I concur David,
BIL is the voltage withstand of the insulation for a 1.2 x 50 uSec
uni-potential lightning strike simulation. This is not a continuous duty
cycle test, only a single surge from a Mark's generator as specified in IEEE
- 4. Note, a lower potential switching surge may cause more damage as the
duration of a 1000 x 4000 usec transient has multitudes of higher energy
contained within that single pulse. Most systems are designed with BIL
lightning ratings of 8 to 10 times the continuous duty voltage using AC. So
a 50-kV mica capacitor may only be good for 5 or 6 kV AC. You need to watch
the tan-delta of your caps as the frequency increases when applying caps to
Tesla Coils.
See Ref: http://www.versapower.pt/files/TAN-DELTA-CABLE-TESTING-07.pdf
This is the prime failure mode of Tesla Coils - failure to acknowledge
losses in capacitors that lead to catastrophic failures - even explosions.
Hoo
-----Original Message-----
From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of
tesla-request@xxxxxxxxxx
Sent: Saturday, May 26, 2018 9:53 AM
To: tesla@xxxxxxxxxx
Subject: Tesla Digest, Vol 126, Issue 5
Send Tesla mailing list submissions to
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To subscribe or unsubscribe via the World Wide Web, visit
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of Tesla digest..."
Today's Topics:
1. Re: GE Protective Capacitors - Part # 9L18DCL101 or 18L0009WH
(David Rieben)
2. things for sale (tesla coil)
3. Re: Strange Voltmeter Behavior (Frank)
4. Things for sale (alton smith)
5. The Tesla Coil Builder's Guide to The Colorado Springs Notes
of Nikola Tesla by Richard L. Hull (masque teatro)
6. Re: The Tesla Coil Builder's Guide to The Colorado Springs
Notesof Nikola Tesla by Richard L. Hull (doug)
7. Tesla Technology Research (Jeff Behary)
8. Re: The Tesla Coil Builder's Guide to The Colorado Springs
Notesof Nikola Tesla by Richard L. Hull (Ed)
9. Re: The Tesla Coil Builder's Guide to The Colorado Springs
Notesof Nikola Tesla by Richard L. Hull (Mr Nico)
10. Re: The Tesla Coil Builder's Guide to The Colorado Springs
Notesof Nikola Tesla by Richard L. Hull (David Thomson)
11. Low Voltage TC (Theoretical) (W H)
12. Re: The Tesla Coil Builder's Guide to The Colorado Springs
Notesof Nikola Tesla by Richard L. Hull (jhowson4)
13. Re: Low Voltage TC (Theoretical) (Antonio Queiroz)
14. OKC Science Museum Tesla Coil (Steve White)
----------------------------------------------------------------------
Message: 1
Date: Mon, 14 May 2018 18:08:56 -0500
From: "David Rieben" <drieben@xxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Subject: Re: [TCML] GE Protective Capacitors - Part # 9L18DCL101 or
18L0009WH
Message-ID: <DDF8D89F23514595A706C596F3932D67@DavidPC>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Tedd,
"BIL" stands for Basic Impulse Level. This is like a 50 microsecond or less
fast rise pulse of the high amplitude voltage rating that the devise is
suppose to be able to withstand without sustaining damage. This extra
robusticity renders the devise more immune to lightning strikes or huge
witching surges that the entire power line infrastructure and its associated
components would surely be vulnerable to.
David Rieben
----- Original Message -----
From: "Tedd Dillard" <tedd.dillard@xxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Monday, May 14, 2018 8:43 AM
Subject: Re: [TCML] GE Protective Capacitors - Part # 9L18DCL101 or
18L0009WH
> Gentlemen,
> I am working on a coil that seems to be very close to what David has. It
> is
> based on a 10 kva pole transformer. I have built a current limiting
> ballast
> and have ganged varics so I can control current to around 40 amps an
> voltage up to 280.
> I am in the thinking phase for a SRSG and the tank capacitor. I have 3
> capacitors like the ones in this discussion. They are way too high
> capacitance at 14 microfa. But I have questions about them for education
> on my part. They are rated at 7.2 kv but there is also a rating of 95 kv
> "bil".
> Can anyone tell me what the "bil" means?
> Also if I understand the post recently the two capacitors that David has
> in series is, .25 microfa. each for a total of .125 microf. That would be
> 125 nanof.
