[Amps] SB-200 power supply diodes

[Glen Zook]

Actually, the original electrolytic capacitors were -50% / +80% in value.  New capacitors generally come in +/-10% or +/-20%.  Since the +/-20% capacitors are generally quite a bit less in cost, and since the value range is considerably closer than the originals, using +/-20% capacitors is fine.

Glen, K9STH

Website:  http://k9sth.com


--- On Sun, 3/27/11, Paul Kraemer <elespe at lisco.com> wrote:

Excellent point Gerald I also  wonder if any one has done the math or actually measured the increase in diode / transformer current from arbitrarily increasing the original filter cap size from the original 125 mfd to say 330 mfd in those doubler supplies. I realize those original caps were probably 10 pct or more over the labled value and the new one will likely be 10 pct under. Still, it is a change and it does matter. Someday I'm gonna take the HP 428 and actually measure before and after transformer current, just out of curiousity.