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Re: Quenching Question
From: Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Wednesday, September 03, 1997 7:59 PM
To: tesla-at-pupman-dot-com
Subject: Re: Quenching Question
Hi Julian,
> From: Julian Green[SMTP:julian-at-kbss.bt.co.uk]
> Sent: Wednesday, September 03, 1997 11:45 AM
> To: tesla-at-pupman-dot-com
> Subject: Quenching Question
>
> Following my attempts to get scope shots of my coil (images comming Malcolm)
> with and without spark breakout I am wondering the reasons for good quenching.
>
> I have proved that fast quenching increases spark length - but why?
It is exactly the other way around according to my observations :) A
well connected spark drains the energy *fast*. An air streamer causes
Q to remain fairly high and hence the trades can continue.
> When the spark gap fires it connects the cap and primary to form a tank
> circuit which generates the RF. The secondary starts to ring as the energy
> in the primary circuit transfers to the secondary. The amplitude of the
> secondary builds until output spark forms and energy exits the system.
>
> For all this to happen the primary tank circuit must remain connected (spark
> gap not quenched). Quenching the spark gap too soon will prevent generation
> of primary RF. On my coil the peek in secondary RF comes after 3-4 cycles
> and if sparks are allowed the secondary RF is killed at this point. Any
> events that occur after we simply don't care about, or do we?
I don't.
Malcolm