[Boatanchors] Boatanchors Digest, Vol 136, Issue 12
Walter Treftz via Boatanchors
boatanchors at mailman.qth.net
Sun May 10 10:45:27 EDT 2015
OK, so I goofed (as usual) on the cantenna oil. For anyone buying itit will be sent drained (unless meeting personally like at a hamfest).Personally, I have a military dummy load that's sealed so never gaveloose oil a thought. I have no idea just what kind of oil is in thisparticular Cantenna (owner is a SK). I do know that in the pastguys that got a Cantenna have told me that if you go, hat in hand,to the local power company site that does transformer repairs, theyusually will give you enough transformer oil for the Cantenna sincethey probably go through drums of it a day. Now if someone will take a load of 2m mobilexcvrs off my hands from 3 estates I'll be tickled to death. At leastI found out there are a lot of readers to these web sites.73 Walt (N4GL)
On Sunday, May 10, 2015 7:35 AM, "boatanchors-request at mailman.qth.net" <boatanchors-request at mailman.qth.net> wrote:
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Today's Topics:
1. Re: [Heathkit] FS: Heath Cantenna (KA4INM)
2. Re: [Heathkit] FS: Heath Cantenna (Richard Knoppow)
3. Re: [Heathkit] FS: Heath Cantenna (Bry Carling)
4. Re: National Diamond emblem (couryhouse via Boatanchors)
5. Solder (David Knepper)
----------------------------------------------------------------------
Message: 1
Date: Sat, 09 May 2015 23:36:13 -0400
From: KA4INM <ka4inm at gmail.com>
To: boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] [Heathkit] FS: Heath Cantenna
Message-ID: <554ED22D.7000201 at gmail.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
On 05/09/2015 11:14 PM, Richard Knoppow wrote:
> I found the MFJ cantenna on their web site. The oil is about $30
> a gallon. I don't know if this includes shipping. My veterinary
> mineral oil cost about $25 a gallon. The performance of the transformer
> oil is significantly better for not much more money. I don't know what
> is used in place of the PCBs AKA Askerel, but it evidently works OK.
> PCBs are very toxic. A web search will get you more than you really
> want to know.
Question solved:
"Transformer oil or insulating oil is a highly refined mineral oil that
is stable at high temperatures and has excellent electrical insulating
properties. It is used in oil-filled transformers, some types of high
voltage capacitors, fluorescent lamp ballasts, and some types of high
voltage switches and circuit breakers. Its functions are to insulate,
suppress corona and arcing, and to serve as a coolant."
from: http://en.wikipedia.org/wiki/Transformer_oil
Although a mixture of mineral oil and polychlorinated biphenyl (PCB)
was sometimes used some, pure PCB was very expensive and used in
transformers only where a coolant that does not burn was needed such in
buildings a requirement is such places as NYC where there is no room
for sub-stations or pole transformers.
Pure PCB can easily be tested for there is no reason to guess,
mineral oil floats, but pure PCB sinks in water.
--
Ron KA4INM - Youvan's corollary:
Every action results in unwanted side effects.
------------------------------
Message: 2
Date: Sat, 09 May 2015 20:46:39 -0700
From: Richard Knoppow <1oldlens1 at ix.netcom.com>
To: boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] [Heathkit] FS: Heath Cantenna
Message-ID: <554ED49F.3030001 at ix.netcom.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
I don't think pure PCBs were used for anything. The oil used in
transformers and capacitors was mineral oil with PCBs added to improve
its performance. Oils with PCBs were very widely used in both high
power transformers and in oil filled paper capacitors intended for
either long life or high voltage or both. Most PCBs were made by
Monsanto but were used under many brand names by various manufacturers.
General Electric called them Pyranol in their products but GE was only
one of the companies to use them. It is difficult now to know if an old
capacitor was filled with an oil with PCB in it unless its marked with a
trade name. There is a great deal of infomation available on the web.
To be blunt anyone who thinks that the dangers of PCBs or mercury
or lead or cadmium are overblown needs to do some studying.
On 5/9/2015 8:36 PM, KA4INM wrote:
> On 05/09/2015 11:14 PM, Richard Knoppow wrote:
>
>> I found the MFJ cantenna on their web site. The oil is about $30
>> a gallon. I don't know if this includes shipping. My veterinary
>> mineral oil cost about $25 a gallon. The performance of the transformer
>> oil is significantly better for not much more money. I don't know what
>> is used in place of the PCBs AKA Askerel, but it evidently works OK.
>> PCBs are very toxic. A web search will get you more than you really
>> want to know.
