Ceriatone Forum

British Style => JCM 800 2203, 2204, 2550, 2555 => Topic started by: Cowinacape on December 08, 2008, 04:04:39 PM



Title: Ok so time to retube my 2203, couple of quickie questions - biasing -
Post by: Cowinacape on December 08, 2008, 04:04:39 PM
Hey everyone,

  Ok so I dubbed it time to change out the power tubes, placed an order for some KT77's. When I ordered my amp from Nik, I thought ahead a bit and had him add outside bias points and pots to it as well. 

  So my noobish questions, (two of them) what should the bias be set at for 77s'? And the real noob question, what setting should my multimeter be set at? I am thinking V~500, yes or no?

 Thanks
 Dan

Edit, One more noob question -
Which of the pre tubes is V1?  I have a whole mit full of pre tubes I want to swap and try.