RadioBanter - View Single Post

December 3rd 05, 04:06 AM posted to rec.radio.amateur.homebrew

wrote:
I want to build a hi current 12v supply, I know where i can buy a
6-12v 100amp battery
charger cheap. This charger had silenium (dont know the proper
spelling) rectifiers. Im
thinking the transformer must be alot higher voltage than a similar one
in a modern charger
using silicon diodes. If i know the drop than i can figure the
transformers output voltage.
So does anyone know the voltage drop of these old rectifiers?

The normal drop (at rated current) of selenium rectifiers is about 2
volts per plate.

Silicon rectifiers drop about 1 volt.

Schottky rectifiers drop about .6 volt.