Re: NST frequency

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "darin willson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <darinwil-at-execpc-dot-com>

Update:
Well I made a diffrent Cockroft with diffrent caps. this time I made one
with 3 photoflash caps (although unmatched) and I am definatly 
getting more bang without tripping that saftey, although it takes more
time to charge. I assume it takes more time because of the larger capitance.
I guess to make a coil I will have to find a balance between the two. I dont 
know if I should stick with the ceramic disks or try to get more of the 
photoflash caps (all same size of course). I guess maby I should say something
about the size of the coil I want to build at this point so you guys have
an Idea 
about what I am trying to accomplish.
All I really want is a coil about 3" tall: small, portable, and since my
inverter 
requires a DC input, battery powered (18v craftsman cordless drill batt)
8/1/01 11:04:50 PM, "Tesla list" <tesla-at-pupman-dot-com> wrote:

>Original poster: "Kevin Ottalini by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <ottalini-at-mindspring-dot-com>
>
>Rob:
>        I see this effect with my Marx generator ... after I discharge it, I
>have to cycle power
>to get the inverter going again, but it appears to be backlash (ringback)
>from the discharge
>not EMP.   I don't believe though that Darin is to this stage yet ...
>
>Unfortunately, disconnecting the inverter from a live Cockroft is a sure
>recipe for
>damaging the Cockroft ... from years of experience.  Building 10,000
>Cockroft
>Multipliers and Inverters kinda takes you through every failure scenario at
>a few times.
>
>Best,
>        Kevin
>
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Wednesday, August 01, 2001 6:03 PM
>Subject: Re: NST frequency
>
>
>> Original poster: "Area31 Research Facility by way of Terry Fritz
><twftesla-at-qwest-dot-net>" <rwstephens-at-hurontario-dot-net>
>>
>> I believe that Darin's problem of the inverter going stupid is being
>caused by
>> EMP when he discharges his Multiplier.  It could well be that there is
>enough
>> increase in EMP from 4 stages over 3 that he thresholds into this problem.
>I
>> built a tabletop Cockroft Walton multiplier that achieves 150 KV on top
>from 5
>> kVAC input in the lab and the first time I discharged it into a grounded
>wand
>> it made a VCR in the same room lock up so badly it had to be left
>unplugged
>> overnight to recover.
>>
>> Physically disconnecting the inverter and also powering it down prior to
>> discharging the multiplier may be helpful, although no guarantee of saving
>the
>> inverter from catastrophic damage.  Shielding and bypassing of all leads
>in and
>> out of the inverter may help.
>>
>> Rob
>> >
>
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