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Universal High Voltage Modular Power Supply (Downloadable Plans)

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Product Description

Continuous-Range Neon Driver: this dimmable neon power supply allows full range dimming without display ever pulling apart! A very interesting eye-catching effect.

Can be set to draw a very low input current, great for extended battery or solar powered 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 use, or can be run on 115 volts AC with a wall adapter.

These are paper plans, requiring parts and assembly (also available as downloadable plans for roughly half the price).


Module is built on a rugged printed circuit board and is mounted in a plastic channel. Complete with input jack for mating to 2.5mm regulated DC wall adapter and high volt output lead with return ground if needed.

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 becomes so dim it is almost invisible, at which point the discharge looks like a wiggling worm...NEAT EFFECT!

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.

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.

GRADRIV10 Instructions

  • Open circuit voltage to 7500 peak at 60 to 125 kHz
  • Drives up to a 15 ft display
  • Short circuit current: 15 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!


12DC/4AR - Power supply for GRADRIV
12 Volts 4 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.


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