Question 1

Can two of these be connected to make a Jacobs ladder?

Accepted Answer

You can buy a neon sign transformer, from a sign company or other source, and it makes a great jacobs ladder. Be careful.

Question 2

Is this a kit or is it factory assembled

Accepted Answer

Its not a DIY kit, it comes pre-assembled.

Question 3

For safety purpose can I operate the Tesla coil under a Dome display case?

Accepted Answer

It depends on what you mean by safe. If you are trying to stop it from interfering with electronics a glass case wont do much if something electronic is brought close to it. You can test the range with a house hold CFL bulb.
https://en.wikipedia.org/wiki/Compact_fluorescent_lamp
Any one that looks like this will light up and show you the range of the coil. If you are trying to prevent someone from touching the arc, glass would work. Also if you are expecting meter long arcs that wont happen. A coil of this power only produces an arc about an inch long. Another thing to note is that the arcs from this coil do not shock you. Due to the conductor skin effect, the charge is distributed on the outside of you skin because the frequency the coil oscillates at is very high, so when you touch the arc it doesn't shock you but it will burn you. Glass would keep curious fingers from getting burned. Also it is very important to know that the arcs from the coil can produce ozone. it is recommended to use the coil in a well ventilated area since ozone and corrode lung tissue if inhaled. A glass case could cause a build up you would breath when you remove that case or a leak. it is also very important to keep the transistors cooled in the circuit so fresh air is needed to feed the heat sink. a case cold cause the transistor to over heat and fail. That is about all the safety concerns I can think of and my personal recommendation is to not have a case. You would be watching it every time it is turned on and can make sure no one touches the arc and it would receive fresh air to cool it. When it is turned off, it poses no safety hazard so no case is needed.
Take my opinion with a grain of salt, I just listed common safety issues to aid your choice and I hope you enjoy your Tesla coil.

Question 4

Whats the input and output voltage requirements of the power supply included in the kit? can this work in india (220v ac)?

Accepted Answer

The Joytech YS01 Tesla Coil Plasma Loudspeaker package includes a standard auto volt AC power adapter similar to phone charges with a voltage input range of 100-240V converted to DC 12V 5A, if I'm not mistaken, as the output voltage. This could certainly be plugged in a 220V outlet with no worries just like any power source for laptops or small appliances. Its made in such a way that plugs fit only one place so its easy and safe to use. This particular item is one of the best examples of a miniature Tesla Coil  - a must have - even with its price.

ASIN	B09JBRDJ78
Age Range Description	over 15 years old
Best Sellers Rank	#206,497 in Toys & Games ( See Top 100 in Toys & Games ) #1,886 in Educational Science Kits
Brand Name	Joytech
Customer Reviews	4.3 4.3 out of 5 stars (696)
Educational Objective	interest of science
Item Dimensions	3.3 x 3.3 x 6.9 inches
Item Weight	10.4 ounces
Manufacturer	Joytech
Manufacturer Part Number	YS01B Bluetooth
Manufacturer recommended age	15 years and up
Material Type	Tesla Coil
Number of Items	1
Number of Packs	1
Size	YS01B-3.3 x 3.3 x 6.9 Inch
Theme	Tesla Coil
Unit Count	1 Count

Joytech Bluetooth Music Tesla Coil Arc Plasma Loudspeaker Wireless Transmission Experiment Desktop Model Toy YS01B

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