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Tesla Coils


Click on a picture to jump to the item description, below.
mtc3
MTC3
 
btc10
BTC10
 
tlite10
TLITE10
 
  tcl50
TCL50
 
btc30
BTC30
 
btc40
BTC40
 
btc50
BTC50
 
vactesla
VACTESLA10
 
quasar60
QUASAR60
(solid-state)
btc70
BTC70
 

The spectacular and highly visible effect produced by tesla coils has been the subject of controversy for years. The high frequency high voltage energy produced possesses qualities unlike conventional electricity. It defies most insulation material, transmits energy without wires, produces heat, light and noise yet harmlessly passes through human tissue with virtually no feeling or shocking effects. Much research, money and effort was dedicated to actual construction of similar large devices capable of producing 200 foot lightning bolts and illuminating light bulbs 25 miles away. Nikola Tesla was the originator of this research and was often thought of as a charlatan. As progress was made in the electrical sciences it was soon realized that he was indeed correct, and responsible for many advances in the development of energy production. He has now been credited with these advances and original techniques. His main theory, however, is still very much in question and many dedicated groups are hopeful in obtaining some break that will resurrect it. The tesla coil is the basis for this research and never ceases to amaze all those who come in contact with its highly visual and audible effects.


Table Top Tesla Coil
Easy-To-Build
250,000 Volts!

capacitor

capacitor capacitor

capacitor capacitor capacitor

Video:

Produces 8-12" Visible Lightning-Like Discharges. Both the kit and assembled unit include an 8" toroid and wound coil (so you don't have to do any winding). Excellent Science Project. Fully adjustable.

This is a spark driven Tesla coil generating highly visual and audible sparks into open air without a return contact.

The unit operates from a standard wall outlet requiring less than two amps. The transformer is current limited to 60 ma and center point grounded.

The tesla coil is easily tabletop operable and is a two-level assembly consisting of a top and bottom section. The top supports the vertical mounted secondary output coil and the flat Archimedean spiraled primary along with tunable clip lead. The bottom supports the transformer, capacitor and spark gap assembly. A metal control panel is connected to earth ground along with the secondary return minimizing any dangerous shock hazards.

The spark gap uses two pure tungsten electrodes rarely requiring cleaning or dressing. Hardware is all brass where required, with the primary coil being a hybrid between copper tubing and a heavy insulated wire.

The kit version contains all parts to complete the unit, including a pre-wound and fully prepped secondary coil, and an 8 x 2" toroidal terminal which greatly adds to the performance and overall appearance of the completed system.

Assembly: Mostly mechanical assembly with some soldering.

Applications: Use for a science project, special effects prop, research of high frequency electricity, and much more.

  • Transmit wireless energy
  • Materials glow, disintegrate, burn
  • ION motors, induction fields
  • Corona and St. Elmo's Fire
  • Amazing and spectacular special effects
  • Size: 23" H x 12" sq. base
  • Shipping Weight: 25 lbs.
  • Heavy/Bulky Item: shipping likely exceeds $25

Additional Free Instructions         See our Page 2 for parts and accessories.

BTC30 - Assembled & Tested with 8" Toroid ... $574.95
BTC3K - Kit/Plans with 8" Toroid ... $474.95
BTC3 - Paper Plans ... $15.00
BTC3-D - Downloadable Plans ... $7.00

TR220/110/300 - Optional 220V Stepdown Transformer for overseas customers ... $69.95


Medium Power Table Top Tesla Coil

18 TO 30" DISCHARGES!

500,000 Volts!

Intended for Special Display Experiments -
Produces Intense Discharges!

capacitor
capacitor capacitor capacitor
capacitor capacitor

 

Videos:

Power enough for most R&D experiments. Kit and assembled units include wound coil (so you don't have to do the winding), multi-section spark gap, and 12" toroid terminal. Individual parts also available.

This is a spark driven Tesla coil generating very visual and audible sparks into open air without a return contact. It operates from a standard wall outlet requiring less than six amps.

