Re: Measuring NST current

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-uswest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "davep by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<davep-at-quik-dot-com>
> 
> Tesla list wrote:
> > Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>
> 
> > Hi David,
> 
> >         It can be done but you have to be really careful!  The voltage
> across the
> > meter is low and about near ground but if anything goes wrong at all the
> > meter will get fried.  You have to carefully make sure the meter and leads
> > are in the 400mA current range.  The meter has to be well insulated from
> > everything else.  if the fuse in the meter blows (or was already blown), it
> > will fry.
> 
>         Sounds good to me.  If accessible, putting a bypass on the
>         fuse might help.  Also, with a bit of digging, one can come
>         up with ac milliameters for under $5 (ham radio fleas, notably...)
>         Toasting one of thosei less likely and a LOT more affordable..
> 
>         best
>         dwp

	A DC ammeter/milliameter will also work if connected to the output of a
full-wave bridge rectifier (dirt cheap) and calibrated with your DVM.

Ed