> Teddy
>
> On May 14, 2018 8:53 AM, "David Rieben" <drieben@xxxxxxx> wrote:
>
>> Oops, I fogot. the porimary voltage is from a 14.4 kV pig.
>>
>> ----- Original Message ----- From: "Andrew Cobaugh" <
>> andrew.cobaugh@xxxxxxxxx>
>> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
>> Sent: Sunday, May 13, 2018 8:50 PM
>> Subject: Re: [TCML] GE Protective Capacitors - Part # 9L18DCL101 or
>> 18L0009WH
>>
>>
>> David,
>>>
>>> How were you series'ing these for use in your system? Floating the case
>>> of
>>> one of them, or did you happen upon the dual bushing version?
>>>
>>> Also, what is the primary voltage on your system?
>>>
>>>
>>> On Sun, May 13, 2018 at 5:33 PM, David Rieben <drieben@xxxxxxx> wrote:
>>>
>>> Hi all,
>>>>
>>>> I was just wanting to pass on to the rest of the TCML big SG coilers
>>>> the
>>>> amazing suitability that I have found of some certain GE Dielektrol
>>>> protective capacitors to be for coiling. These have been showing up on
>>>> eBay
>>>> fairly frequently as of late and are rated at 0.25 uFd @ 13,800 V(AC).
>>>>
>>>>
https://www.ebay.com/itm/GE-Capacitor-with-Dielektrol-9L18DCL101-13-8KV/
>>>> 171955634804?_trkparms=aid%3D777001%26algo%3DDISCO.FEED%
>>>> 26ao%3D1%26asc%3D50963%26meid%3Dfcbee251c09a4671967201c022e0
>>>> 0f6c%26pid%3D100651%26rk%3D1%26rkt%3D1%26%26itm%3D171955634804&_trksid=
>>>> p2481888.c100651.m4497&_trkparms=pageci%3A4e91f1f4-
>>>> 56ef-11e8-bfd1-74dbd1800d55%7Cparentrq%3A5b4518781630a9c10cbe75cafff4
>>>> bdba%7Ciid%3A1
>>>>
>>>> https://www.ebay.com/itm/GE-General-Electric-Capacitor-
>>>> with-Dielektrol-Fluid-18L0009WH-13-800V/273049284524?_trkparms=aid%
>>>> 3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D50963%26meid%
>>>> 3D90ee9bc9263f44fe9a830e47dd8b0680%26pid%3D100675%26rk%3D1%
>>>> 26rkt%3D15%26sd%3D382430499481%26itm%3D273049284524&_trksid=
>>>> p2481888.c100675.m4236&_trkparms=pageci%3A4e91f1f4-
>>>> 56ef-11e8-bfd1-74dbd1800d55%7Cparentrq%3A5b4518781630a9c10cbe75cafff4
>>>> bdba%7Ciid%3A1
>>>>
>>>> This appears to be the best current 'deals' on these units at this
>>>> time.
>>>> The original units (now discontinued from production) were PN -
>>>> 9L18DCL101
>>>> and the updated ones are PN - 18L0009WH. Due to a GREAT eBay "deal" on
>>>> three of these last year, I decided to try a pair of these (the
>>>> original
>>>> 9L18DCL101 units) in series (for 0.125 uFd @ 27,600 VAC - but measured
>>>> C
>>>> is
>>>> just over 0.13 uFd) as the main primary circuit capacitor for my ARSG
>>>> driven, big pole pig coil. Once the primary coil was properly retuned
>>>> for
>>>> the larger C than my original measured 0.113 uFd Maxwell pulse cap
>>>> unit,
>>>> these worked quite beautifully in my coil! There appears to be no
>>>> discernable heating above ambient temperature of thier guts, although
>>>> the
>>>> outer casing that is in closest proximity to the primary coil will get
>>>> a
>>>> bit warm after an extended run, obviously due to magnetic heating of
>>>> the
>>>> ferromagnetic outer casing, not losses of the internal dielectric
>>>> system. I
>>>> say this due to the fact that the discernab
>>>> le warmth of the outer casing completely disappears within a couple of
>>>> minutes following shutdown. From previous experience, I have found that
>>>> internal dielectric heating due to excessive dissipational losses that
>>>> is
>>>> felt on the outer casing of the capacitor unit takes a considerable
>>>> amount
>>>> of time to fade after shutdown. Depending upon the internal thermal
>>>> mass
>>>> of
>>>> the capcitor, this cool down can literally take hours! Even though they
>>>> are
>>>> 'used', I figure that I am actually running them at a pretty 'low
>>>> stress'
>>>> level, pushing only an absolute maximum of 16.8 kVAC RMS (about 60% of
>>>> their combined 100% duty cycle nameplate rating and usually notably
>>>> less
>>>> than this).
