Manual

©2011WOOAUDIO
tm
Inc.Allrightsreserved. www.wooaudio.com Rev1.0.June27,2011 11

Compatible Tubes
 Model# Adapter Comment
Driver
6SN7*/GT/WGT No 
5692 No 
6CG7 Yes A9‐pinto8‐pinadapterisneeded.
6F8G Yes A8‐pinto8‐pinadapterwithGridwireisneeded.
7N7 Yes A8‐pinto8‐pinloctaladapterisneeded.
CV181 No 
CV1988 No 
ECC32 No 
VT231 No 
Rectifier
5U4G*/B No DirectlyHeated
274A Yes DirectlyHeated,a4‐pinto8‐pinadapterisneeded.
274B No DirectlyHeated
53KU No DirectlyHeated
5AR4 No IndirectlyHeated
5AS4 No DirectlyHeated
5Z4 No IndirectlyHeated
5R4 No DirectlyHeated
5U3C No DirectlyHeated
5V4/G/GA No DirectlyHeated
5Y3 No DirectlyHeated
5Z3 Yes DirectlyHeated,a8‐pinto8‐pinadapterisneeded.
83 Yes DirectlyHeated,a8‐pinto8‐pinadapterisneeded.
GZ30 No IndirectlyHeated
GZ32 No IndirectlyHeated
GZ33 No IndirectlyHeated
GZ34 No IndirectlyHeated
GZ37 No IndirectlyHeated
CV378 No IndirectlyHeated
U52 No IndirectlyHeated
U54 No DirectlyHeated
Power
WE300B* No 
EML300B/XLS No 
Treasure300B No 
Sophia300B No 
EAT300B No 
EH300B No 
JJ300B No 
Shuguang300B No 
Svetlana300B No 
Takatsuki300B No 
* The most current chart can be found in this document:
http://tinyurl.com/4wbv5qn