Re: Testing NST with an auto-ranging meter

["Finn Hammer" <f-hammer-at-xxxxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

Seth!

I have seen similar problems with my Fluke 83.

Example: It will not measure the capacitance of a mmc string, once the
resistors are put across the caps.

It doesn`t measure ohms into big inductances either.

Both tasks were performed flawlessley with el cheapo lcr meters.

Cheers, Finn Hammer

Tesla list wrote:
> 
> Original poster: "Seth Fischer" <aureo-at-xtra.co.nz>
> 
> I have a second hand 15/30 NST
> 
> Both have a primary resistance of 3.0 Ohms.
> 
> Each output terminal to case is 8.0k Ohm.
> 
> But when I try to measure the output resistance, terminal to terminal my
> Fluke 77 digital meter can't select the correct range I must manually
> set the range to k Ohm to get a reading of 16k Ohm.
> 
> Anyone know why?
> 
> I think my other NST I bought is dead 8.0k Ohm terminal to case and o/c
> the other terminal to case. Is it usual for only one winding blow? I
> can't get the cover off because black stuff has oozed out.
> 
> I guess I'm safe to ask for a replacement.
> 
> Thanks,
> Seth Fischer