anyone have a pole transformer for sale?14.5kv 240 input?
On Sat, Apr 13, 2019 at 8:44 PM <tesla-request@xxxxxxxxxx> wrote:
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> Today's Topics:
>
> 1. Biggg tesla coil (Steve White)
> 2. Re: High Voltage Capacitor Oil (nickobert testein)
> 3. Re: High Voltage Capacitor Oil (jimlux)
> 4. Re: High Voltage Capacitor Oil (Bert Hickman)
> 5. Re: High Voltage Capacitor Oil (Paul McGlen)
> 6. Re: New: For sale, magnet wire, transformers, capacitors,
> fans, other items (Gary Lau)
> 7. Re: New: For sale, magnet wire, transformers, capacitors,
> fans, other items (M. G.)
> 8. Re: New: For sale, magnet wire, transformers, capacitors,
> fans, other items (Futuret)
> 9. Re: New: For sale, magnet wire, transformers, capacitors,
> fans, other items (jimlux)
> 10. Re: High Voltage Capacitor Oil (Paul McGlen)
> 11. Re: High Voltage Capacitor Oil (Bert Hickman)
> 12. Re: High Voltage Capacitor Oil (Paul McGlen)
> 13. Re. (Phillip Strauss)
> 14. Re: Re. (Kurt Schraner)
> 15. This could be interesting (Daniel Kunkel)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 30 Mar 2019 00:30:55 -0400 (EDT)
> From: Steve White <steve.white1@xxxxxxxxx>
> To: Tesla Coil List <tesla@xxxxxxxxxxxxxxxxxx>
> Subject: [TCML] Biggg tesla coil
> Message-ID:
> <103803653.110541322.1553920255884.JavaMail.zimbra@xxxxxxxxx>
> Content-Type: text/plain; charset=utf-8
>
> I was just watching (again) a Youtube video of the Biggg tesla coil from
> 12 years ago in Newcastle, Oklahoma. Does anyone know if it is still
> operating?
>
> Steve White
> Cedar Rapids, Iowa
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 31 Mar 2019 22:51:58 -0700
> From: nickobert testein <nickobert.testein@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] High Voltage Capacitor Oil
> Message-ID:
> <CAKCNB29GadNFCt20LWUgVRpHcuwjbzcobFw9yRHN9eKQ=
> kZqYg@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="UTF-8"
>
> not to be dr.killhigh but it is not advisable to repair a capacitor imho.
>
> a) you would need to do this under high vacuum to ensure removing the
> residual air bubbles. dangerous and damaging if not done.
> b) depending on how long ago the fluid leaked out, oxidation could have
> taken place, compromising its performance and integrity.
> c) because you can't be sure of either of those you really can't depend on
> its rating or it safety.
>
> that said, i'd go mineral oil.
>
>
>
>
>
>
>
>
>
> <
> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon
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>
> On Thu, Mar 28, 2019 at 4:08 PM Paul McGlen <mcglen2xxx@xxxxxxxxx> wrote:
>
> > Hi All,
> > I recently acquired some Atomic Research Pulse Capacitors. They are 50kV
> > and 100nF, however, one of them was damaged and the oil has leaked out,
> so
> > I need to replace this. Does anyone know what this oil is and where I can
> > get it. If not can I replace it with high voltage transformer oil?
> >
> > Cheers.
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxxxxxx
> > https://www.pupman.com/mailman/listinfo/tesla
> >
>
> <
> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon
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> Virus-free.
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>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 1 Apr 2019 05:33:39 -0700
> From: jimlux <jimlux@xxxxxxxxxxxxx>
> To: tesla@xxxxxxxxxxxxxxxxxx
> Subject: Re: [TCML] High Voltage Capacitor Oil
> Message-ID: <980b8936-6693-7792-1ff9-78afec9d8153@xxxxxxxxxxxxx>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> On 3/28/19 12:06 PM, Paul McGlen wrote:
> > Hi All,
> > I recently acquired some Atomic Research Pulse Capacitors. They are 50kV
> > and 100nF, however, one of them was damaged and the oil has leaked out,
> so
> > I need to replace this. Does anyone know what this oil is and where I can
> > get it. If not can I replace it with high voltage transformer oil?
