Technical Information

Application Notes

 
High Voltage Power Supply Design (1) Application Note 1
High Voltage Power Supply Design (2) Application Note 2
The White Spark Problem Application Note 5
Center tapped heaters (V4 tubes) Application Note 6
(In preparation) Designing with the 20B tube Application Note 7
Control Grid Voltage Measurement Methods Application Note 8
Power Supply Design Application Note 9
Recommendations for output transformers Application Note 10
Upgrade a 300B tube Application Note 11
   

Techical Bulletins

 
Getter Materials Techical Bulletin 1
Filament Quality Techical Bulletin 2
Current Source Supply for the Filament Techical Bulletin 3
Mains Voltage problems and solutions Techical Bulletin 4
Heater Voltage vs. Tube life Techical Bulletin 5
PX4 Confusion after 90 years resolved Techical Bulletin 6
How to test EML tubes Techical Bulletin 8
Why DC heated tubes can still hum Techical Bulletin 9
Lifetime of the 45 tube - an amazing result Techical Bulletin 10
What makes good "tube sound"?  
   

Product Reviews

 
EML2A3-Mesh on the 2A3 Maniac Blog
EML20A, EML300B, EML5U4G in COLOTUBE amplifier (on 6moons)
EML20B in AMARE MUSICA 'Entropy' amplifier (on 6moons)
EML30A in Trafomatic TARA Amplifier (on Trafomatic site)
EML30 in AMERE MUSICA Amplifier (on 6moons)
EML45 in Yamamoto A08-S (on 6moons)
EML45 compare vs Fullmusic and NOS (on 6moons)
EML45 by Trafomatic (on Trafomatic site)
EML45 in Balancing Act (on head-Fi Forum)
EML45 in FI stereo prototype (on 6moons)
EML45B by DHT Rob  
EML45 Test, by Srajan Eban (on 6moons)
EML45 Test by Micheal Lavorgna (on 6moons)
EML300B in Border Patrol Amplifier (on 6moons)
EML300B in Art Audio 'Vivo' amplifier (on 6moons)
EML300B-mesh by Triode Dick
EML300B-XLS in Yamamoto A014 amplifier (on 6moons)
EML300B-XLS in Yamamoto A09 Amplifier (on 6moons)
EML300B-XLS in ALLNIC A-6000 amplifier  
EML300B-Mesh om Robertmusic blog  
EML300B-XLS in ALLNIC AUDIO amplifier (on 6moons)
EML300B-XLS Test, door "Triode" Dick van de Merwe
EML320B-XLS Test, by Bert Fruitema  
EML520B Newsflash on 6moons Website (on 6moons)