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Power Supplies - High Voltage, High Frequency


hv hf power supplies


Power Supplies - High Voltage, High Frequency by subcategory:
Plasma Generators
HV Drivers
Gas Discharge Power Supplies
Energy Probe


Please read to fully understand the capabilities & advantages of our power sources for plasma, Nature's 4th state of matter!

Plasma power supplies generate high voltages at high frequency, and are used for applications in the fields of plasma operations and research. These power supplies make possible everyday functions with plasma that otherwise would be almost impossible to perform.

A conventional resistive load is where the electrodes are in direct electrical contact with the material, and power is supplied directly to the gas mixture or target material. This is very similar to a conventional neon tube where both ends are connected, and once the neon ignites it becomes a negative resistance that is practically void of any reactive elements. Operation then simply involves independent control of the voltage, current, and frequency.

These power supplies are used for display devices such as Plasma globes, Jacob's ladders, Tesla coils and other popular special effects, museum displays and attention-getting advertising props. They can power ultrasonic transducers used for cleaning, welding and other functions. They make excellent drivers for high-voltage stacks such as Cockcroft Walton voltage multipliers, Marx generators, arc generators and similar devices, etc.

A complex reactive load is where the electrodes are not in direct contact with the material, but instead the energy to the target material is applied capacitively by plates, cells, curved surfaces or other forms of indirect coupling. This can make it difficult getting the necessary energy into the target material. Tuning out the capacitance of the coupling elements eliminates much of these problems and allows maximum power into the target material. Without being able to tune out the capacitance it would take an insurmountable amount of high-voltage to obtain the same results, and in most cases would be next to impossible. Our plasma power supplies allow the user to eliminate this undesirable effect (this is mathematically explained in the Tech Data download). These power supplies are used for Dielectric Barrier Discharge devices (DBD's), closed Plasma Cells/Containers, and so on.

Operation is made as simple as possible for all applications. When driving a pure resistive load such as for most applications simply involves independent adjustment of the voltage, independent adjustment of the current and frequency to obtain the desired effect. Please contact us if you have any questions.

PVM500-2500 -  Plasma Power Generator for Conventional and Complex Loads
Circuitry produces up to 300 watts with independent voltage, current, and frequency adjustment.


PVM500 Instructions
Duty Cycle Writeup
 Changing The Secondary Transformer
Click Here for Transformer Secondary

This reliable and flexible Plasma Driver will power conventional resistive loads such as plasma devices with internal electrodes, or Jacob’s ladders, voltage multipliers, arc generators, neon tubing and other similar devices that do not require resonant operation.

It will also power complex reactive (resonant) loads by tuning out the external capacitance to efficiently drive the resonant load, allowing high real-power operation of gas displays ionizing and igniting, DBD, chemical, ion, plasma, ozone cells, vessels, transducers and other research functions. To achieve an equivalent effect without the capacitance-tuning property of this power supply would require an extremely high output voltage. Instead, this is accomplished by simple resonance and observation of when the meter indicates the point of capacitance cancellation in complex loads. You will find this device highly valuable in this type of research. Output power may be adjusted from 10 to 300 watts, and it runs on standard 115V AC wall power (or 220 volts with optional step down transformer).

May also be used for sputtering, plasma etching, chemical vapor deposition (CVD) coating, and physical vapor deposition (PVD) coating, electro-chemical reactions, HHO gas production, and many other research functions.

Advanced Circuitry Features: 
  ● Independent voltage control from zero to maximum output 
         Maximum output depends on secondary transformer. For conventional (non-resonant) loads:
         PVM500-4000 = 20kV 18mA peak (40kV pk-pk)
         PVM500-2500 = 15kV 25mA peak (30kV pk-pk)
         PVM500-1000 = 6kV 60mA peak (12kV pk-pk)
         PVM500-560 = 4kV 90mA peak (8kV pk-pk)
  ● Independent current control from 5% to maximum output while maintaining voltage setting using duty cycle function circuitry 
  ● Independent frequency control from 20 kHz to 70 kHz 
  ● Large 3" ammeter monitors AC line current, indicates resonance peaking 
  ● Tune out the capacitance that is often a problem found in indirect capacitive coupling to plasma systems
         Capacitance load range depends on secondary transformer:
         PVM500-4000 = non-resonant loads only 
         PVM500-2500 = best for <50 pfd capacitive (resonant) loads
         PVM500-1000 = best for 5-150 pfd capacitive (resonant) loads
         PVM500-560 = best for 150-1000 pfd capacitive (resonant) loads
  ● Non resonant voltage 0-10kV rms for direct connections to gas vessels with internal electrodes 
  ● Excellent for driving many types of complex loads 
  ● Maximum output power over 300 watts 
  ● Short circuit proof by built-in leakage reactance 
  ● 120vac 50/60 Hz input (240 vac versions available with auto step down transformer, below) 
  ● Can be used to power the smallest to the largest neon/plasma displays 
  ● Measures 7" x 4" x 10" and weighs less than 5 pounds 
  ● BNC jack for monitoring frequency output 
  ● BNC jack for TTL control
PVM500-4000 - Mainly for non-resonant loads where electrodes contact plasma (ex: gas vessels with internal electrodes) ... $594.95
PVM500-2500 - Can be used for non-resonant loads; and for resonant loads it tunes out capacitance up to < 50 pfd ... $594.95
PVM500-1000 - Can be used for non-resonant loads; and for resonant loads it tunes out capacitance 5-150 pfd ... $594.95
PVM500-560 - Can be used for non-resonant loads; and for resonant loads it tunes out capacitance 150-1000 pfd ... $594.95
TR220/110/300 - Optional step-down transformer for international customers operating at 220VAC wall power ... $69.95

