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No hay artículos en el carroSteve B.
Comentado en los Estados Unidos el 5 de abril de 2025
This Tesla coil may work provided you build it according to the picture in the instructions and not the written part. My partner soldered this up according to the written part… Tesla coil does not work. The resistor “color wuheel” descriptions for the 2K and 10K resistors are incorrect. For 8 bucks or whatever it’s not worth it to de-solder the resistors and correct it. 1 star for the practice soldering. Don’t buy, look for another brand.
J
Comentado en los Estados Unidos el 27 de octubre de 2024
Good solder practice, item worked for a day or two and then stopped working.
Chip
Comentado en los Estados Unidos el 25 de enero de 2024
It's an easy build and works quite well.Fun way to play with 30-40 thousand volts at a harmless amperage.Built it very carefully, didn't work. Checked everything with ohmmeter, all perfect.I rewound the L1 turn in the opposite direction and it fired right up.Looking down, the turn connects to L1, goes Counter Clockwise up L2 and connects to it's target pad.
Annette Fischer
Comentado en los Estados Unidos el 5 de junio de 2023
My kit was missing a 1.0uF electrolytic cap and one of the red LEDs. The biggest problem with the design is that the feedback to the transistors are polarity dependent. This means the current direction in the coil matters. The first two pictures show that the red (primary) loop are in the same direction as the secondary but one direction works and other other doesn't. If the 'arrow sticker is counter clockwise then the Tesla coil doesn't work for me.The instructions doesn't mention LED2 which is basically power and LED1 indicates the amount of current being drawn from the Tesla coil.Hacks and improvements. First, I put a small connector on L2 terminal so I can disconnect the coil without needing to desolder it. The wire is fragile and for storage you would like to disconnect the coil so it can lay horizontally. Second, I added 7 ceramic caps to the power supply traces on the bottom. The 7-caps compose of three 10uF 25V, two 0.1uF 50v and two 10nF 100V. These will greatly help with short pulsed current needed which will enhance efficiency and increase output voltage. Adding electrolytic caps will be of lessor value since their internal resistance and inductance will be to high to be helpful. I scratch through the solder mask and soldered down a little bit of copper tape on both sides of the power traces to mount 0805 SMT caps. You might not need the copper tape if you use 1206 or 1210 caps. Be careful if you use magnetic wire and additional windings as the back EMF might breakdown (destroy) NPN TIP41C transistor. If it is damaged you'll have continuity between the 1st and 2nd pins and between 1st and 3rd pins. This happened to me and I had to replace the TIP41C to make it work again.There is a typo in the instructions, the small cut out parts list and the silkscreen on the PCB are correct with listing the NPN transistor as TIP41C, but the instructions incorrectly lists it as TIP42C which is a PNP.The unit worked fine with a 12v DC 1A power supply.
EulerWorld
Comentado en los Estados Unidos el 17 de octubre de 2022
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