| Author | Message | ||
     Marcus |
I just bought a 65 reverb head and have replaced the tubes with GE EL34's. I took it to the local repair shop and the tech told me this is a self biasing amp. Is this true? It doesn't have a 12Ax7 tube so I'm assuming it is a later model. Thanks. | ||
| michael kaus |
It's not truly self biasing but for most purposes, it is. The driver board determines the cathode current and is adjustable. See the adj procedures listed earlier in this heading. Mike. |