Hi Folks, Building another amp. Trying to calculate the power supply. I'm confused about the source impedance. When I input the secondary DCR (per hammond's spec sheet, http://www.hammondmfg.com/pdf/EDB269JX.pdf) in the source impedance calculator, I'm getting voltages much lower than I would expect. Am I doing this wrong? Trying to get 350v on the first B+ node. Am I doing something wrong? I don't have the transformer yet, so I can't measure the secondary DCR myself.