Woo Audio WA22 Fully balanced User Manual
Page 6

©2011 WOO AUDIO
tm
Inc. All rights reserved.
www.wooaudio.com
Rev 1.0. June 9, 2011.
6
Installing the tubes:
 
Note: avoid oil or smudge on the tube glass; clean hands before installation. 
 
1. Find the correct tube for the socket. There is a label below each tube socket that
indicates a standard tube for the amplifier. For example, a 6080 tube should 
install on the “6080” labeling socket. You MUST use the compatible tube or 
serious damage may occur to the amplifier. See Compatible Tubes section for all 
the approved direct substitute tubes. 
2. Align the tube guide pin to the socket as below.
 
 
 
 
 
 
 
 
 
 
 
 
3. Hold the tube base firmly then squeeze it into the socket slowly. Be sure to apply
force perpendicular to the tube socket; never insert the tube at an angle. Apply 
slight rocking motion for the tube, which is harder to insert; never apply circular 
motion. Apply pressure from the top of the tube if needed. 
Tube to tube
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Tube socket guide pin indicator
Guide pin shows on the
bottom of a tube.
Do no insert a tube at an angle
 
Insert a tube perpendicular to 
the socket. 
 
Hold base firmly. 