Each PVM500 version can tune out capacitive loads with the inductance of the transformer secondary using the 20 to 70 kHz turning range of the unit. Additional transformer secondaries are available for capacitances up to 50pf, 150pf and >1000pf. If you are not familiar with complex circuitry, you can find data in text books or consult with a qualified tech or engineer. If you have an application problem OR have any questions about the use of this device or, if your cell capacitance exceeds the listed ranges, you may contact us.

Please read all data and downloads which explain the important load capabilities and technical features of these versatile devices.

For all tech data and pricing on available potted and unpotted transformer secondaries output coils.

PVM2000 - Higher Powered Versatile Plasma Generator
Powers Non-Resonant Resistive, and Complex Resonant Capacitive Loads. Provides up to 2000 Watts of high frequency plasma energy, tunable from 20k to 70kHz. With independent voltage, frequency and current control. May be custom made to customers requested specifications.

Unit is intended for the experimenter/researcher working in plasma research physics or other similar fields. A certain amount of knowledge helps to effectively operate the unit as in some cases it must be tuned to the output capacitance and resistance of the load. This is basic boilerplate technology to any electronics engineer and may involve simple impedance matching algebraic formulas.

These units may be built to individual customer requirements. The basic unit as described can be modified within limits. Please contact our tech team to discuss any modifications or options you may need for your project.

Please Note: These Units are made to order and may require 4-5 weeks to build.

Basic Features

  • Input: 220V AC - Standard 3 Pin US Plug
  • Included VARIAC provides total power control to the load up to 2kW
  • Voltage control: ~5kV to 50kV pk-pk output. An analog meter shows DC voltage of the power amplifier.
  • Current control: ~10% to 100% output (duty cycle provides adjustable chopped current pulses at a constant voltage). An analog meter shows current to the power amplifier and indicates resonant rises.
  • Frequency control: ~20kHz to 70kHz. A digital meter displays the operating frequency.
  • Frequency adjust control allows a smooth linear adjustment throughout the frequency range
  • Adjustable over-voltage shutdown for those high Q resonant loads that generate high peak voltage powers at resonance. Maximum voltage will depend on your load parameters.
  • The oil-filled transformer is overbuilt to handle high resonant voltage rises, and includes built-in protection circuitry that will shut the system down should the voltage exceed the transformer's insulated rating.
  • The standard transformer tunes out 10 to 200pfd capacitance, but we can build transformers to other capacitive loads; please contact us and specify your requirements.
  • Heavy-duty power switch switches both sides of the fused 220V lines
  • Optional Built-In Timer, on request
  • Power on and fault indicating lamps 
  • Dimensions: power supply = 12-3/4 Width x 9-3/4 depth x 4-3/4 height, VARIAC = 10x10x10", transformer = 16x8x5"
  • Total weight: ~67 lbs
  • Optional variable 50kV load TEST capacitor and air cooled resistor is available for testing. See downloadable data, and contact us for details.


 PVM2000 Instructions

 Tech data on resonant and non resonant applications

PVM2000 - Ready to use for 10-200pfd capacitive loads, includes external variac for total voltage control ... $6995.00
PVM2000TESTCAP - variable capacitor and air cooled resistor available for load testing ... $1200.00


These can be used directly to power plasma and gas displays, creating spectacular eye catching, colorful events for show and entertainment, museums shows, point of purchase or simple neon signs displays. You will find animated, music controlled and many attention getting special effects.

