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Old 17th October 2009, 07:09 PM   #1
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Default Leakage in germanium transistors...

I'm trying to read the beta on some pretty old germanium transistors. I know I can't use a modern DMM since they assume no leakage current between collector-emitter.

The thing is.. does anyone know how does changing the voltage affects the leakage? I checked the leakage current with my DMM with 5V, 2.5V and 1V across C-E with the base unconnected and it all seems to be around 0.1mA so I guess the leakage is very small to meassure using a standard DMM. Any other ideas about how to do this?
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