>>>>
>>>> It appears that these caps were designed to be used in combination with
>>>> a
>>>> distribution surge arrestor to protect the windings of LARGE motors
>>>> (that
>>>> run on a nominal input line voltage up to 13,800 volts!) from sharp
>>>> line
>>>> voltage peaks. From what I have been able to determine online, they are
>>>> constructed with a PP based "Hazy Film" dielectric system and extended
>>>> end
>>>> foil connections and like most of their medium voltage PFC cousins,
>>>> they
>>>> have internal discharge resistors to safely bleed off any residual HV
>>>> charge from the capacitor to the 'safe to handle' range within <10
>>>> minutes
>>>> after the circuit is de-energized. This is a nice feauture in my
>>>> opinion,
>>>> as it 'defangs the snake' of hidden residual charge that can creep back
>>>> up
>>>> to 'bite you' even after the terminals are shorted out with a
>>>> hot-stick,
>>>> due to dielectric memory, yet their resistance level is still high
>>>> enough
>>>> that their extra load across the cap's terminal is totally
>>>> inconsequential
>>>> to the coil's performance within
>>>> the milliseconds time frame of the charge/discharge cycling in a Tesla
>>>> coil primary circuit.
>>>>
>>>> All in all, these units appear to be constructed quite robustly, too,
>>>> both
>>>> from a mechanical as well as an electrical standpoint. So, if you
>>>> happen
>>>> to
>>>> have spotted these particular caps and are apprehensive about taking
>>>> the
>>>> leap, I can personally attest from a coiling standpoint that "the water
>>>> is
>>>> fine". ;^)
>>>>
>>>> David
>>>> _______________________________________________
>>>> Tesla mailing list
>>>> Tesla@xxxxxxxxxxxxxxxxxx
>>>> https://www.pupman.com/mailman/listinfo/tesla
>>>>
>>>>
>>>
>>>
>>> --
>>> andy
>>> _______________________________________________
>>> Tesla mailing list
>>> Tesla@xxxxxxxxxxxxxxxxxx
>>> https://www.pupman.com/mailman/listinfo/tesla
>>>
>>
>> _______________________________________________
>> Tesla mailing list
>> Tesla@xxxxxxxxxxxxxxxxxx
>> https://www.pupman.com/mailman/listinfo/tesla
>>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
------------------------------
Message: 2
Date: Mon, 14 May 2018 13:24:04 -0500
From: tesla coil <tesla.coils@xxxxxxxxx>
To: 'Tesla Coil Mailing List' <tesla@xxxxxxxxxx>
Subject: [TCML] things for sale
Message-ID: <dac827dc-a365-cd5d-ca21-376135b166e0@xxxxxxxxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi all
?? I have some things I want to sell. all plus shipping
3 NST 12,000 30ma $20ea plus shipping
2 OBITS in there original box $10ea plus shipping
2 spun toroids? 12in by 3in $75 plus shipping
10in by 2.5 in $30 plu shipping
powerstat S1144 7.5 amp variable $25 plus shipping
17 caps. .1 by 10,000 volts dc $8ea
18 caps .15 - 2000v
833 tube $50 suppose to be NOS when I got it
PL-5D22 tubes (4-250) NOS $30 boyh plus shipping
if any body in interested and need pictures please email me direct
at tesla.coils@xxxxxxxxx
thanks
alton
---
This email has been checked for viruses by Avast antivirus software.
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------------------------------
Message: 3
Date: Mon, 14 May 2018 16:53:31 -0700
From: Frank <fxrays@xxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] Strange Voltmeter Behavior
Message-ID: <CE.6A.26966.E712AFA5@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Electrostatic. Typical problem with plastic meter faces.
There are waxes out there that are static bleeding, IE conductive and
you can wax the face to help minimize the problem.
