Re: [TCML] Using unequal electrode spacings, was Setting optimal phase angle of SRSG motor

[Futuret <futuret@xxxxxxx>]

Phil,

I think I had seen that, but I did my own work with unequal gap spacings
before Richie did his work.  In my work I didn't actually calculate
or simulate the effect, I just used my judgment for the spacings,
then verified that I was getting equal sized bangs using a scope.
Because I just estimated the proper spacings, my bang sizes were
not exactly equal in amplitude but were quite close.  

Regarding improvement, it depends on how you look at it.  Yes
the system will draw a lot of power and give longer sparks.  What's
not clear to me is that efficiency is increased.  In other words does
it give longer sparks for a given input power?  Certainly if a particular
system tends to draw more power, it will tend to give longer sparks
also.  From what I remember I didn't actually get longer sparks for
a given input power, compared to a system using equal gap spacings
for the same input power.  I was using a potential transformer to 
power the coil, so I was able to adjust the ballasting as needed.
I didn't try the system using NST (current limited) transformers. 

I can't remember all the details of my tests, so I can't feel too 
confident in what I'm saying.  I just reported what I remember.  
I remember thinking at the time that the extra complexity didn't
seem worth the effort.  

It might be a good idea to do your own experiments, and let us
know what you find.   

Cheers,
John

 

 


 

 

-----Original Message-----
From: Phil Tuck <phil@xxxxxxxxxxx>
To: 'Tesla Coil Mailing List' <tesla@xxxxxxxxxx>
Sent: Tue, Dec 7, 2010 5:29 pm
Subject: RE: [TCML] Setting optimal phase angle of SRSG motor


John,

I presume you have seen this page many times of Richie's

http://www.richieburnett.co.uk/offset.html

I was seriously thinking of trying it for next year, but you have had no

improvement your saying?



Regards

Phil



www.hvtesla.com





-----Original Message-----

From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf

Of Futuret

Sent: 07 December 2010 20:54

To: tesla@xxxxxxxxxx

Subject: Re: [TCML] Setting optimal phase angle of SRSG motor


If I remember correctly, it's not necessary to use unequally spaced

electrodes to get equal bang sizes at 200 bps.  

I've done various experiments with unequally spaced electrodes but I didn't

generally obtain longer sparks for a given input power.  

John



 



 





 



 



 
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