From: rob@despammer.com   
      
   On 05/03/2020 05:21, Jasen Betts wrote:   
   > On 2020-03-04, RobH  wrote:   
   >> I have some BC547 transistors which I want to use in a circuit, but   
   >> according to this:   
   >>   
   >> Hook the positive lead from the multimeter to the to the EMITTER (E) of   
   >> the transistor. Hook the negative meter lead to the BASE (B) of the   
   >> transistor. For an good NPN transistor, you should see “OL” (Over   
   >> Limit). If you are testing PNP transistor, the meter should show a   
   >> voltage drop between 0.45V and 0.9V. 4 May 2017   
   >   
   >> None of the BC547's give the those readings, as I get 0.02V on a few of   
   >> what I have, and not 0.45V.   
   >   
   > You must put your meter in diode-test mode, (on the fluke 77 it looks   
   > like that's also continuity beeper mode) it should say OL with the leads   
   > unconnected and 0.00V with them toucheing eaco other. then do the above   
   > measurements.   
   >   
   >> Are mine no good and should I bin them. I have had them for a couple of   
   >> years or so now, and only used 1 of them.   
   >   
   > I'm guessing operator error, they should still be good after only a few   
   > years.   
   >   
      
      
   Putting the meter in diode-test mode,it reads OL when leads are   
   unconnected and 0.00v when touching each other.   
   Then connecting the positive to the Emitter and negative lead to the   
   Base the meter beeps, then reads 0.666, the same reading when the   
   positive is connected to the collector.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)