This Tesla coil can be operated on a tabletop. It is built as a two-level assembly consisting of a top and bottom section. The top supports the vertical mounted secondary output coil and the flat Archimedean spiraled primary along with a tunable clip lead. The bottom supports the transformers, capacitor and spark gap assembly attached by machine screws and nuts.

A metal control panel is connected to earth ground along with the secondary output coil return, reducing line voltage shock hazards. The spark gap is air-cooled with a high output muffin fan and uses three pure tungsten electrodes rarely requiring cleaning or dressing. Hardware is all brass where required with the primary coil being all copper tubing.

The kit contains a pre-wound and fully prepared secondary coil and all parts to complete the unit, including a 12 x 3 inch toroidal terminal which greatly adds to the performance and overall appearance of the completed system.

Our BTC40 used in laser guiding of HV discharge, photo complements of the Optical Society of America (© 2012 OSA, Optics Express Vol. 20 No. 12):

Assembly: Mostly mechanical assembly with some soldering

Applications: Use as a science project, museum display, special effects prop, and for electrical research of high frequency electricity.

  • Air-Cooled Tungsten Spark Gap
  • Choice of 115/220 Operation
  • Parts Individually Available
  • Size: 30" H x 16" sq. base
  • Shipping Weight: 45 lbs.
  • Heavy/Bulky Item: shipping will exceed $25

Attention Museums!  This Tesla coil is built using transparent polycarbonate to reveal the inner wiring. This is truly a spectacular looking device!

Additional Free Instructions         See our Page 2 for parts and accessories.

BTC40 - Assembled with 12" Toroid ... $1649.95
BTC4K - Kit/Plans with 12" Toroid ... $1249.95
BTC4 - Paper Plans ... $20.00
BTC4-D - Downloadable Plans ... $10.00

TR220/110/1500 - Optional 220V 1500W Stepdown Transformer for overseas customers ... $99.95


High Power Table Top Tesla Coil

Up to 4-foot Discharges!

A Spectacular Electrical Arc Display!

btc50
btc50 capacitor btc50

Power enough for most R&D experiments. Kit and assembled units include wound coil (so you don't have to do the winding), multi-section spark gap, and large 18" toroid terminal. Individual parts also available.

With twice the output power of the BTC40, this classic core & coil design throws long sparks of electricity into the air, and is still able to run from a standard wall outlet.

This is a larger and heavier Tesla coil than our BTC40 that requires 2 people to move, but is still small enough to be operated on a tabletop.

A heavy piece of wire is connected to the front panel of the unit for grounding to a dedicated lead if necessary. A grounded strike ring prevents the long electrical arcs produced by this coil from arcing to some of the sensitive electronic parts and pieces. Bypass capacitors are placed across both the neutral in the hot AC line and connected to the third wire grounded lead.

The spark gap is air-cooled with a high output muffin fan and uses three 2 x 3/8" pure tungsten electrodes that rarely requiring cleaning or dressing. The tungsten electrodes are easily adjusted to help vary the length of the output discharge. This can be used to increase or decrease the recommended time of running your coil.

Hardware is all brass where required with the primary coil being all copper tubing.

The kit contains a pre-wound and fully prepared secondary coil and all parts to complete the unit, including an 18 x 5 inch toroidal terminal which greatly adds to the performance and overall appearance of the completed system.

All our Core & Coil Tesla Coils use special built "beefed up" capacitors intended for optimum and long term reliable performance. They also use transformers with special "beefed up" internal secondary HF chokes wound to block damaging voltage transients. This eliminates breakdown when used with the proper value external resistors (included).

Assembly: Mostly mechanical assembly with some soldering

Applications: Use as an advanced science project, museum display, special effects prop, and research (such as the electrical confinement beaming of high frequency electricity for weapons), and other uses.

  • Air-Cooled Tungsten Spark Gap
  • Choice of 115/220 Operation
  • Parts Individually Available
  • Size: 34" H x 16" sq. base
  • Shipping Weight: 70 lbs.
  • Heavy/Bulky Item: shipping will exceed $25
       
Instructions

Attention Museums!  This Tesla coil is built using transparent polycarbonate to reveal the inner wiring. This is truly a spectacular looking device!

