I have a transformer I've set aside for my BE50Dlx build....It's a Heyboer, but it's not the one specified in the BOM. Would love to know if anyone thinks I would run into trouble using this one. HV Secondary seems like it's good for a 50w marshall style amp. The big question I have is the 14v yellow taps. Can I use that for the switching? I know if I spec the right voltage regulator, it can handle upwards of about 30v. But I know very little about switching schematics, in general. In the schematic, its showing a 12v and a 0V tap. However, the transformer I have has two 14v taps? wouldn't you need both sides of an AC feed to rectify to DC anyway? A little confused, and I hope Im explaining this correctly.