Is this a diode? What kind?

Thread Starter

Darkstar

Joined Sep 3, 2010
139
Hello, I have a few devices which someone guessed might be Germanium diodes. I'm not sure though. They have a forward resistance of about 630 K Ohms. They have no markings but a dark spot on one end of their red oval shape. See attached pic. Thanks.What Kind of Diode.jpg
 

Thread Starter

Darkstar

Joined Sep 3, 2010
139
Thanks. Is there any way to easily determine more of its specs? I tried using it in a RF signal detector but it's resistance is so high it didn't work.
 
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