Name:    michael kaus
Email:   cnmkaus@charter.net  
Subject: HD130 questions
Thread:  76
Time:    Sun, 27 Jan 2002 08:38:26 UTC

If you can't see a small tube to the left of the power tubes looking from behind the amp you don't have the 12ax7. It would have a metal shield around it. And yes, you will need to re-bias it.