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multimeter that has a transistor test socket for hfe testing
I just bought a multimeter that has a transistor test socket for hfe
testing. My PNP transistors it says are 180 or so, and that sounds right, assuming it's some kind of 'gain' measurement. But all of NPN transistors it says have values of 1 or 2, or in case, 3. I'm sure I'm putting the right pins in the right holes, I still have the pinout diagrams that came with the transistors, so there's no mistake there, and the holes are clearly marked on the multimeter... When I check the NPN ones that the hfe tester says have an hfe value of 1 or 2, they all have normally biased junctions when tested with the old 'pretend its a diode' method. So I dont know what to make of this. Can anyone give me some advice on this? -- 73 Tom VA7FAB Skype Name: va7fab_tom_in_vancouver |
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