GRADRIV10 - Universal High Voltage Modular Power Supply
Excellent for small voltage multipliers, charging Mark generators, continuous dimming for gas displays and other HV applications

This sweetheart of a circuit has many features that can make it a priceless tool for the high voltage researcher and experimenter. Circuit operates on 11 to 15 volts DC drawing 3 amps under full load allowing portable battery or 115 volts AC via a converter.

Output voltage is a 60 kHz high frequency current that is fully short circuit protected. The high frequency also makes possible low storage energy voltage multiplier stacks for high voltage dc sources as well as being an excellent plasma driver when used direct. Output current is fully adjustable via a control pot.

Unit is excellent for powering neon and all types of gas filled vessels using one or two electrodes or can power objects simply by proximity.

Allows total dimming without pulling of ends away from electrodes.

Provides an even distribution of light along the entire display length down to where discharge appears as a wriggling worm at it's lowest setting...NEAT EFFECT.

It easily retrofits to our voltage multipliers modules providing DC voltages up to 100 kv and currents of up to 0.3 milliampere. The current limiting and control feature make this combination an excellent choice for charging capacitors for low loss charging and 12 volt portable operation.

Module is built on a rugged printed circuit board and is mounted in a plastic channel. Complete with input jack for mating to 2.1mm regulated DC wall adapter and high volt output lead with return ground if needed.

  • Open circuit voltage to 7500 peak at 60 to 125 kHz
  • Short circuit current 10 ma
  • Input: 11 to 15 volts DC at 3 amps fully loaded
  • Adjustable current by duty cycle controlled pulse
  • 7" output leads
  • 12" input leads
  • Compact 7" x 2-1/8" x 1-1/8", weighing less than 5 oz!
  • Easily retrofits to our voltage multipliers
power supply
power supply
GRADRIV10 - Assembled and tested ... $129.95
GRADRIV1K - Kit/Plans ... $69.95
GRADRIV1 - Paper plans ... $8.00
GRADRIV1-D - Downloadable plans ... $4.00

12DC/5AR - Power supply for GRADRIV ... $17.95
12 Volts 5 Amps, Fully Regulated. Operates from 100 to 240 vac input with a standard 3-prong US plug. 3 foot output cable with a 5 mm output plug. Included IEC power cord. CE recognized.

MINIMAX30 -  (NEONX) Series Modules short and open circuit protected

These low-cost, high-voltage sources operate from a 12 volt battery for field use or a wall adapter converter for normal 115 vac use (the appropriate adapters are listed with each unit, if you require a power supply). Virtually indestructible circuitry is open and short circuit protected and will withstand reasonable amounts of EMP. Output is end point grounded and is at a high frequency of 25 to 35 khz. This higher frequency allows easy conversion to high voltage DC sources using voltage multiplier stacks. The direct high frequency output can be used to power plasma and gas discharge display tubes. All models include appropriate input and output leads for easy terminations.

MINIMAX30 (NEONXUL)High Voltage, High Frequency Power Supplies

3kV open circuit at 20ma short circuit (2kV 10ma under load), requiring 12vdc 800ma power (adapter not included). Full short and open circuit protection, suitable for battery operation. Full metal enclosure 2-3/8 x 1-1/2 x 1-1/8" in size with 3-3/16" mounting centers, 7" input leads and 18" output leads. This is an excellent hobby unit as it is virtually indestructible and can be used with a voltage multiplier to generate up to 20kV at 1ma with our 4-stage multiplier (CH20), or 30kV at 0.5 ma with our 8-stage multiplier (CH30) at a low safe current. It is an excellent driver for neon displays of up to eight feet, and this unit is also used as the driver for our HV250 high-voltage DC power supply which produces 25,000 DC volts.

MINIMAX30 Instructions

MINIMAX30 - 3000 Volt Module ... $19.95.

12DC/2AR - 12V/2A regulated wall adapter for MINIMAX30/NEONXUL ... $12.95 


High Voltage, High Frequency Power Supplies

4kV open circuit at 15ma short circuit, requiring 12 vdc at 1 amp. Open frame. 4-1/4" x 1" x 1-3/8". Easily generates 20kV at 1 ma with our five stage multiplier.

MINIMAX40 Instructions

MINIMAX40 - 4000 Volt Module ... $39.95

12DC/2AR - 12V/2A regulated wall adapter for MINIMAX40/NEONX80 ... $12.95     

MINIMAX70 (NEON21)High Voltage, High Frequency Power Supplies

7kV open circuit at 10ma short circuit requiring 12vdc input. Open frame with potted transformer 5 x 1-1/4". Easily generates 30kV at 0.5 ma with our MULTI50 five stage multiplier.