See our Page 2 for parts and accessories.

BTC50 - Assembled with 18" Toroid ... $2499.95
BTC5K - Kit (includes premade secondary coil and 18" toroid) ... $2199.95

TR220/110/1500 - Optional 220V 1500W Stepdown Transformer for overseas customers ... $99.95


High Power Vacuum Tube Tesla Coil
capacitor
capacitor capacitor
capacitor capacitor
capacitor capacitor

Excellent for Demonstrating Wireless Power Transmission

These spectacular display devices produce arcs and sparks quite unlike the damped spark gap driven Tesla coils. Operation does not require a noisy spark gap that produces copious amounts of RFI radio frequency interference, but operates efficiently at the quarter wave frequency of the secondary coil.

Vacuum tubes, while large and requiring filament power, do offer robust and forgiving operation and are intended as a good starter approach to solid state Tesla coils. This approach is far less temperamental than the solid state MOSFET or IGBT drivers. However once these devices are debugged and tweaked one can obtain some excellent results. Our lab FET coil generates over 6 foot sparks using only 3 kilowatts. (The fully assembled 1KW tesla coil sold here produces up to 18-24" sparks.)

The output of the oscillator is relatively closely coupled to the secondary coil designed for high Q performance and self resonant to the 1/4 wave of the oscillator frequency. The voltage distribution is now that of a quarter section with a current node at these base and voltage node at the top. Input power to the coil is raw unrectified AC at 3000 volts rms with a current of 0.5 amps. Peak voltage is over 4000 volts and is supplied by a conventional plate transformer being fed by a voltage adjustable variac for power output control.

(We also have built coils using 304TH, 450TH and parallel 2500TH's with a full 5000 watts of plate dissipation. This coil produced spectacular hot flaming arcs up to 8 feet with 8 kw input.)

A pulse signal is also shown that controls the grid of the tube allowing a wide range of spark texture variation by changing the duty cycle and frequency.

For those building this from scratch, the circuit of the vacuum tube device is a high powered Hartley radio frequency oscillator tuned to the resonant frequency of the secondary coil. The circuit uses a medium powered 833A triode transmitting tube that inherently has a high grid to plate capacitance and is readily available. The plate section of the coil is wound with 1/4 inch copper tubing. The grid feed back coil is wound with #16 litz wire. The secondary is wound with #24 litz wire on a properly prepped plastic form.

  • Quieter than standard tesla coils
  • Continuous-wave output gives stronger energy field
  • Parts Individually Available
  • Size: 36" height x 16" sq. base
  • Shipping Weight: 45 lbs.
  • Heavy/Bulky Item: shipping will exceed $25

We can custom build vacuum tube or transistorized Tesla coils up to 5 kw. The transistorized coils can be modulated to sounds, music, etc. and are great for museums or just as a spectacular high-tech gadget. Please Email us for inquiries.

Heavy/Bulky Item: shipping will exceed $25


See our Page 2 for parts and accessories.

VACTESLA10 - Fully Assembled 1kW Vacuum Tube Tesla Coil with 12" Toroid ... $4750.00
VACTESLA1 - Vacuum Tube Tesla Coil Plans ... $20.00
VACTESLA1-D - Vacuum Tube Tesla Coil Downloadable Plans ... $10.00


Solid State Tesla Coil
quasar60

quasar60 quasar60 quasar60
quasar60 quasar60 quasar60

Controllable Oscillation Allows Musical "Notes" to be Played Through The Tesla Coil's Electrical Discharge

This solid state tesla coil provides a spectacular display of lightning-like discharges for museums, attention-getting advertising, special events, and of course high-voltage high-frequency research. But the most fascinating feature is the ability to play music. By rapidly modulating the output frequency, "notes" can be played by the resonance of the electrical discharge, and when a keyboard is plugged in and passed through the proper controlling circuitry (both of which are included with this tesla coil), the tesla coil becomes a musical instrument that uses lightning bolts to make notes.

