Electrostore
- Our store has a large selection of electronic surplus parts specializing in high-voltage components and equipment, high power semiconductors, variable power supplies, test equipment, and other scientific/laboratory components.
- http://theelectrostore.com/shopsite_sc/store/html/index.html

Physicsci
- Electronic schematics, high voltage, EM weapons, How to's, lifters, plasma, electromagnetics.
- http://www.physicsci.bravehost.com/

Winding Your Own Induction Coil
- Make a simple HV induction coil. With a TV flyback and other cheap parts.
- http://cyrus.activebill.ca/induction/induction.html

Power Inverters
- Power inverters, transformers, adapters and related equipment.
- http://www.tpub.com/content/inverters/

Interworld Electronics and Computer Industries Inc.
- The company sells a range of high voltage non-inductive resistors and current shunts. Also, sells construction cost estimating software and digitizer tablets.
- http://www.interwld.com/new/hv/power-resistors.htm

High Power Electronic Systems
- Southwest Research Institute offers engineering of pulsed power and high power electromagnetics: RF design, RF test, RF prototype, RF outsource, RF design, pulsed power
- http://www.swri.org/4org/d10/comm/RFE/RFEng/highpowr.htm

Water Resistors
- For High Voltage. Made with copper sulfate.
- http://home.earthlink.net/~jimlux/hv/rwater.htm

Mike's Electric Stuff
- Vintage electronics, valves/tubes, lamps, geissler tubes, historic display devices, High voltage, tesla coils & misc. other science stuff.
- http://www.netcomuk.co.uk/~wwl/electric.html

Sam's Laser FAQ
- HeNe Laser Power Supply Design
- http://www.repairfaq.org/sam/laserhpd.htm

American Power Design
- 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.
- http://www.apowerdesign.com/

High Voltage Generating Circuits
- Sam Goldwasser flyback transformer circuit is available here.
- http://www.misty.com/~don/hv.html