DIY Project

  Tossie Yamanaka    (Japan)
Yasuyuki Ishiyama   (Japan)
  Duncan Munro (USA)
  Klaus Boehm  (Germany)
  Glass Ware   (USA)
  Direct Heating (Japan)
  Fidelisaudio   (USA)
  Steve Bench (USA)
  Dan Hiedelbrad  (USA)
  Matthias Brennwald (Switzerland)
Tetsu Kimura (Japan)
Jaehong Lee (Korea)
Mattijs de Vries (Holland)
Jim de Kort (Holland)
Bert Molenkamp (Holland)
Jukka Tolonen (Finland)
Finn Hammers (Denmark)
Magnus Kesselmark (Sweden)
André Jute (Ireland)
Andrea Ciuffoli (Italy)
Alessandro Coppi (Italy)
  Stéphane Puechmorel Site 1 & Site 2 (France)
Julien (France)
Edwin Paij (Belgium)
Talisker (Germany)
Ulrich Haumann (Germany)
Klaus Schiffer (Germany)
FriHu (Germany)
Griffon Valve Pages (UK)
Adrian Clark Quad page (UK)
Chris Brady (USA)
Evacuated Envelopes (USA)
Ampage (USA)
Dan Cheever (USA)
Tube Dude (USA)
Pats Tube Schematics (USA)
Ed Billeci (USA)
Kevin Kennedy (USA)
Bob Danielak (USA)
Craig Stark (USA)
Larry Roe (USA)
SDS Labs (USA)
Chris Beck (USA)
JC. Morisson
Chris's Tube Heaven   USA
Bjorn Aaholm  (Denmark)
Claudio Bonavolta (Swiss)
Tim Reese (USA)
DHT Data From Hong Kong
Chris' Tube Heaven
Single Ended Triode Link Pages
Lowther America Fan Club   (USA)
Emission Lab
Tube ComparisonTable (Japan)

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