tomprs
Well-known member
When I bought my dual rec back in 2001 it had Mesa str430 tubes (grey color code) in the power section. Then it was time for a change and, as I knew very little about tubes, I just went to a well-known amp tech and he changed the Mesas for Sovtek 5881 wxt's (I asked for these as I wanted a smoother sound at the time). I'd like now to order new tubes (JJ 6L6 GC) and do the change by myself as there is no need for biasing the amp BUT how do I know the ordered quad will have the correct value for the amp's bias??? I'm stuck!
Tom.
Tom.