The solid state tesla coil is sold as a "minimal kit" requiring the purchaser to assemble the device in order to make it operable. This is a simple mechanical assembly, but necessary to stay in compliance with FCC regulations which allow any entity (business or individual) to assemble up to 3 radio transmitters without requiring a license. It is suggested to not operate this solid state tesla coil in densly-populated environments, such as cities, for purposes of radio interference -- or if this device is to be operated in such an environment, it is suggested that a Faraday Cage be built to block electromagnetic emissions (plans on building a Faraday Cage are included with all versions of the solid state tesla coils). Also, operating this tesla coil inside a metal building, such as a steel garage, will help to reduce or eliminate RF emissions.

Unlike the transformers used in standard core-and-coil designs, this advanced device poses a less-lethal electrical hazard -- which is one of the attractive features of solid state tesla coils. (However, anything that plugs into 115VAC wall power poses an electrical hazard, and precautions for working with high voltage items should be observed.)

Includes all components: the control box, the interrupter box (which includes audio input), a keyboard and audio cable, a power supply and variac (runs on 115VAC wall power), the full-bridge rectifier, tank circuit, wound primary and secondary coils, and a 20" toroid.

Heavy/Bulky Item: shipping will exceed $25


See our Page 2 for parts and accessories.

QUASAR60 - "Minimal Kit" Solid State Tesla Coil with 20" Toroid ... $5500.00


High Power Large Tesla Coil

8 To 10' Discharges!
2,000,000 Volt Output Equivalency

Large Tesla Coil

Large Tesla Coil Large Tesla Coil Large Tesla Coil Large Tesla Coil
Large Tesla Coil Large Tesla Coil Large Tesla Coil Large Tesla Coil
Large Tesla Coil Large Tesla Coil Large Tesla Coil Large Tesla Coil

Well-suited for museum displays, university research, laboratory studies, and the advanced hobbyist familiar with the use of high voltage.

The complete BTC70 comes ready-to-use with all components: the power supply with transformers, chokes, and 20 feet of HV cable (to operate the coil from a safe distance); the base unit with capacitors and spark gaps; the fully-wound secondary coil; and the toroid. The coil stands over 6-½ feet high, and is powered by a single-phase 3-plug "laundry" socket (not a standard 115V wall outlet like our other coils).

  • Advanced Project for High Voltage Research
  • Throws Electrical Discharges out to over 10 Feet
  • Spectacular Display of Natures Fireworks
  • Materials Testing
  • Air-Blown 4-Point Heavy 3/8" Tungsten Spark Gap
  • Size: 6.5' Height x 24" Square base
  • Power: single-phase 3-plug "laundry" socket
  • Shipped in 3 parts (heavy/bulky items; shipping will exceed $25)

The plans contain 56 pages, color photos, engineering drawings, schematics, a parts list, etc., so this coil can be built for less than the Assembled price (but with several days of work required). All specialized parts are available through us and are fully described on the parts list.

Customer Photo:

See our Page 2 for parts and accessories.

BTC70 - Large Tesla Coil, Assembled and Ready to Use ... $9500.00
BTC7 - Paper Plans ... $20.00
BTC7-D - Downloadable Plans ... $10.00

Micro Mini Mite Tesla Coil
micro mini mite tesla coil Lights Up A 4 Ft Florescent Tube
Without Contact!
  • Radiated Power Experiments
  • Gas Discharge Power Source
  • Electrical Pyrotechnics
  • Jacob's Ladder
  • Generate Ozone
  • Kirlian Photography
  • Plasma Etching
  • Optional HV DC Multiplier
  • Weight: 6.0 oz (+ 2lb adapter)
  • Height: 11" high x 3" square base

Includes a 12 volt 1.5amp step down transformer (wall adapter) for 115 vac operation. Output voltage is between 5000-7000 volts peak- to-peak at about 40kHz. This kit can be modified to perform a number of other projects and experiments with the optional High Voltage Retrofit kit (HVRET1K, below).

