Re: Double Throw Spark Gap (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 10 Oct 2007 08:57:07 -0600
From: resonance <resonance@xxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Double Throw Spark Gap (fwd)


I stock 1 Henry air core inductors which work great for DC coil design.  I 
have them especially made as we use them to replace the normal charging 
resistors in our large Marx impulse generators.

Dr. Resonance


Resonance Research Corp.
www.resonanceresearch.com


----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, October 10, 2007 8:02 AM
Subject: Re: Double Throw Spark Gap (fwd)


>
> ---------- Forwarded message ----------
> Date: Tue, 09 Oct 2007 10:04:15 -0500
> From: Crispy <crispy@xxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Double Throw Spark Gap (fwd)
>
> I have done the relevant calculations as they pertain to DC coils.
> Using a reasonably sized charging inductor (around 25mH or so), there is
> a significant margin for the dwell time, and it would not be a problem.
> Another way to think about it is that normal resonant charging DC coils
> usually use an inductor with a value in the Henries, which still leaves
> reasonable charging time.
>
> Using this type of gap in an AC coil, the characteristics of the power
> supply would determine if it could charge enough in that time period.  I
> imagine that a pig, not being current limited, would be sufficient.
> Unfortunately, I can only speculate here, because I have neither the
> money to buy a pig nor power capacity to feed it.
>
> Chris B
>
> On Tue, 2007-10-09 at 06:48 -0600, Tesla list wrote:
>> ---------- Forwarded message ----------
>> Date: Tue, 9 Oct 2007 03:46:42 -0700 (PDT)
>> From: Yurtle Turtle <yurtle_t@xxxxxxxxx>
>> To: tesla@xxxxxxxxxx
>> Subject: Double Throw Spark Gap
>>
>> I haven't really been following this thread, so
>> forgive me if this comment has already been addressed.
>>
>>
>> Regarding the following circuit:
>>
>> http://tangent.cluenet.org/~chules/hv/tesla/dtsg.html
>>
>> Does everyone think the cap can charge adequately in
>> the same amount of time it can discharge? Without
>> doing the math, I gotta believe that if one set of
>> flying electrodes zooms around at several hundred rpm,
>> the presentation time for the charging portion will be
>> too short to fully charge the cap. After all, most rsg
>> coils are charging the whole time they aren't
>> presenting (well not exactly). I guess you gotta know
>> the dwell time and the size of the pig feeding this.
>>
>> Adam
>>
>>
>>
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>>
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