Yes I know the combo of resistor,cap and diode but I had seen a bunch of recent home brew projects with just the classic orange dick caps across the diodes in the diode string on rectifier board. Instead of resistors one each part I am
guessing the resistor string between the diode and the larger filter caps where tied in with traces that did not show in the photo. A lot of the older stuff I have read on this topic talked about the caps being used to prevent spikes ie surges in the rectifier section and they where not talking about after the filter caps either. My Library only has old old books on this topic most of them are from the 1950. I understand a lot has changed since then so that is why I wanted to ask. I have noticed that most modern OEM rectifier boards do no not have caps or resistors attached on top or bellow each diode. In fact most of them have the caps grouped together, all the resistors in one area and all the diodes in another and use through board construction to make all the needed connections to all the parts with out having them all touching each other directly or stacked on top of each other.
Most Americans are not very forth coming with photo's or design details. So I am
forced to read web sites from Europe and review their projects to get insight into what has changed since the books I am
reading where published and what is the norm today! So when I read something that is different from my ancient books or I see conflicting designs in modern home brew projects I pop in here and get the explanation as to what is the norm or best practice for today!
So as if I read things correctly while it would not hurt anything to put caps across the diodes it also will not do you any good. Why? Today's diodes do not need this in order to do their job just use plenty of them and keep PIV in mind?!
using 1000V 10a rectifier diodes( I got them for less then the cost of 1amp 1000V Diodes) and I was going to use 12 in each string I figured that will more then get the job done. I was going to put my resistors in between each string and feed through the resistors to the diodes strings then out to the filter caps. I am
using (12) 450V 100uF Teflon caps. I have them wired so it is like I am
using (6) 450V 200uF caps again should be gross overkill for what I need.