  • Input: 12-14vdc, 1-2 amps (wall adapter sold separately if needed)
  • Output: 7kV open circuit at 10 ma short circuit
  • Open frame with potted transformer 5 x 1-1/4"

MINIMAX70 Instructions

NEON21 - Transformer only, without wall adapter ... $39.95

12DC/2AR - 12V wall adapter for NEON21 (except as noted below) ... $12.95
14DC/1G - 14V special grounded wall adapter for single-ended neon displays ... $19.95
* Use this 14V wall adapter if the NEON21/MINIMAX70 transformer will be used for a single ended NEON GAS display for special effects: this is where the neon tube is powered with only one wire and the return of the energy is via the capacitance of the gas and the surrounding air eventually going to earth ground. This mode absolutely requires the use of our 14DC/1G, a 3-pin internally grounded wall adapter for this capacitive ground current to return back to the power supply source.
NEON21P - Paper Plans ... $5.00
NEON21P-D - Downloadable Plans ... $3.00

MULTI50 - 5 Stage Low Power Voltage Multiplier
Produces approximately 5 times the peak voltage of the above minimax series in open circuit mode. Load current is in the 50 to 200ua range, 5 Stage Low Power Voltage Multiplier

For use with the MINIMAX series, built on a 1.25 x 4" polycarbonate board with discharge limiting resistor. Open assembly is operable as is, but can easily be potted for operation in high humidity conditions.

MULTI50 - Voltage Multiplier ... $39.95


Single Ended or Contactless Gas Discharge Power Supplies

Single ended and current limited are intended for use with one electrode on a capacitive probe for non-contaminating laboratory applications.

These devices are excellent when combined with a Cockcroft Walton voltage multiplier for lossless capacitor charging.

See More of Our Plasma Products Here


Our Smallest Single Ended One Electrode Driver Fits Into a 7/8” Diameter Plastic Tube. Suitable for Plasma Sabers, Musical Neon and Many Other Animated or Stationary Displays.Will fully light a properly made 36” neon tube with only one connection!

Neon Transformers, Neon Power Supplies

Neonizer Instructions

Small finger-sized unit operates from included 12vac 0.2 amp wall adapter. Device will power up a 36" piece of 12 mm thick discharge tube using only one electrode. Open frame construction of 3/4" height x 5/8" width x 3.75" length is easily enclosed for small laboratory applications.

  • Input: 9-12 volts, AC or DC, battery or adapter
  • Output: ~3kv open circuit
  • Plasma saber effect of “flowing light”
  • Great supply for small desktop neon artifacts
  • Simple, safe and indestructible circuitry

NEONIZER - Transformer + Adapter ... $34.95
The NEONIZER includes a wall adapter, but if you need another or a replacement, our 12 volt AC 0.2 amp wall adapter is available:
12VAC/.2 - Wall Adapter for NEONIZER ... $6.95

12-Volt Single-Electrode and Proximity Driver Will Power up to a 14” Plasma Globe and Many Other Neon and Artistic Displays. Make a Plasma Tornado.


PVM12 Instructions

OUTPUT - Variable 1k-20kV (auto-adjust)
FREQUENCY - Variable 20k-50kHz (direct adjust)
CURRENT - Reactance Limited to 20mA

Front panel adjustable output power supply, excellent for driving plasma globes up to 14" in diameter (about 1440 cubic inches) and other similar-sized displays and cells such as our plasma tornado, neon tubing, etc. Single ended driver for gas-filled displays operates from 12 volt input. Variable open circuit voltage of 1k-20kV with short circuit current of 20mA. Frequency is adjustable from 20k to 50kHz and is controlled from the front panel; voltage auto-adjusts to capacitive load & frequency. What you will find in practice is that as you are adjusting the frequency, the display will suddenly "come to life" and get very bright -- this is the peak harmonic resonance of the circuit. There may be other harmonics, but there will be one that is strongest, and you can then fine-adjust this power supply to your desired output.

Unit is built on a metal chassis with plastic cover. Size is 2.75 x 3.25 x 7.5" rectangular with a 12" output lead. The reccommended 12V adapter operates from any wall power (100-240VAC), so both American and international customers can plug this into their wall outlets and be ready to go.

