Re: Tesla coil blunders

["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: "John H. Couture by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <couturejh-at-worldnet.att-dot-net>
> 
> Ralph -
> 
> What are your coil parameters? What test data do you from your tests? Thank
> you in advance.
> 
> John Couture
> 
> -----------------------
> 
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Saturday, March 31, 2001 10:42 AM
> To: tesla-at-pupman-dot-com
> Subject: Tesla coil blunders
> 
> Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> <Parpp807-at-aol-dot-com>
> 
> Gary and John C.,
> 
> The B-K 1823 counter will read a continuous sine wave or square wave. It
> will
> not read a sine wave of variable burst rate. At least not for me it won't. I
> take this as a good indicator that it will not read the non-CW output of a
> disruptive coil. As I do not want to risk the sacrifice of my freq counter,
> I
> did not carry the experiment any further.
> 
> Any more info on the subject will be much appreciated.
> Learning in progress but much too slowly.
> 
> Happy day,
> Ralph Zekelman
> 
> << Gary and John C.,
> 
>  That is my basic question as to the use of a counter  to read the operating
> frequency.
>  I'll try it tomorrow (carefully) and post my results.
> 
>  Cheers,
>  Ralph Zekelman >>

	Frequency counters work by counting the number of cycles (zero
crossings of the waveform) in a given time interval, and hence can't
measure the frequency of any waveform of shorter duration than that
interval.  HP used to make (and Agilent probably still does) equipment
to measure the frequency of pulsed signals by measuring the period of a
selected portion of those signals and then calculating the frequency
from that.  Suspect they could be used to measure the subject frequency,
by a scope can do the same thing with enough accuracy for any TC work I
can imagine....

Ed