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Originally Posted by robot gigante  I'm wondering about this- so they switched what kind of transformers they use in it? When and to what? |
In March of 1996 they switched from Sowter and started using their own Manley transformers (the version 2), three months before they stopped using the 6386 tubes due to supply difficulties, and started using the 5670 (the version 3). They also changed output tubes from 12BH7 to 7044. In October 1997 came the version 4, and current production is the 4a since February 2004. The 4 changed board layout and power transformer (a single big one completely outside on back), and the 4a changed output tubes from 7044 to 5687, and gain tubes to 12AX7EH.