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CONVENTIONAL NEON SIGN TRANSFORMERS : Current Limited 30 and 60 ma Designed and built for use in neon lighting applications
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Unused but may require our SUP10 Suppressor Circuit shown when used for TESLA COILS. May also be used for JACOBS LADDER displays without suppression circuits. Great for high voltage supplies. Many available voltages at the standard 60 ma. values. These units do not have GFI s. Most in original boxes.
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Current-Limited NEON SIGN Transformer at 30ma
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Centerpoint grounded secondary, current limited, encased unit with screw terminals. All connections are internal: remove cover to access, then push out a metal chad according to your location preference for running the input and output wires. This transformer is excellent for small table top Tesla coils. Dimensions: 10.75" (12.5" at feet) x 4" x 6.5” with a weight of 17lbs.
| Please note: this transformer has the 6KV 30mA output required by our BTC30 tesla coil, but it is physically too tall to fit into the base area. The height of the BTC30 base area could be increased, however that is a modification you would need to undertake. |
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| Shipping weight may exceed the website estimate -- we will contact you if any additional amount is required. |
| Current-Limited NEON SIGN Transformer at 60ma |
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Designed and built for use in neon lighting applications. Unused but may require our SUP10 Suppressor shown in our store for reliable operation. May also be used for JACOBS LADDER displays without suppression circuits. Great for high voltage supplies. Many available voltages at the standard 60 ma. values. These units do not have GFI s. Most in original boxes.
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5000 volt 60ma will generte almost 1.5 foot streamers in a properly designed TESLA coil system.
This transformer can produce over a 1” impressive flaming hot arc when used for a Jacobs ladder.
Use for DC power supply Full Br 5kv60ma / Half Br 2.5kv120ma using our VG15KV200 rectifiers
Two styles to choose from Original ALLISON and MAGTEC Sizes
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4000 volt 60ma will generate almost 1 foot streamers in a properly designed small TESLA coil .
This transformer can produce an impressive flaming hot arc when used for a small Jacobs ladder.
Use for DC power supply Full Br 4kv60ma / Half Br 2kv120ma using our VG15KV200 rectifiers
Original ALLISON Size
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3000 volt 60ma will generate impressive streamers in a small TESLA coil suitable as a desk piece
Can produce a traveling arc when used for a small Jacobs ladder but may be finicky to set up.
Use for DC power supply Full Br 3kv60ma / Half Br 1.5kv120ma using our VG15KV200 rectifiers
Original ALLISON Size
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All purchases include our BTC3 Tesla coil plans and a secondary protection circuitry schematic when used for TESLA COILS as suggested by the late DC COX of RESONANCE RESEARCH. The 60 milliampere transformers will require down loading our hazardous equipment affidavit
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| 30ma and 60ma limited amount Neon Sign Transformers |
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Designed and built for use in neon lighting applications. Unused but may require our SUP10 Suppressor shown in our store for reliable operation. May also be used for JACOBS LADDER displays without suppression circuits. Great for high voltage supplies. Less display than above 60ma units but safer to use. These units do not have GFI's. Most in original boxes
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You must call to order these as limited 603-673-4730
Order-4KV/30-1 MAGTEK…………………….$34.95
Order-7.5KV/60-2 MAGTEK………………….$74.95
Order-9KV/30-1 ALL…………………………….$69.95
Order-9KV/60-2 ALL…………………………….$99.95
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| Pole Transformer 3kVA to 25kVA at 14kv for High Powered Tesla Coils and Other Applications |
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Heavy duty 14.4kV (very conservatively rated), 1- or 2-bushing oil filled unit, running on 120/240VAC input. Good for Tesla Coils, up to 20 ft. discharges! Great for many other scientific experiments and industrial applications. Sold only to qualified researchers and labs.
DANGEROUS PRODUCT -- CAN CAUSE ELECTROCUTION IF IMPROPERLY HANDLED
A Hazardous Equipment Affidavit must be signed before these items can be released (see link below).
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| Please contact us for current pricing and availability, or for any other questions on these items. |
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| Air Cooled Two Point Spark Gap for Tesla Coils up to 8’ Sparks |
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Excellent for Tesla Coils up to 48" Discharges
Intended for Tesla coils power up to 15Kv at 180ma. Available with 3/8" machined tool steel or pure tungsten electrodes. Functions at 60 to 100 breaks/second. There are 3 electrodes: the 1 center electrode is 2.5" length; the 2 side electrodes are each 2" length. 115 Vac is required for the high output fan. Ready to use with connection lugs. Size is 5 x 5 x 4". Our BTC40, 50, and 60 use this setup.
