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I want to know if it's possible to convert a 1,5v battery to a 220-230 v.I looked in google and the results didn't helped me how I wanted.What is your opinion?I really need this because I want to learn how the AC current reacts.
I'm also interested if I can use a copper conductor instead of a aluminium conductor.I don't know if I can use electrical cables in what I want to do but I do want to see results.Can a electronicist use electrical cables in his work?I'm not a big fan of aluminum and I want to know if I can get hurt.
The wire size depends on the application and where in a circuit it is.
For signal interconnections within a circuit board (very low currents and not flexing after fitting) I normally use "wire wrap" wire.
For slightly higher currents and interconnections between boards, 7/0.2mm - usually offcuts of "burglar alarm" wire as I have a lot spare from when I installed my security system.
Higher currents and higher voltages need heavier conductors and better rated insulation.
In standard industrial cables I have everything from 0.5mm^2 up to 50mm^2 available, as we design and build industrial electronics and control systems.
It's all down to usage; too small for the current involved and things overheat, but bigger wires can be harder to work with and you cannot use a lot of them in a small area.
ps. The little inverter circuits you link to will give a high voltage but also often at a high frequency (depending on the design).
Most are not suitable to give a 50 or 60Hz output, if you are trying to emulate mains power.
If frequency does not matter, they may be OK.
With such a low voltage to start with, and with such large step-up ratio, I doubt you can get an efficiency above 50%. Probably much lower than that.
So you'll be able to draw less than half a watt from it.
I'm sure someone even before I was born played with a 1.5 volt wet cell and stepped it up to 240 volts maybe not a real sine wave but I sure have used a relay as a oscillator and transformer I was a little boy then I played with the ideal of making a spark gap transmitter out of a relay I found one that would osculate I then thought what the heck I have a door bell transformer let's let the relay oscillator switch the the battery on and off and see what happens it knocked me on my butt.
I can't say what voltage I ended up with I didn't have any volt meter back then I can't remember if it was even a door bell transformer I used that shocked me I made a bunch of home made ones out old ones. Looking back I've done a lot of crazy stuff as kid my I can still remember My Dad telling why the tube radio I made would quit on me I used water pipe solder and the copper would turn a white green and the thing would quit working. Dad said son you use rosin core solder your not hooking up water pipes. But then again I learned a lot about soldering LOL
I got do it over and over every time something I made turned that white green and stopped working. I can still remember my first trip to radio shack I came home with a hand full of transistors and a real soldering iron and oh yell baby a big roll of rosin core electronics solder