PVM12 - 20kV 30W power supply (includes 12DC/2AR wall adapter) ... $189.95

HV Power Supply, 20kV pk-pk, 20-30mA at 20-60kHz. Designed for Large Single Neon and Gas Artistic Displays up to Four Feet in Diameter Sphere Where the Virtual Ground Return is the Intrinsic Capacitance of the Surroundings.
High Voltage, High Frequency Power Supplies

Powers up to 48" Plasma Globes
Single Electrode Operation

INPUT - 115 VAC at 1-2 amps (plugs directly into wall outlet); 220VAC is also available for overseas use 
OUTPUT - Variable 1-20kv
FREQUENCY - Variable 20-60khz
CURRENT - Reactance Limited to 25 ma
SAFETY - Over Voltage Shutdown Manual Reset
NOTES - Non-Resonant Operation
OPTIONS - Flashing, Sound & Music Control, and Pulsed Duty Cycle Attachments Available on PVM400DELUX

High-powered front panel adjustable output plasma driver operates from 115 or 220 vac and is intended for larger plasma globes up to 48 inches diameter (about 33 cubic feet), or similar-volume plasma columns and large gas filled discharge vessels. (Above this volume, our PVM500 should be used.) Rectangular shaped unit is 2.75" x 4" x 10.25" deep and is built on an aluminum chassis with plastic cover. The front panel holds the fuse, power control adjustment, indicator lamp, and power input cord. The output end is open with a 12" 30kV high voltage wire and 4' grounding lead. Factory set open circuit voltage shutdown protects the transformer from too-light and no-load operation. Internal circuitry protects against short circuits. Open circuit voltage is 20kV pk-pk with a short circuit current of 25 ma load lines at 125 watts of output. The power adjust control varies the frequency from 20 to 60 kHz and controls output. Full load output line current is 1.5 amps.

PVM400 Instructions

PVM400 - 1-20kV 20-60kHz 150W Adjustable Power Supply ... $229.95

PVM400-220 - The PVM400 with 220VAC input (for International Customers) ... $229.95 

PVM400DELUX - with Optional Features to Enhance your Display
Similar to PVM400 but with additional features for those who want to add animation for a special display. Provides many options for the neon artist to dazzle, amaze and captivate the audience.
Powers up to 48" Plasma Globes
Single Electrode Operation

This is the PVM400 with several additional features:
1. This model PVM400DELUX has a built-in controller that allows you to change the display texture over a considerable range. This feature greatly enhances the display effect by controlling the ratio of pulse on to off times. (See the Duty Cycle Writeup for additional information.)
2. Contains a 3.5 mm audio jack that accepts a 5 volt level, allowing the unit to flash to any external source.
3. Excellent effect when activated in coincidence to the base beat of any music system when using our BASEBEAT10 as shown below.
4. Unit can be made to flash at a 50/50 rate from 1 to 30 flashes per second with the below FLASH10.

PVM400DELUX Instructions
Duty Cycle Writeup

PVM400DELUX - PVM400 Deluxe Version with Control Feature Options ... $299.95

TR220/110/300 - Optional 220V/50Hz Step Down Transformer With European Plug for international customers ... $69.95
Neon control modules. We have 3 different modules that can control the neon transformer output. The BaseBeat module dynamically responds to music, with adjustable patterns, sensitivity, and duration of output. The Flasher module has the traditional on/off cycle, adjustable from 10 cycles per second to one cycle per 5 seconds, and able to control 1 or 2 transformers.
BASEBEAT10 - BaseBeat Module
Musical light flasher responds to the beat of the music. Great visual aid to any band or home music sound system. Neat effect when using our DC75 under-car neon transformer.
BASEBEAT Instructions
ATTENTION Music Lovers!
  • Makes neon lights flash to the musical base beats
  • Neat action display
  • Great addon to existing music systems

Interfaces with our PVM400DELUX transformer (or any transformer with an audio/animation control input) and can control a large display of neon tubing to flash along with the base beat of the music.

Great for bars, clubs, concerts, bedrooms, living rooms -- anywhere music is played and you would like a neat visual effect. Ready to use and easy to operate, just connect to any audio output and adjust for effect.

BASEBEAT10 - Ready to Use ... $110.95
FLASH10 - Flasher Module
Great attention getting and special effects. Flash two displays in anti-coincidence. Use with our DC75 auto neon and any transformer with a control lead. Neat effect for under-car neon.

Flashes a single PVM400DELUX, or two in anti-coincidence -- that is, one "off" the other "on" and reversing. Mating plugs fit into the PVM400DELUX unit. Adjustable flash rate.

Shown as board-level, and operates from included 12 volt wall adapter. Sold in a plastic channel with adapter wired in and two mating plugs for our PVM400DELUX.

FLASH10 - Ready to Use ... $29.95

ENPROBE10  - Energy Probe

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 dimensional output "footprint" of medical healing machines such as LAKHOVSKY coils, High voltage generators, Ion machines, Dangerous lightning levels, Power line E field gradients, High frequency radiation 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