How to bias output tubes on Golden Tube SE 40


I have a friend who needs to replace the output tubes in his Golden Tube SE 40 amplifier. Is there a copy of the manual sowewhere online or does anyone know how to bias the output tubes? Thanks for any help...Robert
rec
Is it possible that you send me a copy of the manual also.I'll pay for the cost of copying or mailing.Thanks
My E-mail:
ldoan1@socal.rr.com
A copy of the GTA SE-40 service manual is available at http://groups.yahoo.com/neo/groups/golden_tube/info

It includes the proper biasing procedure and tube substitution guide.