> >
>
> Unfortunately, you need to figure out what kind of oil it is. It could
> be any of the following likely candidates:
> 1) mineral oil (transformer oil)
> 2) Castor oil (used in Maxwell energy storage caps, it has higher
> epsilon than transformer oril)
> 3) some Askarel (PCB)
>
> it could also be something else - lots of dielectrics have been used
> over the years. The first two will burn, the third won't.
>
> The other challenge facing you is that filling the cap with oil is
> usually done with a vacuum pump to make sure there's no (microscopic)
> air bubbles in the oil, and as well, to insure that there's no water
> dissolved in the oil. Both of these lead to radically reduced dielectric
> breakdown voltage.
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Mon, 1 Apr 2019 09:57:04 -0500
> From: Bert Hickman <bert@xxxxxxxxxxxxxxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] High Voltage Capacitor Oil
> Message-ID:
> <3325276b-098d-8c26-4463-aef1bfaa5c23@xxxxxxxxxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Hi Paul,
>
> If you can provide links to images of your capacitors, especially the
> face-plate, label, or stamped info, or if you can provide manufacturer
> info and model number, there is a possibility that we can identify the
> type of dielectric fluid. Was "Atomic Research" the manufacturer or
> perhaps the application they came from?
>
> As Jim Lux indicated, a large variety of capacitor dielectric fluids and
> blends have been used in HV capacitors over the last half century. Many
> of these fluids were proprietary and not readily available to a casual
> hobbyist and others (such as PCB's) are no longer available. And some
> benzine-based "aromatic" fluids were more volatile than others, so its
> possible that the capacitor rolls may have partially dried out.
>
> The easiest fix is to try adding mineral oil and resealing it. before
> resealing, drawing a partial vacuum for 24 hours or so may help to
> remove entrapped air inside the rolls if they've partially dried out.
> Finally, if the cap is packaged in a cylindrical container, remember to
> leave a small air bubble in the cap to provide room for expansion of the
> capacitor rolls especially if you plan to use the cap for Tesla Coil
> operation. The repaired cap should be usable, but you may need to derate
> its operating voltage...
>
> Bert
>
> Paul McGlen wrote:
> > Hi All,
> > I recently acquired some Atomic Research Pulse Capacitors. They are 50kV
> > and 100nF, however, one of them was damaged and the oil has leaked out,
> so
> > I need to replace this. Does anyone know what this oil is and where I can
> > get it. If not can I replace it with high voltage transformer oil?
> >
> > Cheers.
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxxxxxx
> > https://www.pupman.com/mailman/listinfo/tesla
> >
> >
>
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Mon, 1 Apr 2019 19:53:15 +0100
> From: Paul McGlen <mcglen2xxx@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] High Voltage Capacitor Oil
> Message-ID:
> <CACE_ahRKMDUr74hP+u92PG6ubVp=
> WtPJ3woS1LteHr2ijrYsQw@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi Jim,
>
> Thanks for the info. It is definitely not PCB; stated on the label as PCB
> free. It is a clear liquid. It does burn. I have no issues filling the
> capacitor under vacuum as a research scientist I have access to a complete
> vacuum set-up. I will use the high voltage transformer oil that I have as I
> know the physical characteristics of it. Hopefully the end result will be
> close to its original capacitance. I will be running it at 11kV, so if it
> is fine up to 33kV I will be happy.
>
> Cheers
> Paul
>
> On Mon, Apr 1, 2019 at 1:33 PM jimlux <jimlux@xxxxxxxxxxxxx> wrote:
>
> > On 3/28/19 12:06 PM, Paul McGlen wrote:
> > > Hi All,
> > > I recently acquired some Atomic Research Pulse Capacitors. They are
> 50kV
> > > and 100nF, however, one of them was damaged and the oil has leaked out,
> > so
> > > I need to replace this. Does anyone know what this oil is and where I
> can
> > > get it. If not can I replace it with high voltage transformer oil?
> > >
> >
> > Unfortunately, you need to figure out what kind of oil it is. It could
> > be any of the following likely candidates:
> > 1) mineral oil (transformer oil)
> > 2) Castor oil (used in Maxwell energy storage caps, it has higher
> > epsilon than transformer oril)
> > 3) some Askarel (PCB)
> >
> > it could also be something else - lots of dielectrics have been used
> > over the years. The first two will burn, the third won't.
> >
> > The other challenge facing you is that filling the cap with oil is
> > usually done with a vacuum pump to make sure there's no (microscopic)
> > air bubbles in the oil, and as well, to insure that there's no water
> > dissolved in the oil. Both of these lead to radically reduced dielectric
> > breakdown voltage.
> >
> >
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxxxxxx
> > https://www.pupman.com/mailman/listinfo/tesla
> >
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 2 Apr 2019 18:54:06 -0400
> From: Gary Lau <glau1024@xxxxxxxxx>
> To: Futuret <futuret@xxxxxxx>, Tesla Coil Mailing List
> <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] New: For sale, magnet wire, transformers,
> capacitors, fans, other items
> Message-ID:
> <
> CAKV84baNHkwR_ntnOZGMM+PbdUQjiW6k6ofyOW-oMhNpePxkAw@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="UTF-8"
>
> Just curious - how can you have a 1150RPM sync motor running on 60 Hz
> power? Or was it designed to run on 94 Hz power? Or geared down by some
> odd ratio?
>
> Regards, Gary Lau
> MA, USA
>
> On Sat, Mar 30, 2019 at 2:05 PM Futuret via Tesla <tesla@xxxxxxxxxx>
> wrote:
>
> > I've listed more items on ebay: Magnet wire, 20awg, 26awg, 28awg,filter
> > capacitors, HV oil capacitors, control transformer, 1150 rpm
> > motor, synchronous motor (not suitable for synchronous rotary gap because
> > it'sa hysteresis type motor that always starts in a different phase
> > position,also it has very low torque), 15 Henry choke, strong muffin
> fans,
> > tubesockets, filament transformers.
> >
> >
> https://www.ebay.com/sch/teslarian/m.html?item=222188808445&hash=item33bb7c28fd%3Ag%3AY~8AAOxyuuJR3veX&rt=nc&_trksid=p2047675.l2562
> >
> > Thanks,John
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxxxxxx
> > https://www.pupman.com/mailman/listinfo/tesla
> >
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 2 Apr 2019 23:14:32 +0000 (UTC)
> From: "M. G." <megavoltgeek@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>, Futuret
> <futuret@xxxxxxx>
> Subject: Re: [TCML] New: For sale, magnet wire, transformers,
> capacitors, fans, other items
> Message-ID: <412147758.15524075.1554246872669@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=UTF-8
>
> A 6 pole motor runs at 1200 rpmWith slip I think it is 1150
>
>
> Sent from Yahoo Mail for iPhone
>
>
> On Tuesday, April 2, 2019, 6:54 PM, Gary Lau <glau1024@xxxxxxxxx> wrote:
>
> Just curious - how can you have a 1150RPM sync motor running on 60 Hz
> power?? Or was it designed to run on 94 Hz power?? Or geared down by some
> odd ratio?
>
> Regards, Gary Lau
> MA, USA
>
> On Sat, Mar 30, 2019 at 2:05 PM Futuret via Tesla <tesla@xxxxxxxxxx>
> wrote:
>
> > I've listed more items on ebay:? Magnet wire, 20awg, 26awg, 28awg,filter
> > capacitors, HV oil capacitors, control transformer, 1150 rpm
> > motor, synchronous motor (not suitable for synchronous rotary gap because
> > it'sa hysteresis type motor that always starts in a different phase
> > position,also it has very low torque), 15 Henry choke, strong muffin
> fans,
> > tubesockets, filament transformers.
> >
> >
> https://www.ebay.com/sch/teslarian/m.html?item=222188808445&hash=item33bb7c28fd%3Ag%3AY~8AAOxyuuJR3veX&rt=nc&_trksid=p2047675.l2562
> >
> > Thanks,John
> > _______________________________________________
> > 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: 8
> Date: Wed, 3 Apr 2019 00:03:17 +0000 (UTC)
> From: Futuret <futuret@xxxxxxx>
> To: tesla@xxxxxxxxxx
> Subject: Re: [TCML] New: For sale, magnet wire, transformers,
> capacitors, fans, other items
> Message-ID: <1992959924.15806840.1554249797453@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=UTF-8
>
> Gary,??
> As Megageek stated, it must be a 6 pole motor with the slip reducingthe
> speed to 1150 rpm.? The spec plate says 60 Hz.? There are no gears.The 1150
> rpm motor is not the synchronous motor, there are twodifferent motors for
> sale.? ?
> John??
>
>
> -----Original Message-----
> From: Gary Lau <glau1024@xxxxxxxxx>
> To: Futuret <futuret@xxxxxxx>; Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Sent: Tue, Apr 2, 2019 6:54 pm
> Subject: Re: [TCML] New: For sale, magnet wire, transformers, capacitors,
> fans, other items
>
> Just curious - how can you have a 1150RPM sync motor running on 60 Hz
> power?? Or was it designed to run on 94 Hz power?? Or geared down by some
> odd ratio?
>
> Regards, Gary Lau
> MA, USA
>
> On Sat, Mar 30, 2019 at 2:05 PM Futuret via Tesla <tesla@xxxxxxxxxx>
> wrote:
>
> > I've listed more items on ebay:? Magnet wire, 20awg, 26awg, 28awg,filter
> > capacitors, HV oil capacitors, control transformer, 1150 rpm
> > motor, synchronous motor (not suitable for synchronous rotary gap because
> > it's a hysteresis type motor that always starts in a different phase
> > position,also it has very low torque), 15 Henry choke, strong muffin
> fans,
> > tubesockets, filament transformers.
> >
>
>
>
> ------------------------------
>
> Message: 9
> Date: Tue, 2 Apr 2019 18:14:43 -0700
> From: jimlux <jimlux@xxxxxxxxxxxxx>
> To: tesla@xxxxxxxxxxxxxxxxxx
> Subject: Re: [TCML] New: For sale, magnet wire, transformers,
> capacitors, fans, other items
> Message-ID: <ee523a9a-7793-116a-5528-cf81c1175db8@xxxxxxxxxxxxx>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> On 4/2/19 3:54 PM, Gary Lau wrote:
> > Just curious - how can you have a 1150RPM sync motor running on 60 Hz
> > power? Or was it designed to run on 94 Hz power? Or geared down by some
> > odd ratio?
> >
>
> I'll bet it's two different motors. There *is* a comma between them, viz
> the book "Eats, Shoots & Leaves", which I highly recommend:
> https://en.wikipedia.org/wiki/Eats,_Shoots_%26_Leaves
>
> On the other hand, this is the TCML and people do build weird stuff.
> Maybe he was building a tesla coil organ with a rotary gap and that just
> worked out right for middle C or something.
>
>
>
> ------------------------------
>
> Message: 10
> Date: Thu, 4 Apr 2019 19:43:26 +0100
> From: Paul McGlen <mcglen2xxx@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] High Voltage Capacitor Oil
> Message-ID:
> <CACE_ahSBC_=
> dGqeBU+LwJST13jNQiG+ewXBsTu8JdXZ28_S9dQ@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi Bert,
>
> Thanks for the response.
