germanium transistor question

el_shek · Post by **el_shek** » 23 Sep 2010, 19:36

Hi, this is my first post. I've only built one pedal so far, so I'm still new to this.

I was on my way to my physics class today and one of the professors was getting rid of a bunch of germanium transistors. He said they've never been used, and he's not sure if they work, but they're still in sealed packages. He just gave them to me. I've got 18 of them.
My question is what exactly they would be good for, if anything. They're NPN General Electric GE8's. Does anyone know anything about these?

Hides-His-Eyes · Post by **Hides-His-Eyes** » 23 Sep 2010, 20:32

Build the RG keen leakage tester and then stick them in a multimeter to test the HfE!

sinner · Post by **sinner** » 23 Sep 2010, 21:17

Or save yourself an headache and buy Atlas transistor tester

Grendahl · Post by **Grendahl** » 24 Sep 2010, 14:20

Once you have the HfE measured you will know what types of circuits you can build around them... which is why the two posters above me suggested you measure it first. They're right!

el_shek · Post by **el_shek** » 25 Sep 2010, 04:02

alright. i'll check it out! thanks!