RE: [TCML] Spark gaps, Solid state switches and diodes

["Lau, Gary" <Gary.Lau@xxxxxx>]

What circuit schematic are you referencing?  Adding a spark gap to a circuit using an SISG seems like wondering where the hay goes in a horseless buggy.

It sounds like you're attempting to achieve a CW or near-CW mode of operation.  I'm not sure that's possible, as spark gap and SISG-driven coils are by definition, disruptive.

Regards, Gary Lau
MA, USA


> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Gary Peterson
> Sent: Friday, February 06, 2009 10:31 AM
> To: 'Tesla Coil Mailing List'
> Subject: RE: [TCML] Spark gaps, Solid state switches and diodes
> 
> Would an adjustable hyperbaric spark gap placed in between upper end of R1
> and the collector of the first IGBT provide SISG quenching?  The idea is to
> have the transistors initially close the switch, as usual.  As the primary
> capacitor the voltage decreased the voltage drop across the quench gap would
> also decrease and the spark would extinguish itself.  The idea is to turn
> the circuit controller switch off before the second primary capacitor
> discharge cycle begins.  I've also seen a sulfur hexafluoride filled
> adjustable spark gap, which might be used for the same purpose; that was at
> Golkaland, CO.
> 
> Bart Anderson might want to investigate such a modification to his SISG
> machine in preparation for his upcoming experiments.
> 
> G.P.
> 
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf
> Of DC Cox
> Sent: Wednesday, February 04, 2009 6:36 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Spark gaps, Solid state switches and diodes
> 
> Install a hyperbaric spark gap and you will be really amazed at the
> performance increase.
> 
> Dr. Resonance
> 
> 
> 
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