→ 6Moons - Audioreviews
Good reviews of audio equipment with even more interesting high res-pictures of the innards.
→ Angela Instruments
Supplier of thousands of hard to find items for musicians and tube audio enthusiasts.
→ Aren's Attic
The finest signals come from a homebrew rig !
→ Audio Life
High-End audio and the search for magic sound
→ Audio and Music Bulletin
Sound Fountain, for audio and music, analog and digital reproduction, audiophile recordings and vintage equipment
→ Conrad NL
Online store for electronic components.
→ Cover Company
Acrylic covers for your turntable. Perfectly assembled and affordable!
→ DIY Audio Projects
Comprehensive site with many projects on DIY Audio, both tube and solid-state.
→ DIY Paradise
Interesting projects by Yeo. Amongst these the best dac Monica..
→ JC Morrison's Blog
Must read! Innovative tube-design by a (almost) living legend in tube-DIY.
→ Jac Music
One stop shop for tube electronics.
→ Picking capacitors
References to distortion and other nonlinear effects produced by passive circuit components, such as capacitors..
Information on how to tune your room.. (Dutch)
→ TAO of Tubes
Follow TAO on his way of enlightment in tube amplifiers and speakers
→ THL Audio
Terminator stop for fine audio parts & supplies
DIY modules, kits and equipment.
→ The Valve Wizzard
Many tube designs explained. Very helpful in understanding these..
→ Thomas Mayer's Vinylsavor
Vacuum tube audio. Concepts, ideas, unusual circuits and tubes, directly heated triodes, LCR RIAA EQ.
TubeJack - How to tube radio's..