[Prev][Next][Index][Thread]

RE: What is going on??


        Please remember that the tiny output of a signal generator may not have
enough current to "really" energize the steel core of a neon transformer. 
Thus, they may give inaccurate readings.  I.e. transformers look like they have
low inductance with a hand held meter but when "real" current is put through
them they function as expected.

        Terry




At 09:21 AM 4/6/99 -0400, you wrote:
>Hi Reinhard:
>
>>The voltage of my signal generator does NOT drop during any stage of the
>>experiment. Interestingly enough at resonace, the input voltage (sig gen)
>>actually rises.
>
>This doesn't make sense.  With my experiment, the primary voltage showed
>a distinct DROP at resonance, as I would expect it would for any
>experiment using a non-zero source resistance.  My signal generator has a
>50 Ohm output. It may be necessary to record both pri and sec voltages
>and calculate the ratio before drawing conclusions.  Could your signal
>generator (or meter) have a very irregular freq vs. voltage curve?  But
>then I can't explain why the 50nF cap produced a higher voltage than the
>31nF calculated cap with the 2VAC/50Hz source.
>
>One other easy experiment you could try is to verify the current of your
>NST.  Put an AC current meter across the output terminals, effectively
>shorting it, and power it up.  Your NST hasn't had shunts removed, has it?
>
>Regards, Gary