-12-15 20:39:38 · answer #3 · answered by andrew f 4 · 0⤊ 0⤋
With a nice U shaped iron core and lots of lacquered copper wire to wind on each of the arms...
2006-12-14 15:25:45 · answer #4 · answered by Cubic Spline 3 · 1⤊ 0⤋
Go down the bingo and steel a mobility scooter and watch the lazy fat sod have to walk home
I know this is not the best answer but do it for the fun of it.
2006-12-14 15:31:15 · answer #5 · answered by Anonymous · 1⤊ 1⤋
What kind of transformer?
Mains, RF, IF, etc.
If it's mains, buy one, but even then, don't piss about with electricity if you don't know what you are doing. It can kill you.
2006-12-14 18:30:00 · answer #6 · answered by efes_haze 5 · 0⤊ 0⤋
You don't 'make' a Transformer, they are an alien race.
2006-12-14 15:28:06 · answer #7 · answered by Litmus180 3 · 0⤊ 2⤋
wire and a magnet
2006-12-14 17:44:53 · answer #8 · answered by Anonymous · 0⤊ 1⤋
First we need to know: autobot or decepticon?
2006-12-14 15:24:51 · answer #9 · answered by colorlesschunk 2 · 3⤊ 2⤋
WHY DO YOU WANT TO KNOW THAT>
2006-12-14 15:31:18 · answer #10 · answered by Anonymous · 0⤊ 1⤋