Re: [TCML] srsg to vari speed rsg

[coils@xxxxxxxxx]

nice gap Jay!  looks like you like making things too.  Is that a nylon rotor shaft?  If so, any concerns with heat on the electrode?  I ask because I have managed to 
melt .375"  G-10 at 8 kva, gonna try G-7 next.

cheers



On Sun 28/07/13 12:07 PM , jhowson4@xxxxxxxxxxx wrote:

> Sort of how I built my ASRG 
> propeller style, I can remove electrodes easily, I can replace tungsten
> easily, 
> and it uses a minimum amount of tungsten as well, cutting costs. Each
> stationary electrode only has .75" of 1/4. 
> the rotary electrodes have 1.5" of 1/4" thoriated tungsten. 
> Brass is expensive stuff, but all the brass was procured cheaply on ebay
> via some good deals over the course of a year or so. 
> 
> Designed to be a dual gap, for use in a split resonator power supply DC
> coil, hence the double sided nature. 
> Still needs a few tweaks to be perfect for my tastes, but it does the job
> nicely currently on my test coil. 
> 
> check it out here 
> http://s139.photobucket.com/user/JHowson/library/Tesla%20Coils/Experimental
> %20DC%20Tesla%20Coil%20%20%20code%20name%20TRON/4%20Rotary%20Spark%20Gap?so
> rt=3&page=1[1] 
> 
> note: the second rotary electrode is missing in the pictures. I have not
> installed it yet. 
> 
> Thanks, 
> John "Jay" Howson IV 
> 
> "Why thank you, I will be happy to take those electrons off your hands." 
> 
> ----- Original Message -----
> From: "Scott Bogard"  
> To: "Tesla Coil Mailing List"  
> Sent: Sunday, July 28, 2013 1:46:10 PM 
> Subject: Re: [TCML] srsg to vari speed rsg 
> 
> I was thinking more a propeller gap with unused stationary electrodes,
> that 
> could be reconnected at will. You could always add top capacitance to 
> cancel out the extra primary inductance when you cut your cap size, 
> assuming you have the power draw to support a larger top load, not sure if
> 
> that is applicable to your situation. But at any rate I love the ASRSG, I 
> did sync once, and got poor results, switched to ASYNC and things worked 
> much better. I know now what I did wrong, poorly sized cap and all, but I 
> still won't go back, ASYNC is too easy to build, and smaller caps are 
> cheaper, and I love the brightness only high BPS can afford. 
> 
> Scott Bogard. 
> 
> On Sun, Jul 28, 2013 at 2:42 AM,  wrote: 
> 
> > Thanks for your thoughts Scott, I am using a 60:1 distribution 
> > transformer with an adjustable (gapped) inductive ballast. 
> > I am tapped out of primary inductance, so I cant really decrease my cap.
> 
> > I have a lot of flexibility though with the ballast. Thinking 
> > about the gap you suggest has me boggled, maybe something like Richard 
> > Hulls series quench rsg with swithchable stationary electrodes? 
> > What appeals to me, is that a vari speed gap can be adjusted on the fly,
> 
> > no stopping and fiddling. That is why I made the Freu phase shifter. 
> > 
> > This has really got me thinking about rotary gaps! 
> > 
> > cheers 
> > 
> > 
> > 
> > On Sat 27/07/13 12:31 PM , Scott Bogard  wrote: 
> > 
> > > One thing you could do, is rig a system to do sync that has multiple 
> > > dis-connectable electrodes for 120/240/480 BPS, but again, if you
> aren't 
> > > changing the tank cap size, only one range will actually serve your 
> > > purposes well... What type of transformer are you using? How is it 
> > > ballasted if at all? 
> > > 
> > 
> > _______________________________________________ 
> > Tesla mailing list 
> > Tesla@xxxxxxxxxx 
> > http://www.pupman.com/mailman/listinfo/tesla [2] 
> > 
> _______________________________________________ 
> Tesla mailing list 
> Tesla@xxxxxxxxxx 
> http://www.pupman.com/mailman/listinfo/tesla [3] 
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla [4]
> 
> 
> 
> Links:
> ------
> [1]
> http://webmail.sonic.net/parse.php?redirect=http://s139.photobucket.com/use
> r/JHowson/library/Tesla%2520Coils/Experimental%2520DC%2520Tesla%2520Coil%25
> 20%2520%2520code%2520name%2520TRON/4%2520Rotary%2520Spark%2520Gap%3Fsort%3D
> 3%26amp%3Bpage%3D1[2]
> http://webmail.sonic.net/parse.php?redirect=http://www.pupman.com/mailman/l
> istinfo/tesla[3]
> http://webmail.sonic.net/parse.php?redirect=http://www.pupman.com/mailman/l
> istinfo/tesla[4]
> http://webmail.sonic.net/parse.php?redirect=http://www.pupman.com/mailman/l
> istinfo/tesla
> 
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla