How to make a simple Tesla coil on one transistor
Probably every parent thought about how to encourage your child to study, such as physics. After all, the simple rote learning can not get results, you need interest. One of the ways to encourage the study of science is a hand-assembly of any artefacts and experiences with them. In this article I will tell and show you how to assemble a simple Tesla transformer, whose work will undoubtedly interest your child. So there you go.
necessary material
To assemble a Tesla coil in one transistor, we need the following materials:
1. A piece of polyethylene pipe with diameter of 50 mm and a length of 30-40 centimeters. It will serve as a basis for the secondary coil.
2. Winding an enameled wire with a diameter 0.15-0.3 mm. It can be bought at any shop, or for radio pinch unwound winding with any unnecessary power transformer (important not to damage the protective layer of varnish).
3. Copper wire 6.4 mm square. It is also sold in the shop. It made the primary.
4. Transistor. I will use MJE13006, you can buy it or be replaced by any equivalent. This transistor I have got on AliExpress here.
5. Two resistors. A 100 ohm, and the second adjustment 50 kohms.
6. Radiator. It is necessary, as in the process of the transistor will be allocated a huge amount of heat, and if it does not dissipate, the transistor simply overheat and fail. You can use any cooler, just keep in mind the basic rule: the greater the heat sink, the better. I'm going to use a computer cooler with a cooler.
7. Connecting cables.
installation assembly
Since our goal is to assemble a Tesla coil as simple as possible, the installation will be carried out in a very simple embodiment as follows:
So, let's begin our assembly with a secure fit of the transistor on the radiator housing. For this purpose a hole was drilled with a bolt and thermopaste was securely fixed in the transistor aluminum heatsink MJE13006.
The next important part of our system is the secondary winding. The wire should be wound turn to turn is very tight, we must not allow the overlapping wires. to wire tightly held as the winding spool wind the resulting tape.
I wound 1000 turns, and it took me about 2 hours. As a coil is ready, you can move on.
The primary winding is wound very easily and within a couple of minutes, the main thing to have a diameter slightly larger than the diameter of the secondary winding.
After that connect the other elements according to the present scheme above. When you connect the adjustable resistor is particularly note that the conclusions he has three, and you want to connect only two. It is those ends, between which the resistance varies as the position of the handle.
The important point. Take care that the direction of coils of the secondary winding coincides with the direction of primary turns. If it is the other way around, the setting just did not work.
And the rest of the circuit is very simple and should not cause you serious trouble. Ready Tesla transformer one transistor looks like this:
Note. Since I use active cooling, in my setup is present just two regulated power supply: one feeds the actual installation, and second only to the cooling fan.
Now carefully check all connections. In the variable resistor sets the average position of the handle and start producing.
Once the voltage on the power supply will reach 12-14 Volt - should get the following:
As seen Tesla transformer ignites and operates the gas in the energy-saving lamp at a distance of 20-25 cm from the coil.
A flowing charge from the automotive and conventional incandescent lamps looks very nice.
Caution. During prolonged demonstrations glass of the bulb may be very warm.
Demonstration of work can be seen in this video:
conclusion
The joint assembly of such a simple design, and then her work will undoubtedly please your child (and maybe you too) that will make him (her) to ask: How does it work? And, perhaps, will be of interest to the study of physics. If the material you like, you will appreciate his huskies. And thank you for your attention!