MTC30 - Assembled and Tested ... $54.95
MTC3K - Kit/Plans ... $34.95
MTC3 - Paper Plans ... $6.00
MTC3-D - Downloadable Plans ... $3.00

TR220/110/50 - Optional 220V Stepdown Transformer for overseas customers ... $19.95


High Voltage Retrofit
For above MTC30Tesla Coil

Additional parts for our high voltage retrofit kit HVRET1
Allow you to do the following:
  • High Speed Ion motor
  • Force Field
  • Motion Freezing/ Time Quenching
  • Transmission of Charge
  • High Voltage Low Current Power Supply
  • Negative Ion Generator
  • Lightning Generator
  • Ion Wind, Anti Gravity, Air Purification etc
HVRET1K - High Voltage Retrofit Kit & Plans for MTC30 ... $39.95
hvret1k

Mini Tesla Lightning Machine
Tesla Lightning Machine
Video: This was recorded at 60 frames
per second, but the video could not
keep up with the audio. Each "pop"
you hear represents a spark.

This device is intended as an attention getting desk or bar special effects piece. Produces an adjustable repetition of high voltage open-air spark discharges of several cm.

Easy to build Tesla coil produces up to a 50 mm point to point 40,000-volt spark discharges. Spark repetition rate is selectable between a heavy and slow or a fast and light discharge. Sparks are very audible and visual for the small size of this unit.

Operates from a 12-volt battery or a safe 12 volt 300 ma wall adapter (included) to run off wall power. Unit features a built in timer allowing individual adjustment of "off" and "on" times from several seconds to several minutes. Once the "off" and "on" cycling times are set, the unit can be left on as an interesting display.

Excellent action science display project or use as a room desk or bureau piece. Unit includes Off/On, Timer Enable/Disable and Spark Texture Switch. Device is built in a 6 x 2.5 x 2" plastic enclosure. Kit includes all parts with a fully screened printed circuit board.

Assembly: Wire and solder to a printed circuit board with some basic mechanical assembly.

Applications: A conversation piece, special effects prop, office or bar action decoration.

  • 2 to 3" Spark Discharges
  • 12 VDC/115 VAC/battery
  • Safe High Frequencies
  • Adjustable Output

With Adjustable "On and Off" Time Settings

TLITE10 - Assembled and Tested ... $69.95
TLITE1K - Kit/Plans ... $49.95
TLITE1 - Paper Plans ... $5.00
TLITE1-D - Downloadable Plans ... $3.00

TR220/110/50 - Optional 220V Stepdown Transformer for overseas customers ... $19.95


Solid State Tesla Coil and Jacobs Ladder
Run As A Jacob's Ladder
Turns A Normal Light Bulb Into A Spectacular Plasma Display!
Build a Plasma Tornado, Demonstrates Pyrotechnic Effects
hvret1k
 Amazing and bizarre effects!
 Excellent science project!

 

  • Transmits Wireless Energy
  • Noiseless Operation
  • Pyrotechnic Effect
  • Runs on 12VDC/5A Battery or Adapter (not included)
  • Adjustable Frequency
  • Control For Effect

Solid-state Tesla coil using readily available television fly back transformers and operating from 12 volts DC (from either a battery or 115-vac wall adapter, not included). Versatile circuit can be used to make a Jacobs's ladder, plasma tornado, wireless energy demonstration, pyrotechnic electrical display and even turn a normal light bulb into a low-cost plasma globe.

Unit is built onto a plastic channel of 7.25 x 2.5 x 3" with a coil enclosure of 5 x 3.5" diameter. All controls are on an aluminum front panel and include a fuse, power switch and power control. Operation with light loads must be done with caution as open circuit voltage will soar at resonance and cause the output transformer to burn out. When the unit is operated as a Jacob's ladder or connected to a large neon display it may be left on indefinitely. Unit is fully short-circuit protected.

In lightbulb mode, it uses a 5" clear 100W 'DECOR' bulb (not included) which may be found at your local hardware or home decorating store.

Assembly: Wire and soldering to a printed circuit board with some basic mechanical assembly.

