Hiya!
Me and a friend is talking about building a tubeamp with som minor solid state addon and we were wondering if someone could help us with parts.

Our fysics teacher told us that we needed a special kind of transformer because one of the tubes were strange. Since our teacher is the strangest person we've met we don't exactly trust him. Could someone help us figure it out?

Here's the schematics: http://www.2shared.com/file/4423507/b4ecf2e4/gretsch6150a.html

So if someone understand what the schematics mean by this please reply