Easy to prove it is static, just mist the meter with Windex and
gently wipe it clean, the needle should drop to zero.
At 05:57 AM 10/05/2018, you wrote:
>Steve,
>
>Its and electrostatic phenomenon. I've seen this occur with some
>panel meters from electrostatic surface charges that become trapped
>on the clear plastic top surface of the meter. A significant patch
>of trapped charge attract the meter needle, causing a positional
>offset. Surface charges on many polymers, once created - possibly
>during the last time you wiped or dusted the surface - can take
>days, or even months, to dissipate.
>
>When you contacted the charged surface, you changed the distribution
>and polarity of localized surface charge patches, but did not
>eliminate them. You might try wiping the meter surface with a cloth
>dampened with a bit of soapy water or apply a bit of anti-static
>fluid to increase surface conductivity.
>
>Bert
>
>Steve White wrote:
>>In the control cabinet for my SGTC I have a Simpson 0 - 300 volts
>>AC Wide-View iron vane voltmeter measuring the voltage from the
>>wall. I briefly powered up the cabinet for a few seconds to check
>>some things and then switched it off. Then, with all power off, I
>>placed my finger over the indicator pointer of the voltmeter and
>>its movement tracked my finger movement through the clear plastic
>>cover! After this strange behavior, the pointer settled at a
>>position substantially above the zero voltage point. It settled at
>>about 30 volts with no power applied. I noticed that as time went
>>by, the pointer gradually settled back to its true zero voltage
>>point. This took about 10 minutes. I have PFC capacitors but I had
>>them switched out at the time. The only other energy storage
>>components that I can think of are the capacitors in the EMI line
>>filter bricks. I don't think it could be static electricity because
>>I tried discharging my body and the pointer still followed my finger. None
>of
>> the other voltmeters and ammeters in the control cabinet
>> display this strange behavior. Does anyone know what is going on here?
>>Steve
>>_______________________________________________
>>Tesla mailing list
>>Tesla@xxxxxxxxxxxxxxxxxx
>>https://www.pupman.com/mailman/listinfo/tesla
>>
>
>
>_______________________________________________
>Tesla mailing list
>Tesla@xxxxxxxxxxxxxxxxxx
>https://www.pupman.com/mailman/listinfo/tesla
------------------------------
Message: 4
Date: Thu, 17 May 2018 22:11:40 -0500
From: alton smith <tesla.coils@xxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: [TCML] Things for sale
Message-ID: <823B7B48-5335-4F82-B40C-7AB1D318E260@xxxxxxxxx>
Content-Type: text/plain; charset=us-ascii
Hi all
I am open to fair offers on these parts.
I have some things I want to sell. all plus shipping from louisiana.
3 NST 12,000 30ma $20ea plus shipping
3 OBITS in there original box $10ea plus shipping
powerstat S1144 7.5 amp variable $25 plus shipping
17 caps. .1 by 10,000 volts dc $8ea
18 caps .15 - 2000v $1.75 ea
833 tube $50 suppose to be NOS when I got it
PL-5D22 tubes (4-250) NOS $30 both plus shipping
if any body in interested and need pictures please email me direct
at tesla.coils@xxxxxxxxx
I am open to fair offers on these parts
thanks
alton
Sent from my iPad
------------------------------
Message: 5
Date: Sun, 20 May 2018 11:39:12 +0200
From: masque teatro <masque@xxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: [TCML] The Tesla Coil Builder's Guide to The Colorado Springs
Notes of Nikola Tesla by Richard L. Hull
Message-ID: <237B1BA7-3616-4F3C-8F54-0DC9964F7EDC@xxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Hi all,
We are researchers and scholars of Nikola Tesla.
We would like to see the book
The Tesla Coil Builder's Guide to The Colorado Springs Notes of Nikola Tesla
by Richard L. Hull
but we can not find it or buy it.
You can help us?
Lorenzo
Masque teatro
Crisalide XXV ?L?esperienza selvaggia?
c/o Teatro F?lix Guattari
via orto del fuoco, 3 - Forl?