>
> This is the information that I have:
> It's a Maxwell (now General Atomic - model 37330, using their proprietary
> "oil". Impregnant: BTDP
>
> Regards
> Paul
>
> On Mon, Apr 1, 2019 at 10:04 PM Bert Hickman <bert@xxxxxxxxxxxxxxxxxxxxx>
> wrote:
>
> > Hi Paul,
> >
> > If you can provide links to images of your capacitors, especially the
> > face-plate, label, or stamped info, or if you can provide manufacturer
> > info and model number, there is a possibility that we can identify the
> > type of dielectric fluid. Was "Atomic Research" the manufacturer or
> > perhaps the application they came from?
> >
> > As Jim Lux indicated, a large variety of capacitor dielectric fluids and
> > blends have been used in HV capacitors over the last half century. Many
> > of these fluids were proprietary and not readily available to a casual
> > hobbyist and others (such as PCB's) are no longer available. And some
> > benzine-based "aromatic" fluids were more volatile than others, so its
> > possible that the capacitor rolls may have partially dried out.
> >
> > The easiest fix is to try adding mineral oil and resealing it. before
> > resealing, drawing a partial vacuum for 24 hours or so may help to
> > remove entrapped air inside the rolls if they've partially dried out.
> > Finally, if the cap is packaged in a cylindrical container, remember to
> > leave a small air bubble in the cap to provide room for expansion of the
> > capacitor rolls especially if you plan to use the cap for Tesla Coil
> > operation. The repaired cap should be usable, but you may need to derate
> > its operating voltage...
> >
> > Bert
> >
> > Paul McGlen wrote:
> > > Hi All,
> > > I recently acquired some Atomic Research Pulse Capacitors. They are
> 50kV
> > > and 100nF, however, one of them was damaged and the oil has leaked out,
> > so
> > > I need to replace this. Does anyone know what this oil is and where I
> can
> > > get it. If not can I replace it with high voltage transformer oil?
> > >
> > > Cheers.
> > > _______________________________________________
> > > 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: 11
> Date: Sat, 6 Apr 2019 21:22:06 -0500
> From: Bert Hickman <bert@xxxxxxxxxxxxxxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] High Voltage Capacitor Oil
> Message-ID:
> <75a8c84f-6ca0-88e9-079e-976d4399ef79@xxxxxxxxxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Hi Paul,
>
> Thanks - that info was a big help.
>
> BTDP is Maxwell's abbreviation for benzyltoluene/diphenylethane, a
> mixture of benzyltoluene (CAS 27776-01-8, 60%) and diphenylethane (CAS
> 612-00-0, 40%) by molecular weight. BTDP was a low-flammability
> low-viscosity alternative to PCB's that was introduced in the 1980's for
> high-voltage capacitors. It absorbs hydrogen gas (which is liberated
> during partial discharges/corona under oil) better than mineral oils,
> and it has a significantly higher static dielectric constant than
> mineral oil. Commercially-available formulations that have a similar
> mixture included Jarylec C100, and Nisseki SAS-40E, or SAS-60E.
>
> I don't know these are readily available to private customers. So... if
> you can't get any of the above dielectric fluids, substitute mineral oil
> and hope for the best. :)
>
> Could you please let us know the results of your repair. Other folks on
> the Pupman list may also have pulse caps with damaged cases.
>
> And, good luck!
>
> Bert
>
>
> Paul McGlen wrote:
> > Hi Bert,
> >
> > Thanks for the response.
> >
> > This is the information that I have:
> > It's a Maxwell (now General Atomic - model 37330, using their proprietary
> > "oil". Impregnant: BTDP
> >
> > Regards
> > Paul
> >
> > On Mon, Apr 1, 2019 at 10:04 PM Bert Hickman <bert@xxxxxxxxxxxxxxxxxxxxx
> >
> > wrote:
> >
> >> Hi Paul,
> >>
> >> If you can provide links to images of your capacitors, especially the
> >> face-plate, label, or stamped info, or if you can provide manufacturer
> >> info and model number, there is a possibility that we can identify the
> >> type of dielectric fluid. Was "Atomic Research" the manufacturer or
> >> perhaps the application they came from?
> >>
> >> As Jim Lux indicated, a large variety of capacitor dielectric fluids and
> >> blends have been used in HV capacitors over the last half century. Many
> >> of these fluids were proprietary and not readily available to a casual
> >> hobbyist and others (such as PCB's) are no longer available. And some
> >> benzine-based "aromatic" fluids were more volatile than others, so its
> >> possible that the capacitor rolls may have partially dried out.
> >>
> >> The easiest fix is to try adding mineral oil and resealing it. before
> >> resealing, drawing a partial vacuum for 24 hours or so may help to
> >> remove entrapped air inside the rolls if they've partially dried out.
> >> Finally, if the cap is packaged in a cylindrical container, remember to
> >> leave a small air bubble in the cap to provide room for expansion of the
> >> capacitor rolls especially if you plan to use the cap for Tesla Coil
> >> operation. The repaired cap should be usable, but you may need to derate
> >> its operating voltage...
> >>
> >> Bert
> >>
> >> Paul McGlen wrote:
> >>> Hi All,
> >>> I recently acquired some Atomic Research Pulse Capacitors. They are
> 50kV
> >>> and 100nF, however, one of them was damaged and the oil has leaked out,
> >> so
> >>> I need to replace this. Does anyone know what this oil is and where I
> can
> >>> get it. If not can I replace it with high voltage transformer oil?
> >>>
> >>> Cheers.
> >>> _______________________________________________
> >>> 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: 12
> Date: Sun, 7 Apr 2019 14:12:08 +0100
> From: Paul McGlen <mcglen2xxx@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] High Voltage Capacitor Oil
> Message-ID:
> <CACE_ahRNHCuv9mJXR=
> yfErJWfVPbcdbHTL01u8J8H3XtcPB8ew@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi Bert,
>
> Thanks for all of the info; appreciated. Looked at getting some BTDP. After
> much research I can get it, but only in bulk, so I have decided to go with
> the high voltage transformer oil. I will degas it under vacuum for 24
> hours. I will then fill the repaired capacitor allowing an expansion space,
> so not quite to the top. Once it has been filled I will further degas under
> an Argon atmosphere. I do not expect to be able to rely on the repaired
> capacitor being the original voltage rating of 50kV; be good if it's 30kV.
>
> Thanks!
> Paul
>
> On Sun, Apr 7, 2019 at 3:52 AM Bert Hickman <bert@xxxxxxxxxxxxxxxxxxxxx>
> wrote:
>
> > Hi Paul,
> >
> > Thanks - that info was a big help.
> >
> > BTDP is Maxwell's abbreviation for benzyltoluene/diphenylethane, a
> > mixture of benzyltoluene (CAS 27776-01-8, 60%) and diphenylethane (CAS
> > 612-00-0, 40%) by molecular weight. BTDP was a low-flammability
> > low-viscosity alternative to PCB's that was introduced in the 1980's for
> > high-voltage capacitors. It absorbs hydrogen gas (which is liberated
> > during partial discharges/corona under oil) better than mineral oils,
> > and it has a significantly higher static dielectric constant than
> > mineral oil. Commercially-available formulations that have a similar
> > mixture included Jarylec C100, and Nisseki SAS-40E, or SAS-60E.
> >
> > I don't know these are readily available to private customers. So... if
> > you can't get any of the above dielectric fluids, substitute mineral oil
> > and hope for the best. :)
> >
> > Could you please let us know the results of your repair. Other folks on
> > the Pupman list may also have pulse caps with damaged cases.
> >
> > And, good luck!
