Interesting Links

Forums

• Joelist forum.
• rec.audio newgroups.
• diy.audio.com. forum and links.

General background info

• Tubecad, an internet magazine with a wealth of information.
• Groundloop problems

Food for thought

• Selecting capacitors
• The Cool Sound of Tubes, IEEE Spectrum Publication, but I have some thoughts about the way the transistors are used, which makes the comparison unfair.

Schematics

• Dr. Tube: Schematics of other AI products, like the 500 and 700.
• Mattijs has a lot of schematics on his site.

Tube Data Sheets

• Duncan's Tube Sheets.
• Triode Electronics.
• Frank's data sheets.

Nice tube-related projects

• Cuno's Triode Page, with a lot of 300B info.
• Duncan's place, also contains interesting software.
• Gydotron: a well organized web page with impressive designs.
• Lynn Olson, well known for his Ariel speakers, has some nice material as well.
• Steve Benche's page contains a wealth on technical information.
• Thorsten Loesch, nice backgrounds.
• Triode Dick, creative guy!
• Wim de Haan did some nice projects as well.
• DIY DAC: also have a look to our DAC project.

Component Suppliers

• Acoustic Dimension
• Angela Instruments
• Automatic Electric, transformers.
• Border Partol
• Electron Valve NOS tubes.
• Fust Electronica.
• Jim de Kort
• Kent Electronica
• Lundahl Transformers
• Parts Connexion
• Radio Twenthe
• Thetubestore
• Triode Electronics NOS tubes
• Tubes4all (Rik Stoet)
• Tubeshop (PM components)
• Tubeworld NOS tubes.
• Vacuum State Electronics, also nice schematics

Manufactures

• Audio Note UK
• Audio Note Japan

• JJ Electronics
• Sovtek (New Sensor)
• Svetlana
• Western Electric

Other webpages with links

• Audio Cube: contains both links as well as news.
• Audio Nova, many links, various topics.
• Audio Valve: An impressive page with a lot of links.
• Audiolinks.nl contains a lot of links as well.
• Hear: Dutch links, and 2nd handed stuff for sale.
• Hifi on www: a lot of manufacterer links.
• Hifi.nl: not fully indepedent, 2nd handed stuff for sale.
• Hifi.pagina.nl, dutch links.