Use two in series for a four point gap for Tesla power up to 15kV at 400ma producing up to 15’ sparks. Our BTC70 uses this setup.
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| Convection Cooled Single Gap System for Small Coils With power to 8Kv at 60ma |
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Excellent for Tesla Coils up to 12"
Intended for Tesla coils up to 9kV at 60ma. Uses ¼" pure tungsten electrodes mounted on aluminum heat dissipating fins. Horizontal retaining screws provide easier access and adjustment of spark gap width. Base is polycarbonate with mounting holes. Includes high current connection lugs. Size is 5½" x 2 x 2". Used in our BTC30 giving 14” sparks.
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| 1/4" x 1" Pure Tungsten Electrodes Coils up 7500 v 60 ma |
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With connecting mounting blocks and terminations, or individual tungsten rods only Precision machined and faced. Self cleaning and cool running, will not oxidize. May be connected in series for multiple gaps handling greater power
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| 3/8” x 2” Pure Tungsten Electrodes 15000 v 120 ma |
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With connecting mounting blocks and terminations, or individual tungsten rods only Precision machined and faced. Self cleaning and cool running, will not oxidize. May be connected in series for multiple gaps handling greater power
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| Specialized Capacitors for High Power Tesla Coils |
These highly reliable capacitors are for museum displays, research, and professional applications where reliability is a premium. There are lower cost alternatives that use MMC and other options for this part, and these less costly choices are perfectly suitable for the hobbyist and experimenter. But when reliability matters, these are the capacitors to use.
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These specialized capacitors are made for Tesla coil applications where high frequency and high current operation is required.
Capacitors are constructed with a polypropylene dielectric being specially wound to reduce corona and have a high voltage standoff capability. Capacitors are also designed to withstand the multiple discharges of a rotary gap system of up to 600 breaks per second with a suggested operating frequency of 30 kHz.
(Please note that the "10KV Max" printed on the shell refers to the shell strength: this is the maximum hit the shell can withstand if a high-voltage component were to discharge directly through the shell. But the label on the capacitor shows the maximum operating voltage that the capacitor will safely handle when it is properly connected & voltage discharges through the end terminals as intended.)
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Capacitors are enclosed in a high impact PVC tubing and epoxy sealed with axially positioned terminals. Several values are available to match with transformer input. (For example, the .05u/20KVAC provides an excellent combination when used with the readily available 14.4 kvac pole transformer in the 7 to 10 kva range. One capacitor will utilize one half this kva range while two in parallel with utilize the full rating and produce in excess of 16-20 foot discharges.)
We use these capacitors in our tesla coils, such as the .014u/20KVAC in our BTC30 tesla coil. Many other values are available; please contact us if you need a specific design for a custom coil or other application.
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| Tesla Coil Low Cost MMC Capacitors |
| Intended for the hobbyist and applications with stringent reliability factors. These capacitors were tested along with the equivalent CDE unit many builders are now using. We found no difference in performance or operation either for spark or the primary capacitor for DRSSTC high powered coils. |
 Individual 1.5u 2kv MMC Capacitor  Example of a 15-Capacitor Array |
TESTING AND COMPARING THE CDE and the AMAZING1 CAPACITORS
Our .15ufd 2000volt metallized polypropylene film and film foil capacitors are built into a rectangular enclosure and fully potted. The value of this capacitor is identical to the Cornell Dubilier 942C20P15K-F. When tested against this part, it was found that they performed identically. There were no breakdowns in either capacitor when used in similar circuits. We than ran both capacitor modules by reducing the number in series and keeping the spark gap voltage the same (6000V RMS AC 60Hz 30mA), to find out when breakdown would occur. We did this with 10 units of each, and there was no statistical difference between this capacitor and the CDE in the breakdown and failure points. We were very pleased at the outcome and performance of these capacitors. NOTE that the volume of this capacitor is 50cm2, whereas the CDE is 31cm2.
