It won't. The rectifier tube warms up slowly and begins to conduct only a little at first, so allowing the first cap to charge up slowly. That's exactly why you want the first cap connected directly to the rectifier, before the standby switch. If you connect a well-warmed-up rectifier to an empty cap, the initial current will be well over the rectifier rating.Originally posted by AL1
John, what about the issue of the first filter cap voltage going too high when the power switch is thrown?