+39.393.9707741
www.masque.it
Si evidenzia che il contenuto della presente comunicazione, nonch? dei
documenti ad essa allegati, ha carattere strettamente riservato ed ?,
pertanto, da intendersi ad uso esclusivo del destinatario. Qualora il
messaggio Le fosse pervenuto per errore, Le ricordiamo che la diffusione e
la comunicazione da parte di soggetto diverso dal destinatario sono vietate
dall'art. 616 e ss. c.p. e dal d.lgs. 196/03. In tal caso, La invitiamo a
provvedere alla distruzione della comunicazione ricevuta e a non inoltrarla
a
terzi, dandone opportuno avviso al mittente.
------------------------------
Message: 6
Date: Sun, 20 May 2018 11:38:57 -0400
From: "doug" <doug11642@xxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Subject: Re: [TCML] The Tesla Coil Builder's Guide to The Colorado
Springs Notesof Nikola Tesla by Richard L. Hull
Message-ID: <016DE97DCFCA4F6CB436A92019A56FA6@dougPCPC>
Content-Type: text/plain; format=flowed; charset="UTF-8";
reply-type=original
https://www.ebay.com/i/123077123142?chn=ps
-----Original Message-----
From: masque teatro
Sent: Sunday, May 20, 2018 5:39 AM
To: Tesla Coil Mailing List
Subject: [TCML] The Tesla Coil Builder's Guide to The Colorado Springs
Notesof Nikola Tesla by Richard L. Hull
Hi all,
We are researchers and scholars of Nikola Tesla.
We would like to see the book
The Tesla Coil Builder's Guide to The Colorado Springs Notes of Nikola Tesla
by Richard L. Hull
but we can not find it or buy it.
You can help us?
Lorenzo
Masque teatro
Crisalide XXV ?L?esperienza selvaggia?
c/o Teatro F?lix Guattari
via orto del fuoco, 3 - Forl?
+39.393.9707741
www.masque.it
Si evidenzia che il contenuto della presente comunicazione, nonch? dei
documenti ad essa allegati, ha carattere strettamente riservato ed ?,
pertanto, da intendersi ad uso esclusivo del destinatario. Qualora il
messaggio Le fosse pervenuto per errore, Le ricordiamo che la diffusione e
la comunicazione da parte di soggetto diverso dal destinatario sono vietate
dall'art. 616 e ss. c.p. e dal d.lgs. 196/03. In tal caso, La invitiamo a
provvedere alla distruzione della comunicazione ricevuta e a non inoltrarla
a
terzi, dandone opportuno avviso al mittente.
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxxxxxx
https://www.pupman.com/mailman/listinfo/tesla
------------------------------
Message: 7
Date: Tue, 22 May 2018 21:05:52 +0000
From: Jeff Behary <jeff_behary@xxxxxxxxxxx>
To: "tesla@xxxxxxxxxx" <tesla@xxxxxxxxxx>
Subject: [TCML] Tesla Technology Research
Message-ID:
<SN6PR14MB22380E98A8613E74DFA4BEDB9A940@xxxxxxxxxxxxxxxxxxxxxxxxxxx.outlook.
com>
Content-Type: text/plain; charset="iso-8859-1"
www.behary.com/TeslaTechnologyResearch<http://www.behary.com/TeslaTechnology
Research>
I moved Bill's site because the fees were getting too high. Here is the new
location of ttr.com
I will work on my own site in the near future at the same location
Tesla Technology Research<http://www.behary.com/TeslaTechnologyResearch>
www.behary.com
Tesla Technology Research manufactures Tesla Coils and provides special
effects for TV, motion picture and still Media.
------------------------------
Message: 8
Date: Sun, 20 May 2018 09:53:32 -0700
From: Ed <evp@xxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] The Tesla Coil Builder's Guide to The Colorado
Springs Notesof Nikola Tesla by Richard L. Hull
Message-ID: <de137daa-e271-202d-8427-e11899cf1c0a@xxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Have you tried contacting him through the fusor group?
*??? http://www.fusor.net/*
He may be able to help you.? I have the book but it's too long to copy?
even if I had permission.
Ed
On 5/20/2018 8:38 AM, doug wrote:
> https://www.ebay.com/i/123077123142?chn=ps
>
> -----Original Message----- From: masque teatro
> Sent: Sunday, May 20, 2018 5:39 AM
> To: Tesla Coil Mailing List
> Subject: [TCML] The Tesla Coil Builder's Guide to The Colorado Springs
> Notesof Nikola Tesla by Richard L. Hull
>
>
> Hi all,
> We are researchers and scholars of Nikola Tesla.
