Vacuum Tube Shop
- Offers a range of vacuum, radio and electron tube, electron valve, and transistor amplifiers.
- http://www.vacuum-tube-shop.com

Triode Electronics
- Sells tubes and parts for home audio, radio, guitar and tube data and amp schematics.
- http://www.triodestore.com

Tubesdirect
- Offers hard to find guitar and hi-fi tubes.
- http://www.tubesdirect.com

The New Tube
- Sells components including tubes, sockets and transformers.
- http://www.newtube.com

Leeds Electronics
- NOS tubes, ballast tubes, time delay relays, tube sockets, and thousands of other types of parts.
- http://www.leedselect.com

GS Tubes
- Offers tubes for home audio and amateur radio.
- http://www.gstube.com

Eurotubes
- Importer and retailer of a variety of European vacuum tubes.
- http://www.eurotubes.com

Electronic Valve and Tube Company
- Australian supplier of NOS and current production valves, tubes, transformers, capacitors, tube books and associated parts.
- http://www.evatco.com.au

Electron Tubes
- Supply electron tubes and valves.
- http://www.halfin.com/shop

Audiotubes
- Brent Jessee recording tube sales and information. Provides data and articles.
- http://www.audiotubes.com

Audiolamp
- Sells tube and their parts. Provides technical information.
- http://www.audiolamp.com/

ATSI Advantage Tube Services
- Offers various vacuum and electron tubes for audiophile and hobbyist.
- http://vacuumtubeaudio.com/