[sdiy] Funky Beta
Ken Stone
sasami at hotkey.net.au
Sun Jun 22 10:32:43 CEST 2008
It sounds like you are reading them up-side down, i.e. C and E swapped.
>I've been working on a PNP-NPN expo converter. Knowing it's conducive to
the unit doing its job if the transistors involved are beta matched, I
started running the transistors I had (2N3904s and 2N3906s) through my new
multimeter (it has an Hfe test socket). The meter is a cheapo one I should say.
>
>The 3904s had numbers between 100-199, nothing below three digits. The
3906s however were far more measly. Like 6...5...8... nothing above a 9.
>
>Any idea what's going on?
>
>
>
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_______________________________________________________________________
Ken Stone sasami at hotkey.net.au
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