Applications: Use as a high frequency high voltage generator for research, conversation piece, special effects prop, and office or bar action decoration.

You provide the power supply from a 12v battery or wall adapter (not included); or you may purchase one of our recommended 12V power supplies, below.

TCL50 - Assembled and Tested ... $119.95
TCL5K - Kit/Plans, includes wound and phased transformer ... $89.95
TCL5 - Paper Plans ... $15.00
TCL5-D Downloadable Plans ... $6.00

Options for 12V DC Power Source (not included):
BAT12/7 - 12VDC Gel Cell Battery, for Field Use ... $29.95
12DC/7 - 115VAC Wall Power to 12VDC@7A ... $39.50

Optional Neon Tubes to demonstrate wireless energy transfer:
NE12U-R - 12" U-shape neon tube (red) ... $19.95
NE12U-G - 12" U-shape neon tube (green) ... $19.95
NE12U-B - 12" U-shape neon tube (blue) ... $19.95
NE12U-W - 12" U-shape neon tube (white) ... $19.95

TR220/110/50 - Optional 220V Stepdown Transformer for overseas customers ... $19.95


Worlds Smallest Tesla Coil
Generate Bolts of Lightning
Crashing Against the Inner Walls of a 5" Lamp!

Smallest Tesla Coil

Smallest Tesla Coil

Great for science fairs and small HV experiments, an attention-getting office or bar action decoration, a conversation piece, or other special effects prop. Produces an adjustable repetition of high voltage open-air spark discharges of up to several cm.

Unit is built into a 3 x 2 x 1" plastic box and is powered by a three wire grounded line cord operating from 110 vac. As a safety measure the output winding is directly connected to the earth grounded green lead of the power cord. This prevents any accidental contact to the 115 vac that could occur by accident or by a circuit fault.

Power and repetition rate are controlled by a combination potentiometer and switch. Output voltage pulses are up to 40 kv at .2 Joules and can be adjusted from a slow to fast pulse rate. Sparks are very audible and visual for the small size of this unit.

  • Generate Up To 40 KV Discharges
  • Experiment With HV Effects
  • Plasma In A Jar, St Elmo's Fire, Corona Etc.
  • Output Discharge Control
  • Small Size 3 in.x 2 in. x 1.5 in.
  • 115V Line Direct Operation

BTC10 - Assembled & Ready To Use ... $54.95
BTC1K - Kit/Plans (Requires Assembly) ... $39.95
BTC1 - Paper Plans ... $7.00
BTC1-D - By Download ... $3.00

TR220/110/50 - Optional 220V Stepdown Transformer for overseas customers ... $19.95


Energy Probe
thermag

Radiant Energy Probe and E-Field Detector

Probe detects E fields produced by electrical activity and other unknown anomalies. Unit uses no batteries or other sources of power. Unit can also provide a three from TESLA coils and similar devices. This probe is used by paranormal researchers as seen on some TV shows.

This device is for detecting strong E fields, like those from plasma globes, tesla coils, ion generators, etc. It is not intended for weak E fields, like those generated by many household items. If you need something to detect household or weaker energy fields, we suggest our IOD40.

The apparatus is electrically balanced and designed in the shape of a wand with a 2 inch brass sphere at its detecting end. The handle is 1” OD x 9” of treated polycarbonate with plated metallic tape wrapped around the ends. A red neon indicator lamp (a standard bulb that should last for years, but can easily be replaced if needed) flashes upon detection and increases as you get closer to the source, or if the source gets stronger.

Probe detects:
  • Potential free energy field locations
  • Electric fields produced by ions sources
  • Dangerous static charges
  • Paranormal and UFO energy fields
  • High frequency radiation
  • Weather phenomena lightning
  • High voltage leakage points
  • Plotting a three dimensional footprint of E-fields of HV sources
  • Detects strange and otherwise unidentifiable sources

This handy unit is easy to use and can check the validity of output energy of various healing machines and other radiating products. It is a must-have product for those working in these energy fields.

ENPROBE10 - Assembled ... $34.95