A Perfect Balance of Power and Performance: Featuring an elegant yet extremely powerful design, the 2017 Zeusaphone Z-75 Musical Tesla coil is truly the most remarkably well balanced Tesla coil we have ever produced. While capable of effortlessly producing intense white-hot electrical arcs reaching up to 75 inches long, it can also run for longer than normal amounts of time due to the extremely efficient nature of its design. With over 6 feet of beautiful streaming high voltage blasting through the air in amazing audio fidelity, the amazing effects created by this machine are truly incredible to behold. Demo Videos: Museum Quality Construction: This model has been featured in such prestigious institutions as the Telus World of Science in Vancouver, British Columbia and the Science Center AHHAA Foundation in Estonia. With over 18 years' experience building a countless number of Tesla coils, we have been able to refine and enhance our designs over the years to produce the best products available anywhere. Offering Tesla coils since 2002 and musical coils since 2007, you will never find a more impressive and professional Tesla coil than the original ZeusaphoneTM musical Tesla coil by Zeusaphone LLC. Compact and Portable System Design: Standing at just 42 inches tall, The Z-75's massive arcs reaching 75 inches in length look insane compared to the overall system size. By maximizing efficiency with our custom designed electronics, we've packed the arcs of a much larger, heavier system into a more compact and beautifully designed machine. Having a base diameter of just 18 inches and a little over 30 lbs, the Z-75 was designed to be both compact and easily transportable. The secondary coil and toroid quickly and easily disassemble from the base, and separate industrial-grade variable transformer and electronic controls make this system easy to setup and move around. Dual Channel Musical Controller with Pulse Frequency Generator: Included with this system is the Z2MIDI dual-channel Musical Tesla Coil Controller! Accepting dual-channel input from MIDI devices, this controller is capable of playing two notes at the same time! Just plug in any standard MIDI keyboard to start playing live music. With use of the bonus MIDI to USB adapter, you can also play prerecorded musical files directly from a laptop computer. The range of MIDI notes possible ranges from 80HZ up to an amazing 900HZ! (Playing analog files, such as through an .mp3 player, is not physically possible because amplification of this wider range of frequencies results in very short, fat, flame like sparks that are not nearly as exciting to watch.) In addition to musical functions, you can also use the Z-75 like a regular Tesla coil in non-musical mode. It is actually even better than a regular coil in its non-musical functions, because you can smoothly adjust the pulse frequency with the turn of a dial in the range of 100-500 HZ! Variable Spark Length Control: Did we mention this coil features arc length control? Almost all Tesla coils out there only have one power setting: full blast on. Others offer crude adjustment only, via cheap pulse-width controls on an electronic controller. This results in dangerous operation and poor quality of the overall sound produced. On the other hand, included with our system is an industrial grade variable power transformer for high precision spark length control! This allows control the voltage input, allowing you to slowly bring up the sparks to full power with the simple turn of a dial. This also allows for operation at lower power input levels, ideal for use with up close experiments. Superior Control Electronics: Over-current prevention circuits, interference-free primary current feedback and soft-switching synchronization logic provide a foundation for stable, reliable performance. Worries about damage to the system via strikes to the primary coil might be a concern with some systems, but not ours! High voltage returning to the primary circuit is safely routed to ground through heavy duty polypropylene film caps. Robust Power Electronics: The heavy duty power switching of the Zeusaphone Z-75 is handled with ease by an extremely robust 1.2kV 600 peak amp IGBT module. Forget about wimpy discrete IGBTs. These top of the line modules are the most reliable power switching components available today. A beefy aluminum heatsink and fan assembly keeps things running cool throughout operation. Clever integration of Schottkey, TVS diodes, and a precisely matched gate drive transformer drives the optimal functionality to provide excellent results and preventing overload. Robust DC blocking caps ensure long run times are possible. The H-bridge is powered by full-wave rectified DC voltage doubler, with generous electrolytic capacitance to provide smooth quality sound, even under high musical load. Features and Specifications: -Museum-quality construction in crystal clear polycarbonate. -Amazing electrical arcs up to 75" (Over 6 foot long arcs!) This outstanding performance is all possible do its unparalleled design, top quality components and precise expert tuning! -600 peak amp IGBT brick module- These top of the line modules are the most reliable power switching components available today. A beefy heatsink/fan assembly keeps things running cool throughout long run times. -Huge .45uF Cornell Dubilier MMC bank, utilizing the highest quality 942 series capacitors available. -25.5" x6.5" high inductance secondary coil, tightly wound with over 2000 turns of heavily insulated pure copper magnet wire, further coated with several coats of unbelievably thick and durable EPOXY resin coating.  -High-current copper spiral primary coil- The primary coil was built with extreme care to yield a perfect spiral form. 3/8" copper tubing provides awesome current handling ability and maximum energy transfer. -Our uniquely designed 18"x6" copper spiral toroid. looks awesome and performs amazingly well! -Dual Channel MIDI Musical Controller-capable of playing two notes at the same time from 100-900HZ! Includes a bonus USB to MIDI adapter to play files from a laptop! -Frequency/pulse-width generator- Provides variable adjustment of break rates from 80-500 HZ (BPS), as well as separate pulse-width control for spark current. -Includes additional variable power transformer- Allows for slowly bringing arcs up to maximum power, a very useful feature, in addition to allowing for low power experiments! -Extremely high output voltage of approximately 700,000 volts !!! Quality Guaranteed: We have been offering high quality Tesla coils like these on eBay since 2002, and know what it takes to deliver quality and customer satisfaction. In the past, our products have been used in museums, TV shows, conventions, concerts, theatrical productions, haunted houses, independent films, scientific research projects, college demonstrations, corporate promotions and a host of other fun stuff. All of our products are constructed with great care, using only the best, most reliable new components available. We back our products with a one-year warranty protecting against any functional defect. Terms of Sale: IMPORTANT! PLEASE READ BEFORE BUYING! -Must be 18 years or older to purchase. -Indemnification: Measures have been taken to ensure a high quality product; however, this system can be potentially dangerous if used improperly. By purchasing this equipment, the purchasing party agrees to take personal responsibility for its use and hold Zeusaphone LLC harmless for any loss, injury, death or damages arising from the use or misuse of its products. -Construction Time: Please note, it will take 2-3 weeks following submission of your payment before this system will be shipped out, as systems are produced as orders come in. The actual product will arrive in high quality form as pictured or your money back! International Shipping Available! If you live outside the US, in Alaska or Hawaii, please contact first before purchasing. Shipping options are complicated and eBay is not able to adequately list the information in their automated system. Customs and import fees will also be applied separately from your country.