On Fri, 15 Oct 1999 03:40:48 -0500, you wrote:
>The diode has to turn on before the innards of the regulator do.
>Germanium turns on at about .2 volts instead of the .65 of silicon.
>Schottky is somewhere in between, and you will have a hard time
>finding a 100 volt Schottky. But as long as it's good for at least
>20 or 25 volts it should be fine.
The forward voltage drop of a Schottky diode is about 0.3V, so you
should be able to substitute it for a germanium diode in this case... if,
as you say, you can _find_ one rated that high. :)
----------------------------------------------------------------------
"An Academic speculated whether a bather is beautiful if there is none
in the forest to admire her. He hid in the bushes to find out, which
vitiated his premise but made him happy.
Moral: Empiricism is more fun than speculation." -- Sam Weber
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solarfox@DON'TMESSWITHtexas.net (Gary Akins jr.)
http://lonestar.texas.net/~solarfox
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Received on Fri Oct 15 07:23:37 1999
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