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Re: [OM] Sources of supply for germanium diodes like 1N34A

Subject: Re: [OM] Sources of supply for germanium diodes like 1N34A
From: Dizel <webmaster@xxxxxxxx>
Date: Thu, 06 Mar 2003 15:40:22 +0100
CDSH270 diode is a common replacement and very easy to find.  I also use
schotkey diode 1N6263.

I just (yesterday) built a SR44 adapter according to this:
http://www.rolleiclub.nl/batt-adapt-US.pdf

I couldn't find Schottky diodes mentioned there, so I used
SD 103C - a widely available Schottky diode, with somewhat
better voltage/current stability than BAT 47. It costs
0.30 PLZ - it is some 0.06 US$ per piece :-)

Results are very good:
(OM1, adapter with silver battery SR44 type (Energizer 357HD):

 EV      Current        Voltage         Exposure error
 2       16uA           1.42            0.1 EV
 7       86uA           1.38            0.0 EV
16      530uA           1.35            0.0 EV

and then I discharged this battery via 0.15 A/1.5V lamp.
Results were completely consistent across whole battery
life, also there were no big differences between fireplace
neighbourhood :) (30 degrees Celsius), room temperature
(16 degrees Celsius) and outside (-10 degrees).

For myself I found a Holy Grail. Now I have to use other five
SD 103C diodes I bought also.. ;)

have a nice soldering! \;)
--
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                                St.
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