Designer of high voltage DC/DC converters. Product offering is from 0.5 Watts to 200 Watts and up to 8000 VDC. Full custom products available.

Southwest Research Institute offers engineering of pulsed power and high power electromagnetics: RF design, RF test, RF prototype, RF outsource, RF design, pulsed power

Sam Goldwasser flyback transformer circuit is available here.

The company sells a range of high voltage non-inductive resistors and current shunts. Also, sells construction cost estimating software and digitizer tablets.

A collection of high voltage electronics, chemistry, and other miscelanious science experiments and tutorials.

Vintage electronics, valves/tubes, lamps, geissler tubes, historic display devices, High voltage, tesla coils & misc. other science stuff.

Non inductive, high voltage resistors from the tiny RT type all the way to multi-megajoule custom assemblies; from Hill Technical, company based in Santa Ana, CA, USA. for RF, Pulsed Power, High Energy, AS Type, SP Type, A Type, Radar, Welding, Laser, Defibrillators, RF Amplifiers, Motor Drives/Controls, EMC, Dummy Loads, Broadcast Transmitters,and Power Conditioning.

Construction plans and detailed description for low cost power inverters for high voltage to power up radio amateur's electron tube transmitters.

Power inverters, transformers, adapters and related equipment.

A capacitor manufacturer in India. Products include wide range of electrolytic capacitors, resin filled capacitors, motor run capacitors, box type capacitors, and fan motor capacitors.

HeNe Laser Power Supply Design

For High Voltage. Made with copper sulfate.

Make a simple HV induction coil. With a TV flyback and other cheap parts.