> >
> > Bert
> >
> >
> > Paul McGlen wrote:
> > > Hi Bert,
> > >
> > > Thanks for the response.
> > >
> > > This is the information that I have:
> > > It's a Maxwell (now General Atomic - model 37330, using their
> proprietary
> > > "oil". Impregnant: BTDP
> > >
> > > Regards
> > > Paul
> > >
> > > On Mon, Apr 1, 2019 at 10:04 PM Bert Hickman <
> bert@xxxxxxxxxxxxxxxxxxxxx
> > >
> > > wrote:
> > >
> > >> Hi Paul,
> > >>
> > >> If you can provide links to images of your capacitors, especially the
> > >> face-plate, label, or stamped info, or if you can provide manufacturer
> > >> info and model number, there is a possibility that we can identify the
> > >> type of dielectric fluid. Was "Atomic Research" the manufacturer or
> > >> perhaps the application they came from?
> > >>
> > >> As Jim Lux indicated, a large variety of capacitor dielectric fluids
> and
> > >> blends have been used in HV capacitors over the last half century.
> Many
> > >> of these fluids were proprietary and not readily available to a casual
> > >> hobbyist and others (such as PCB's) are no longer available. And some
> > >> benzine-based "aromatic" fluids were more volatile than others, so its
> > >> possible that the capacitor rolls may have partially dried out.
> > >>
> > >> The easiest fix is to try adding mineral oil and resealing it. before
> > >> resealing, drawing a partial vacuum for 24 hours or so may help to
> > >> remove entrapped air inside the rolls if they've partially dried out.
> > >> Finally, if the cap is packaged in a cylindrical container, remember
> to
> > >> leave a small air bubble in the cap to provide room for expansion of
> the
> > >> capacitor rolls especially if you plan to use the cap for Tesla Coil
> > >> operation. The repaired cap should be usable, but you may need to
> derate
> > >> its operating voltage...
> > >>
> > >> Bert
> > >>
> > >> Paul McGlen wrote:
> > >>> Hi All,
> > >>> I recently acquired some Atomic Research Pulse Capacitors. They are
> > 50kV
> > >>> and 100nF, however, one of them was damaged and the oil has leaked
> out,
> > >> so
> > >>> I need to replace this. Does anyone know what this oil is and where I
> > can
> > >>> get it. If not can I replace it with high voltage transformer oil?
> > >>>
> > >>> Cheers.
> > >>> _______________________________________________
> > >>> 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
> > >
> > >
> >
> >
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxxxxxx
> > https://www.pupman.com/mailman/listinfo/tesla
> >
>
>
> ------------------------------
>
> Message: 13
> Date: Fri, 12 Apr 2019 16:48:50 +0000 (UTC)
> From: Phillip Strauss <pstrauss1947@xxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Subject: [TCML] Re.
> Message-ID: <1894973256.1221689.1555087730774@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=UTF-8
>
>
> Hello Steve,
> Just remembered your post to the list on 30th September regarding Kevin
> Eldridge's BIGGG coil of Oklahoma. I too watch it repeatedly on You-tube
> and to my way of thinking, it generates the most iconic streamers of the
> lot to the extent that I paid homage with a 12" 100 bps (UK) SRSG coil, a
> kind of humble "son of BIGGG" (imitation being the sincerest form of
> flattery).?No comparison with the real deal of course and I look forward to
> seeing the leviathan fired up again in the foreseeable future.
> Regards,Phillip.
>
>
>
> _____________________________________________________________________________
>
> 14 Broad Street, Stamford, Lincs PE9 1PG?
>
> Tel: 01780 753008
>
> ------------------------------
>
> Message: 14
> Date: Sat, 13 Apr 2019 09:59:21 +0200
> From: "Kurt Schraner" <k.schraner@xxxxxxxxxxx>
> To: "'Phillip Strauss'" <pstrauss1947@xxxxxxxxx>, "'Tesla Coil
> Mailing
> List'" <tesla@xxxxxxxxxx>
> Subject: Re: [TCML] Re.
