There will always be loss. Nothing is 100% efficient. I suggest you read this article on the subject. Does wire have resistance? There is no free anything, there will always be loss.and if you transfer power wirelessly from one battery to another do you have losses? can you transfer exactly half of a battery to other one?
I don't know, but why should it matter since Tesla made his device long before the invention of the transistor. Why would you think such a question was reasonable? What do you think the transistor and capacitor are supposed to do?
That pretty well covers it. Tesla was designing his original coils long before the transistor was invented. If you want to look at some Tesla Coil designs including those based on the original just do a Google of Tesla coil circuits design. The problem I see here with your line of questioning is you really do not understand the basics and without understanding the basic electronic fundamentals you will never understand any of this stuff and may electrocute yourself in the learning curve. Tesla coil designs develop high voltages and currents which can make you very dead very fast. Not to mention burning and smelling terrible. You learn to swim in the shallow end of the pool.
Ron
Thank you, but i really don't have much material to work with,, i wanted to make the small one just for getting to know with it. about 20 cm high , and 4 in diameter.. i watched some videos but. . not helping..You won't get much of anything with a tiny 9 Volt battery. If you want to try a solid state design then try something like this.
Ron
by Aaron Carman
by Aaron Carman
by Jake Hertz
by Jake Hertz