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Tiny tesla coil DIY Kits SGTC BALL-GAP Discharger spark gap tesla coil science

(530)

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US $38.00

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Condition:

New

Quantity:

Out of Stock17 sold

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Located in: Chengdu, China

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Estimated between Mon, Oct 6 and Fri, Oct 10 to 94104

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eBay item number:185684438577

Last updated on Aug 08, 2025 05:39:29 PDTView all revisionsView all revisions

Item specifics

Condition: New: A brand-new, unused, unopened, undamaged item (including handmade items). See the seller's ...

Modified Item: No

Custom Bundle: No

Non-Domestic Product: No

Brand: HandsMagic

UPC: 709327715771

Item description from the seller

About this seller

Joined Mar 2017

Usually responds within 24 hours

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Detailed seller ratings

Average for the last 12 months

Accurate description

5.0

Reasonable shipping cost

5.0

Shipping speed

5.0

Communication

4.9

Home & GardenToys & Hobbies

Seller feedback (622)

This item (5)

All items (622)

n***k (270)- Feedback left by buyer.
More than a year ago
Verified purchase
Great toy, good service from seller (I had a small problem, they told me quickly how to fix it). Don't touch the balls after turning it off; the capacitor may still have a charge!
_***a (108)- Feedback left by buyer.
More than a year ago
Verified purchase
Neat little kit. Very good quality components! Easy assembly. Only issue. I wish it had included assembly instructions to follow, instead of having to download/search for them. Otherwise all good!
o***o (209)- Feedback left by buyer.
Past year
Verified purchase
As described, reasonably well packed. Surprisingly quick delivery!

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Product ratings and reviews

4.4

14 product ratings

10 users rated this 5 out of 5 stars
2 users rated this 4 out of 5 stars
1 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
1 users rated this 1 out of 5 stars

Durable

Would recommend

Entertaining

Most relevant reviews

See all 13 reviews

by vbarlow_0
Sep 05, 2018Top favorable review
A bit of work to figure it out, but worth the effort and money!
The assembly instructions are on a website referred to in the printed instructions. Those instructions are fairly clear, but show an older version of the High Voltage Signal Generator than what shipped with my kit. That said, it mentions this in the instructions, but no pics there, so you have to figure the differences out for yourself. All in all, a little patience, a decent supply of glue that dries clear, a bit of shrink tube and you have yourself a wonderful little Tesla Coil! It does run louder than my other kits, but I attribute that to the Spark Gap. It gets louder still when jumping an arc to anything else (like your fingers). In the pics below, you'll see the little blue heatsinks I added to the transistors. I did this more for heat management and paranoia that anything else. Just ... The assembly instructions are on a website referred to in the printed instructions. Those instructions are fairly clear, but show an older version of the High Voltage Signal Generator than what shipped with my kit. That said, it mentions this in the instructions, but no pics there, so you have to figure the differences out for yourself. All in all, a little patience, a decent supply of glue that dries clear, a bit of shrink tube and you have yourself a wonderful little Tesla Coil! It does run louder than my other kits, but I attribute that to the Spark Gap. It gets louder still when jumping an arc to anything else (like your fingers). In the pics below, you'll see the little blue heatsinks I added to the transistors. I did this more for heat management and paranoia that anything else. Just of note: the toroid that is included with the kit simply sits on top of the copper at the end of the copper coil. It helps the coil throw arcs, but only sits there by gravity so beware of it falling off! Have fun, but be careful you don't fry anything sensitive to such energy fields or catching an arc! Also, you can easily burn your fingers if you hold something near the coil to light up!
Verified purchase: YesCondition: NewSold by: handsmagic
by dayfan
Sep 20, 2018
Fun and historical unit easy to make and works well.
Works as advertised but be sure to insulate and dress the leads properly or you will get arcing between the primary and secondary. The unit will tell you if you need to dress the leads better. A very nice unit, my brother has one on order on my recommendation.
Verified purchase: YesCondition: NewSold by: handsmagic
by n3oma
Jul 29, 2022
Cute little toy or demo
I use this to demo Tesla coils and resonance when training ham radio operators. For me it was easy to build and worked on first power up. Not powerful, but throws a good 2 cm spark every half second or so. Worth the money.
Verified purchase: YesCondition: NewSold by: handsmagic
by rslave1
Feb 01, 2021
Mixed review
Difficult to assemble, the instructions have missing steps (which they explained are not missing). Most of the construction has to be figured out from the pictures, which are not all that clear, either. Anyway, if you want to make a little spark, or light up a flourescent bulb, go for it.
Verified purchase: YesCondition: NewSold by: handsmagic
by rvhermit
Apr 09, 2020
Very nice quality kit
I've tried out several Tesla Coil kits and this is by far the best design and quality parts. Fun in the toilet paper wars 🤷‍♂️. I would recommend this to anyone.
Verified purchase: YesCondition: NewSold by: handsmagic

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