MERITS OF OUR .15u/2KVAMZ1 CAPACITOR DESIGN
Our capacitors are built into a rectangular enclosure of PVC 4.3cm x 3.3cm x 3.5cm with a wall thickness in excess of 1/16 inch. They are completely potted with the leads exiting at the top of the epoxy very close to the ends. This makes it very convenient when attaching these capacitors in a series configuration by simply parallel connecting the 18 gauge leads, therefore doubling up on the conductance of the connections and greatly simplifying the attachment process. The capacitors can be mounted on a flat piece of PVC or other substrate and do not require holes drilled and the long lead legs like when using the axial CDE capacitors. This in itself reduces the assembly time and greatly improves the quality and aesthetics of the completed module. Voltage balancing resistors are now easily connected to the assembly to finish it off. You have the option of gluing the capacitors in place or securing them with nylon tie wraps, tape, or similar. You can then parallel the rows: as an example, 15 capacitors can be mounted in series in three rows of five each and make for a nice compact good-looking package as seen in the photo. So far the first batch 1500 pieces went out in july and so far no failures reported other than some minor assembly problems that were quickly quelled
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| Fully Prepared Secondary Coils |
Wound, Coated, and Ready to Use
All coil forms used are thin wall TYPE1 PVC and before winding are cleaned inside and out with a suitable solvent. They are then placed in a special vacuum chamber that will accommodate up to 10 coils (depending on size of course). This chamber is fitted with 10 microwave magnetron's properly spaced to provide homogenous heating to the PVC driving out the moisture with the vacuum system pumping it out. We find this method appears to enhance performance but we have no real documentation to make comparisons with. We feel it's a good start.
The form is then given a coat of polyurethane and wound on our programmable auto feed. Wire used in a heavy thermalize (optional colors of gold, red, green, and blue are available) Several coats of polyurethane each coat allowing to fully dry before the application of the next coat is applied.
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BTC3COIL: 13" high, 3.5" diameter, 1/8 thick low-loss treated PVC. Wound with #24 heavy magnet wire with 443 turns. Inherent resonant frequency is ~500kHz freestanding without terminal.
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BTC4COIL: 20.5" high, 4-5/8" diameter, 1/8 thick low-loss treated PVC. Wound with #24 heavy magnet wire with 780 turns. Inherent resonant frequency is ~200kHz freestanding without terminal.
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BTC5COIL: 21.5" high, 4-1/4" diameter, 1/8 thick low-loss treated PVC. Wound with #22 heavy magnet wire with 650 turns. Inherent resonant frequency is ~150kHz freestanding without terminal.
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BTC6COIL: 36" total height 29 1/2" of turns, 6 1/4" diameter, 1/4 thick low-loss treated PVC, 1100 turns #22.
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BTC7COIL: 48" total height, 28" of turns, 8-5/8" diameter, 1/4 thick low-loss treated PVC. Wound with #18 heavy magnet wire with 1000 turns.
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| Whirling Spinner for Tesla Coils |
Place this spinner on top of your tesla coil (works on core & coil, solid state, and vacuum tesla coils alike) and watch the sparks shoot out of the tips of the spinner as it begins to turn. Since the electrons are mutually repelled from each other, this forces them to travel down the arms and be emitted at the pointed ends, causing this well-balanced rotor to spin at increasing speeds, emanating sparks as it goes.
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| A fun accessory for your tesla coil! |
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Brand new and unused power triode vacuum tubes for our VACTESLA10 vacuum tube tesla coil. (The 833C carbon vacuum tubes can withstand higher operating temperatures than the standard metal-based 833A vacuum tubes.)
This vacuum tube is used in our VACTESLA10 tesla coil, and it is listed here if a replacement is needed, or if you are making your own vacuum tube tesla coil. Dimensions are 8.75" height x 4.5" outer diameter.
| Please note: these glass items are fragile and therefore cannot be refunded or returned -- all sales of this item are final. If there is damage upon receipt, you will need to file an insurance claim with the shipping company (approximately 1 in 100 orders are damaged from shipping). Please be aware of these limitations and requirements before ordering this item. |
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| High Power IGBT (Insulated Gate Bipolar Transistors) 1200A 1700V |
| Used but tested to full specs. Extras from a US NAVY contract that originally required 500 peices. |
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High power 600A 1200V dual switch, or highest power 1200A 1700V dual switch.
Each of the FF600R12KE3 modules contains two 600 amp 1200 volt IGBTs intended for use in a half-bridge circuit (the FF1200R17KE3 has two 1200 amp 1700 volt IGBTs), or use two modules for a full bridge. These devices are full-spec tested units that normally cost well over $1500 each! ($2000 for the FF1200R17KE3) We have a limited amount obtained from an inventory buyout. They can be used for ultra-large TESLA coils, capacitor discharge pulsers, infrasonic ground shakers, segmented rail and coil guns, motor control, power control and many other high-powered applications.
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| Siemens IGBT 300A 1200V With diode. |
| Use 2 pieces in a half or 4 in a full bridge for a spectacular DRSST Solid State Tesla Coil |
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| 60A 600V Semiconductor FET. |
| Great for medium-power DRSST Solid State Tesla Coils |
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60A 600V
Includes mounting hardware.
A good replacement for the discontinued Fairchild HGT1N40N60A4D semiconductor FET. We use 4 of these in our QUASAR60 solid state tesla coil.
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