Re: sparkless rotary spark gap (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 06 Aug 2007 05:18:32 +0000
From: ameen_ghavam@xxxxxxxxxxx
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: sparkless rotary spark gap (fwd)

the gap would still open to alow the cap to charge, but I was thinking
about what would happen if at each presentation, the rotating electrode
physicaly touches the stationary for an instant.
                                       Cheers,
                                            Ameen Ghavam

-------------- Original message -------------- 
From: "Tesla list" <tesla@xxxxxxxxxx> 

> 
> ---------- Forwarded message ---------- 
> Date: Sun, 5 Aug 2007 22:01:05 -0500 
> From: resonance 
> To: Tesla list 
> Subject: Re: sparkless rotary spark gap (fwd) 
> 
> 
> The air turbulence of a RSG helps significantly to provide proper quenching, 
> ie, disconnecting in the primary circuit to allow the sec coil to "ring" at 
> its resonant frequency. It also keeps the electrode tips cool --- something 
> an opening and closing mechanical gap could not do properly. 
> 
> To charge a cap you need the contacts apart, then they close to discharge 
> the cap. If the contacts stay closed the power transformer is directly 
> shorted and no current flows into the cap --- it just loops around back to 
> the xmfr. It would be difficult to mechanically open and close the spark 
> gap --- a rotary motion makes the process much easier especially with high 
> power coils. 
> 
> Modern coil design is beginning to totally eliminate the spark gap and all 
> it's high heat/light losses. IGBT switching is the wave of future coils. 
> At present we are working on a project using a microprocesser to provide 
> complete control over all switching elements, ie, pulse width, pulse 
> duration, power level, etc. EE Steve Ward is working on the initial design 
> of this system. 
> 
> Regards, 
> 
> Dr. Resonance 
> Resonance Research Corp. 
> www.resonanceresearch.com 
> 
> 
> ----- Original Message ----- 
> From: "Tesla list" 
> To: 
> Sent: Sunday, August 05, 2007 8:33 PM 
> Subject: sparkless rotary spark gap (fwd) 
> 
> 
> > 
> > ---------- Forwarded message ---------- 
> > Date: Mon, 06 Aug 2007 00:58:02 +0000 
> > From: ameen_ghavam@xxxxxxxxxxx 
> > To: Tesla list 
> > Subject: sparkless rotary spark gap 
> > 
> > Alright, I'm no exptert, but I can't seem to see why it's 
> > absolutely necessary to have a rotary gap spark as suppose to just 
> > touching electrodes. If your electrodes touched, there would be no worries 
> > about quenching or overheating, but the capacitor still discharges. This 
> > does mean, however, that the circuit resonates a lot longer and gives the 
> > capacitor less charging time. But it could be a fair tradeoff considering 
> > that more energy overall is transfered into the secondary. The efficiency 
> > may not improve, but no quenching or overheating worries, just physical 
> > erosion to the electrode. 
> > Does anyone see a reason why that wouldn't be a 
> > good idea? 
> > Ameen Ghavam 
> > 
> > 
> > 
> 
> 
> 
>