hey, I have a few questions that seem so basic, I just wanted to be sure of myself. First, when calculating the power dissipated by a rectifier diode (Schottky), for full-wave rectification, is it simply Vf * current consumed by the load for each of the four diodes? Here's an example:
Is this the same, or different power dissipated for two diodes in FWCT, i.e:
Also, what is the purpose of a heater center-tap on a tube? Does this come into play for tubes that can be operated at either 6.3V or 12.6V, or in the CT irrelevant in this case.
Thanks!

Is this the same, or different power dissipated for two diodes in FWCT, i.e:

Also, what is the purpose of a heater center-tap on a tube? Does this come into play for tubes that can be operated at either 6.3V or 12.6V, or in the CT irrelevant in this case.
Thanks!