Commercial Sources

• Capacitors
• Materials
• Spark Gaps and Parts
• Top Loads
• Transformers

• Electrotherapy Museum  - Records the technical specification of vintage devices such as carbon arc lamps, static electric machines and resonance instruments. Includes articles on Tesla components and technologies.
• HVFX  - Performs voltage stunts and installation of lightning effects for various purposes including educational demonstrations and media presentations. Also permits renting of its available equipment.
• Legion Electronics  - Fabricates custom Tesla coils for specific requirements. Also renders servicing for safety inspection and consultation of design schemes.
• Mega Volt  - Installs lightning generators to create special effects by assembling high voltage Tesla coils capable of electrical explosion. Indicates technical references for its devices.
• Resonance Research Corporation  - Instrumentation firm that conducts exhibitions to showcase crackle tubes, plasma balls, lightning generators and Tesla coils with high voltage.
• Tesla Systems Research Inc.  - Specialist in manufacturing equipment with high voltage characteristics built for museums and academic institutions that require the device for special effects and educational demonstrations.
• Tesla Technology Research  - Electrical firm involved in designing and producing Tesla coils and component parts. Available for assembly and consultation services as well.