Burle Industries, Inc.  
   Manufacturer and supplier of specialized electron tubes and electro-optic products.
   http://www.burle.com/

Almost All Digital Electronics  
   Hobby kits, assembled units and software for electronics hobbyists, engineers and radio amateurs.
   http://aade.com/

Electron Tubes for Industry  
   Vacuum (electron) tubes for audio, broadcast, ham radio, hobby, industrial, academic and scientific users.
   http://www.elexs.com/

Powerwerx.com  
   Anderson powerpoles and OEM power connectors for amateur radio and other DC Hobbies. Also, batteries, RF adapters, bulk wire, red/black zip cord.
   http://www.powerwerx.com/

Quality Kits  
   Components and kits for audio, RF, digital, and antenna projects.
   http://www.qkits.com/

Cardwell Condenser Corporation  
   E.F. Johnson and Hammarlund air variable capacitors, inductors, and other electronic hardware.
   http://www.cardwellcondenser.com/

Jackson Harbor Press  
   Ham radio related kits and chips such as Morse code keyers.
   http://jacksonharbor.home.att.net/ham.htm

NHRC Repeater Controllers  
   Repeater controllers and related accessories for amateur and land-mobile radios. Order by mail or phone.
   http://www.nhrc.net/

EzATV  
   Amateur TV transmitters, receivers, and accessories for ham radio operators. List of dealers and distributors, online ordering.
   http://www.4atv.com/

SHF Microwave Parts Company  
   Microwave and RF parts for datalinks, television, voice, and telemetry.
   http://www.shfmicro.com/

Sphere Research Test Equipment  
   New and used electronic test equipment, tubes, semiconductors, RF and microwave products, and sliderules.
   http://www.sphere.bc.ca/test/

Electronic Rainbow  
   Electronic kits for the hobbyist, education, industry, detective operations, and law enforcement. Includes CB sound, radio direction finder, and ham caller id kits.
   http://www.rainbowkits.com/index.html

Ramsey Electronics  
   Hobby kits, amateur radio gear, antennas, AM/FM broadcasters, security and monitoring cameras, test equipment, and tools. Downloadable catalog [PDF], FCC information, and forums.
   http://www.ramseyelectronics.com/

Sherwood Engineering Inc.  
   Kits, components, and custom IF filter enhancements for most communications receivers.
   http://www.sherweng.com/

N9TEW Tube Sales  
   Vacuum tubes for ham, audio and antique radio purposes.
   http://www.hamtubes.com/tubes/

DWM Communications  
   Radio kits, including a wide band active antenna, outdoor shortwave antennas, ham radio QRP transmitter, and an antenna tuner.
   http://www.qth.com/dwm/

North Country Radio  
   Kits, including transmitters and receivers. Technical articles and information on electronic subjects geared towards ham radio, shortwave and video projects.
   http://www.northcountryradio.com/

Circuits on Web  
   Electronics kits, projects and component for hobbyist and radio amateurs.
   http://www.circuitsonweb.com/

Progressive Concepts  
   Manufacturer and distributor of broadcast electronic products.
   http://www.progressive-concepts.com

Transel Corporation  
   Manufactures and sells communication equipment and spare parts. Includes online catalog, prices and shopping cart.
   http://transeltech.com

Mini-Kits  
   Electronic kits and components. From Australia.
   http://www.minikits.com.au/index.html

Ocean State Electronics  
   New and hard to find electronic components, kits, test equipment, and accessories..
   http://www.oselectronics.com/

ESKA Crystals  
   Supplier of quartz crystals, oscillators and filters, both discrete and SMD versions.
   http://www.eska.dk/

International Radio  
   Offers crystals and custom designed and after market crystal filters.
   http://www.qth.com/inrad/

BA1404 Chips for Sale  
   Sells hard-to-find BA1404 chip for low-power FM broadcast band radio transmitter projects. Includes links to low-power FM broadcasting resources.
   http://www.radiochips.com/

ApogeeKits  
   Electronic kits, tools, instruments, and free tutorials.
   http://www.apogeekits.com/

SS Tran  
   Sells the AMT3000 Broadcast Transmitter Kit, a Part 15 low-power AM radio broadcast transmitter. Includes details and background information, specifications, contact and purchasing information.
   http://sstran.com/

Pea Ridge Radio  
   Old time crystal radio kits, double sliders, and detector sets.
   http://www.ecrystalradio.com