> We would like to see the book
>
> The Tesla Coil Builder's Guide to The Colorado Springs Notes of Nikola
> Tesla by Richard L. Hull
>
> but we can not find it or buy it.
>
> You can help us?
>
> Lorenzo
>
>
>
>
> Masque teatro
> Crisalide XXV ?L?esperienza selvaggia?
> c/o Teatro F?lix Guattari
> via orto del fuoco, 3 - Forl?
> +39.393.9707741
> www.masque.it
>
>
> Si evidenzia che il contenuto della presente comunicazione, nonch? dei
> documenti ad essa allegati, ha carattere strettamente riservato ed ?,
> pertanto, da intendersi ad uso esclusivo del destinatario. Qualora il
> messaggio Le fosse pervenuto per errore, Le ricordiamo che la
> diffusione e
> la comunicazione da parte di soggetto diverso dal destinatario sono
> vietate
> dall'art. 616 e ss. c.p. e dal d.lgs. 196/03. In tal caso, La invitiamo a
> provvedere alla distruzione della comunicazione ricevuta e a non
> inoltrarla a
> terzi, dandone opportuno avviso al mittente.
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
------------------------------
Message: 9
Date: Wed, 23 May 2018 03:11:41 +0000
From: Mr Nico <nicothefabulous@xxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] The Tesla Coil Builder's Guide to The Colorado
Springs Notesof Nikola Tesla by Richard L. Hull
Message-ID:
<CY4PR20MB133351B8A63342580D0EFE69A86B0@xxxxxxxxxxxxxxxxxxxxxxxxxxx.outlook.
com>
Content-Type: text/plain; charset="Windows-1252"
Wow that's a deal... I think I ended up with an extra copy of that some
time ago. I need to look for it in these boxes of books! But I'd better
make sure it's a spare before selling it. Took too long to find, then
suddenly won two together.
Nick A
________________________________
From: Tesla <tesla-bounces@xxxxxxxxxx> on behalf of Ed <evp@xxxxxxxxxxx>
Sent: Sunday, May 20, 2018 11:53:32 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] The Tesla Coil Builder's Guide to The Colorado Springs
Notesof Nikola Tesla by Richard L. Hull
Have you tried contacting him through the fusor group?
* http://www.fusor.net/*
He may be able to help you. I have the book but it's too long to copy
even if I had permission.
Ed
On 5/20/2018 8:38 AM, doug wrote:
> https://www.ebay.com/i/123077123142?chn=ps
>
> -----Original Message----- From: masque teatro
> Sent: Sunday, May 20, 2018 5:39 AM
> To: Tesla Coil Mailing List
> Subject: [TCML] The Tesla Coil Builder's Guide to The Colorado Springs
> Notesof Nikola Tesla by Richard L. Hull
>
>
> Hi all,
> We are researchers and scholars of Nikola Tesla.
> We would like to see the book
>
> The Tesla Coil Builder's Guide to The Colorado Springs Notes of Nikola
> Tesla by Richard L. Hull
>
> but we can not find it or buy it.
>
> You can help us?
>
> Lorenzo
>
>
>
>
> Masque teatro
> Crisalide XXV ?L?esperienza selvaggia?
> c/o Teatro F?lix Guattari
> via orto del fuoco, 3 - Forl?
> +39.393.9707741
> www.masque.it<http://www.masque.it>
>
>
> Si evidenzia che il contenuto della presente comunicazione, nonch? dei
> documenti ad essa allegati, ha carattere strettamente riservato ed ?,
> pertanto, da intendersi ad uso esclusivo del destinatario. Qualora il
> messaggio Le fosse pervenuto per errore, Le ricordiamo che la
> diffusione e
> la comunicazione da parte di soggetto diverso dal destinatario sono
> vietate
> dall'art. 616 e ss. c.p. e dal d.lgs. 196/03. In tal caso, La invitiamo a
> provvedere alla distruzione della comunicazione ricevuta e a non
> inoltrarla a
> terzi, dandone opportuno avviso al mittente.
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxxxxxx
https://www.pupman.com/mailman/listinfo/tesla
------------------------------
Message: 10
Date: Fri, 25 May 2018 09:38:32 -0500
From: David Thomson <aetherwizard@xxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] The Tesla Coil Builder's Guide to The Colorado
Springs Notesof Nikola Tesla by Richard L. Hull
Message-ID:
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If you still need a copy, contact me at aetherwizard@xxxxxxxxx.