> Message-ID: <000001d4f1ce$cde1c7b0$69a55710$@datacomm.ch>
> Content-Type: text/plain; charset="utf-8"
>
> Hello Phillip,
> Nice to hear you again! Can you perhaps post some link to your <<Kind of
> humble "son of BIGGG">> ? - I wonder, if the Swiss-made toroid is yet doing
> it's service at this coil ... ;-)
> Best Regards, Kurt
>
> -----Urspr?ngliche Nachricht-----
> Von: Tesla <tesla-bounces@xxxxxxxxxx> Im Auftrag von Phillip Strauss via
> Tesla
> Gesendet: Freitag, 12. April 2019 18:49
> An: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Betreff: [TCML] Re.
>
>
> Hello Steve,
> Just remembered your post to the list on 30th September regarding Kevin
> Eldridge's BIGGG coil of Oklahoma. I too watch it repeatedly on You-tube
> and to my way of thinking, it generates the most iconic streamers of the
> lot to the extent that I paid homage with a 12" 100 bps (UK) SRSG coil, a
> kind of humble "son of BIGGG" (imitation being the sincerest form of
> flattery). No comparison with the real deal of course and I look forward to
> seeing the leviathan fired up again in the foreseeable future.
> Regards,Phillip.
>
>
>
> _____________________________________________________________________________
>
> 14 Broad Street, Stamford, Lincs PE9 1PG
>
> Tel: 01780 753008
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
>
>
>
> ------------------------------
>
> Message: 15
> Date: Sat, 13 Apr 2019 20:26:34 -0500
> From: Daniel Kunkel <dankunkel@xxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: [TCML] This could be interesting
> Message-ID:
> <
> CAA7NYCeVkw_KyKS0HpvwkqXnDDQRtenmOhU8B1DjaTZwnVf9Dg@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="UTF-8"
>
> This was posted on one the Tesla groups I am in on Facebook. I have no
> affiliation what so ever with the author. But he is hosting some type of
> conference all to either discuss Tesla Magnifier design or his book about
> the same subject.
> ~Dan (no this is not spam)
> Kansas City area
>
> 1) Here is a link to the book (has anyone read this? is it any good?)
>
> https://www.amazon.com/Teslas-Magnifying-Transmitter-recreating-dream/dp/1793151040/ref=sr_1_fkmrnull_1?keywords=Ernst+Willem+van+den+Bergh&qid=1555204944&s=gateway&sr=8-1-fkmrnull
>
>
> 2) Here is the post in full with the info to the conference call:
> LIVE CALL COMING UP WITH ERNST WILLEM VAN DEN BERGH - TESLA'S MAGNIFYING
> TRANSMITTER: RECREATING TESLA'S DREAM
>
> On Sunday, April 14th at 3pm Pacific Daylight Savings Time, we'll have a
> live call with Ernst Willem van den Bergh who authored the book Tesla's
> Magnifying Transmitter: Recreating Tesla's Dream. This will follow a
> similar format to Eric Dollard's live calls - intro, announcements,
> overview and eventually we'll open up for questions from anyone who calls
> in. You can join us on this telephone conference call at: 1-857-232-0155
> and the pin code is: 582590
>
> Ernst Willem van den Bergh is a long time researcher in the Tesla sciences
> and he has contributed to Energetic Forum - Forum Display for a long time.
> He has come out with a new book that details his work in this field. After
> sending a copy to Eric Dollard, Eric indicated that Ernst has actually
> shown two things that nobody else has.
>
> There is an entire section dedicated to communicating this to the layman so
> even if you don't have a technical background, this book is still for you.
> Learn more here: Tesla's Magnifying Transmitter: Recreating Tesla's Dream -
> A & P Electronic Media
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
>
>
> ------------------------------
>
> End of Tesla Digest, Vol 137, Issue 1
> *************************************
>
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