Woo Audio WA6 Headphone Amplifier User Manual
Page 6
June 10, 2011©2011 WOO AUDIO
tm
Inc. All
rights reserved.
www.wooaudio.com
Rev 1.0. June 10, 2011.
6
Installing the rectifier tube:
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 5AR4 tube should
install on the socket labeled “5AR4”. You MUST use the compatible tube or
serious damage may occur to the amplifier. See Compatible Tube 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 top of the tube if needed.
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.