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Transistors not labeled, what to do?

ZeroSizeObject
There are no identifying marks on a bunch of transistors I have in surplus. (Is it typical to have lots of extra parts laying around, or am I mad?)

How can I distinguish which transistor is a pnp or npn?

Zero
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    Throw them away. They aren't worth the time and agro...

     

    Farnell sell NPNs for less than a penny and PNPs for about 6.4p...

     

    It's not like the days when I used to buy BC108's for a couple of shillings, and 7474 logic for a couple of pounds...  (Yes each.)

     

    Even if you get a thrill over achieving results for free, I find that a completed project is more satisfying.

     

    Chris

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  • 0

    Throw them away. They aren't worth the time and agro...

     

    Farnell sell NPNs for less than a penny and PNPs for about 6.4p...

     

    It's not like the days when I used to buy BC108's for a couple of shillings, and 7474 logic for a couple of pounds...  (Yes each.)

     

    Even if you get a thrill over achieving results for free, I find that a completed project is more satisfying.

     

    Chris

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