David Thomson
2018-05-20 10:38 GMT-05:00 doug <doug11642@xxxxxxxxxxx>:
> https://www.ebay.com/i/123077123142?chn=ps
>
> -----Original Message----- From: masque teatro
> Sent: Sunday, May 20, 2018 5:39 AM
> To: Tesla Coil Mailing List
> Subject: [TCML] The Tesla Coil Builder's Guide to The Colorado Springs
> Notesof Nikola Tesla by Richard L. Hull
>
>
> Hi all,
> We are researchers and scholars of Nikola Tesla.
> We would like to see the book
>
> The Tesla Coil Builder's Guide to The Colorado Springs Notes of Nikola
> Tesla by Richard L. Hull
>
> but we can not find it or buy it.
>
> You can help us?
>
> Lorenzo
>
>
>
>
> Masque teatro
> Crisalide XXV ?L?esperienza selvaggia?
> c/o Teatro F?lix Guattari
> via orto del fuoco, 3 - Forl?
>
<https://maps.google.com/?q=via+orto+del+fuoco,+3+-+Forl%C3%AC&entry=gmail&s
ource=g>
> +39.393.9707741
> www.masque.it
>
>
> Si evidenzia che il contenuto della presente comunicazione, nonch? dei
> documenti ad essa allegati, ha carattere strettamente riservato ed ?,
> pertanto, da intendersi ad uso esclusivo del destinatario. Qualora il
> messaggio Le fosse pervenuto per errore, Le ricordiamo che la diffusione e
> la comunicazione da parte di soggetto diverso dal destinatario sono
vietate
> dall'art. 616 e ss. c.p. e dal d.lgs. 196/03. In tal caso, La invitiamo a
> provvedere alla distruzione della comunicazione ricevuta e a non
> inoltrarla a
> terzi, dandone opportuno avviso al mittente.
>
> _______________________________________________
> Tesla mailing list
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> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
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>
------------------------------
Message: 11
Date: Fri, 25 May 2018 22:44:24 +1000
From: W H <snakeprior@xxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: [TCML] Low Voltage TC (Theoretical)
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Dear List,
Long time list member but infrequent poster. I stopped build Tesla Coils a
few years back due to family commitments.
I was thinking recently about the possibility of creating a low voltage
Tesla coil using a thyristor to dump energy into a tank circuit.
I build a thyratron Tesla Coil this way 3 years ago. The thyratron simply
discharged a large capacitor over the tuned LC circuit and then switched
off again.
I had significant problems with reverse overvoltage caused by the tank
circuit. But it did work.
Anyone have any thoughts on this? It could result in very cheap Tesla Coils
if the kinks could be ironed out.
Cheers!
-Wilyarti
------------------------------
Message: 12
Date: Wed, 23 May 2018 12:07:50 -0400
From: jhowson4 <jhowson4@xxxxxxxxxxx>
To: TCML tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] The Tesla Coil Builder's Guide to The Colorado
Springs Notesof Nikola Tesla by Richard L. Hull
Message-ID: <66nrt0bfli1h7s4nd73to943.1527091671160@xxxxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
I wish I knew someone with one I could borrow to read...
Maybe I'll stumble across one one day.?
-Jay
Sent from my Verizon 4G LTE Smartphone
------ Original message------From: Mr Nico Date: Wed, May 23, 2018 7:24
AMTo: Tesla Coil Mailing List;Cc: Subject:Re: [TCML] The Tesla Coil
Builder's Guide to The Colorado Springs Notesof Nikola Tesla by Richard L.
Hull
Wow that's a deal... I think I ended up with an extra copy of that some
time ago. I need to look for it in these boxes of books! But I'd better
make sure it's a spare before selling it. Took too long to find, then
suddenly won two together.Nick A________________________________From: Tesla
on behalf of Ed Sent: Sunday, May 20, 2018 11:53:32 AMTo: Tesla Coil Mailing
ListSubject: Re: [TCML] The Tesla Coil Builder's Guide to The Colorado
Springs Notesof Nikola Tesla by Richard L. HullHave you tried contacting him
through the fusor group?* http://www.fusor.net/*He may be able to help
you. I have the book but it's too long to copyeven if I had permission.EdOn
5/20/2018 8:38 AM, doug wrote:> https://www.ebay.com/i/123077123142?chn=ps>>
-----Original Message----- From: masque teatro> Sent: Sunday, May 20, 2018
5:39 AM> To: Tesla Coil Mailing List> Subject: [TCML] The Tesla Coil
Builder's Guide to The Colorado Springs> Notesof Nikola Tesla by Richard L.
