[Boatanchors] selenium rectifier

[Glen Zook]

Depends on the circuit whether or not you have to add
a series resistor to drop the voltage.  A silicon
diode has about a .7 volt drop and the selenium range
from a volt or two at low voltage to 25 volts, or so,
on higher voltages.  Some circuits can take the
slightly higher voltage without any problems and a
very few really like the voltage to be a bit lower.

I would measure the output voltage before and after
replacing the selenium with a silicon.  If it is
significantly higher and the circuit is being
overloaded, then I would put a small resistance
(fairly high wattage) resistor in series with the
rectifier.

Glen, K9STH


--- Mike & Judy Wells <swells@gunnison.com> wrote:

Is there a higher voltage drop across the selenium
rectifier? I would think so, but is it significant
enough to worry about?


=====
Glen, K9STH

Web sites

http://home.attbi.com/~k9sth
http://home.attbi.com/~zcomco

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