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
- Circuit toplogies with formulas.
- A wealth of scanned books, especially Deketh.

Food for thought

- Selecting capacitors
- The Cool Sound of Tubes, an IEEE Spectrum Publication.

Schematics

- Dr. Tube: Schematics of other AI products, like the 500 and 700.
- Dimitri has an extensive description of the AI500 (no schematics).
- 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
- SPW components (original transformers)
- 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

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