Hull>>> Hi all,> We ar
e researchers and scholars of Nikola Tesla.> We would like to see the
book>> The Tesla Coil Builder's Guide to The Colorado Springs Notes of
Nikola> Tesla by Richard L. Hull>> but we can not find it or buy it.>> You
can help us?>> Lorenzo>>>>> Masque teatro> Crisalide XXV ?L?esperienza
selvaggia?> c/o Teatro F?lix Guattari> via orto del fuoco, 3 - Forl?>
+39.393.9707741> www.masque.it>>> Si evidenzia che il contenuto della
presente comunicazione, nonch? dei> documenti ad essa allegati, ha carattere
strettamente riservato ed ?,> pertanto, da intendersi ad uso esclusivo del
destinatario. Qualora il> messaggio Le fosse pervenuto per errore, Le
ricordiamo che la> diffusione e> la comunicazione da parte di soggetto
diverso dal destinatario sono> vietate> dall'art. 616 e ss. c.p. e dal
d.lgs. 196/03. In tal caso, La invitiamo a> provvedere alla distruzione
della comunicazione ricevuta e a non> inoltrarla a> terzi, dandone opportuno
avviso al mittente.>> ___________________________
____________________> Tesla mailing list> Tesla@xxxxxxxxxxxxxxxxxx>
https://www.pupman.com/mailman/listinfo/tesla>
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Tesla@xxxxxxxxxxxxxxxxxx>
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listTesla@tedward.pupman.comhttps://www.pupman.com/mailman/listinfo/tesla___
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------------------------------
Message: 13
Date: Fri, 25 May 2018 14:08:40 -0300
From: Antonio Queiroz <acmdequeiroz@xxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Subject: Re: [TCML] Low Voltage TC (Theoretical)
Message-ID: <b0042a96-da95-f6e7-1a75-31d2232ad629@xxxxxxxxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Em 25/05/2018 09:44, W H escreveu:
> Dear List,
> Long time list member but infrequent poster. I stopped build Tesla Coils a
> few years back due to family commitments.
>
> I was thinking recently about the possibility of creating a low voltage
> Tesla coil using a thyristor to dump energy into a tank circuit.
>
> I build a thyratron Tesla Coil this way 3 years ago. The thyratron simply
> discharged a large capacitor over the tuned LC circuit and then switched
> off again.
>
> I had significant problems with reverse overvoltage caused by the tank
> circuit. But it did work.
>
> Anyone have any thoughts on this? It could result in very cheap Tesla
Coils
> if the kinks could be ironed out.
>
I posted this long ago (title a bit excessive...) and apparently started
a lot of works in solid-state coils:
http://www.capturedlightning.org/hot-streamer/temp/Probably-The-Most-Importa
nt-TCML-Post-Ever.pdf
Antonio Carlos M. de Queiroz
------------------------------
Message: 14
Date: Fri, 25 May 2018 23:57:37 -0400 (EDT)
From: Steve White <steve.white1@xxxxxxxxx>
To: Tesla Coil List <tesla@xxxxxxxxxxxxxxxxxx>
Subject: [TCML] OKC Science Museum Tesla Coil
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<617993290.296063588.1527307057147.JavaMail.zimbra@xxxxxxxxx>
Content-Type: text/plain; charset=utf-8
I was visiting my mother in Oklahoma City a few weeks ago. While there, I
visited the Oklahoma City Science Museum. The museum had a medium-sized
tesla coil enclosed in a plexiglass room. It could be operated about once a
minute for about 10 seconds. The secondary appeared to be about 4 feet tall
and about 4 inches in diameter. It had a toroid that looked like about 4" x
12". The capacitors appeared to be a bank of doorknob capacitors. It used
some kind of static spark gap which was not visible. It also had what
appeared to be the biggest NST that I have ever seen as the power source.
Spark length into free air was about 2 feet.
Does anyone know who built this coil?
Steve
------------------------------
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