>
> Question solved:
>
> "Transformer oil or insulating oil is a highly refined mineral oil that
> is stable at high temperatures and has excellent electrical insulating
> properties. It is used in oil-filled transformers, some types of high
> voltage capacitors, fluorescent lamp ballasts, and some types of high
> voltage switches and circuit breakers. Its functions are to insulate,
> suppress corona and arcing, and to serve as a coolant."
>
> from: http://en.wikipedia.org/wiki/Transformer_oil
>
> Although a mixture of mineral oil and polychlorinated biphenyl (PCB)
> was sometimes used some, pure PCB was very expensive and used in
> transformers only where a coolant that does not burn was needed such in
> buildings a requirement is such places as NYC where there is no room
> for sub-stations or pole transformers.
> Pure PCB can easily be tested for there is no reason to guess,
> mineral oil floats, but pure PCB sinks in water.
--
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL
------------------------------
Message: 3
Date: Sun, 10 May 2015 00:03:11 -0400
From: Bry Carling <bcarling at cfl.rr.com>
To: Richard Knoppow <1oldlens1 at ix.netcom.com>
Cc: "boatanchors at mailman.qth.net" <boatanchors at mailman.qth.net>
Subject: Re: [Boatanchors] [Heathkit] FS: Heath Cantenna
Message-ID: <CDA34E45-7A35-4191-BFDC-831D98E5D8B5 at cfl.rr.com>
Content-Type: text/plain; charset=us-ascii
Will studying give me cancer forty years later after I worked with the PCBs? :)
Best regards - Brian Carling
AF4K Crystals Co.
117 Sterling Pine St.
Sanford, FL 32773
Tel: +USA 321-262-5471
> On May 9, 2015, at 11:46 PM, Richard Knoppow <1oldlens1 at ix.netcom.com> wrote:
>
> I don't think pure PCBs were used for anything. The oil used in transformers and capacitors was mineral oil with PCBs added to improve its performance. Oils with PCBs were very widely used in both high power transformers and in oil filled paper capacitors intended for either long life or high voltage or both. Most PCBs were made by Monsanto but were used under many brand names by various manufacturers. General Electric called them Pyranol in their products but GE was only one of the companies to use them. It is difficult now to know if an old capacitor was filled with an oil with PCB in it unless its marked with a trade name. There is a great deal of infomation available on the web.
> To be blunt anyone who thinks that the dangers of PCBs or mercury or lead or cadmium are overblown needs to do some studying.
>
>> On 5/9/2015 8:36 PM, KA4INM wrote:
>>> On 05/09/2015 11:14 PM, Richard Knoppow wrote:
>>>
>>> I found the MFJ cantenna on their web site. The oil is about $30
>>> a gallon. I don't know if this includes shipping. My veterinary
>>> mineral oil cost about $25 a gallon. The performance of the transformer
>>> oil is significantly better for not much more money. I don't know what
>>> is used in place of the PCBs AKA Askerel, but it evidently works OK.
>>> PCBs are very toxic. A web search will get you more than you really
>>> want to know.
>>
>> Question solved:
>>
>> "Transformer oil or insulating oil is a highly refined mineral oil that
>> is stable at high temperatures and has excellent electrical insulating
>> properties. It is used in oil-filled transformers, some types of high
>> voltage capacitors, fluorescent lamp ballasts, and some types of high
>> voltage switches and circuit breakers. Its functions are to insulate,
>> suppress corona and arcing, and to serve as a coolant."
>>
>> from: http://en.wikipedia.org/wiki/Transformer_oil
>>
>> Although a mixture of mineral oil and polychlorinated biphenyl (PCB)
>> was sometimes used some, pure PCB was very expensive and used in
>> transformers only where a coolant that does not burn was needed such in
>> buildings a requirement is such places as NYC where there is no room
>> for sub-stations or pole transformers.
>> Pure PCB can easily be tested for there is no reason to guess,
>> mineral oil floats, but pure PCB sinks in water.
>
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
>
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------------------------------
Message: 4
Date: Sat, 09 May 2015 21:36:00 -0700
From: couryhouse via Boatanchors <boatanchors at mailman.qth.net>
To: David Knepper <collinsradio at comcast.net>, boatanchors
<boatanchors at mailman.qth.net>
Subject: Re: [Boatanchors] National Diamond emblem
Message-ID: <dol48hnio80pp6r4yc1esxlt.1431232560932 at email.android.com>
Content-Type: text/plain; charset=utf-8
Do u mean mounts on national ?radios and speakers? ?(To much collins on the ind Dave!)
Sent from my Verizon Wireless 4G LTE smartphone
-------- Original message --------
From: David Knepper <collinsradio at comcast.net>
Date: 05/09/2015 5:28 PM (GMT-07:00)
To: boatanchors <boatanchors at mailman.qth.net>
Subject: [Boatanchors] National Diamond emblem
I still have an ample supply of this emblem that is mounted on Collins speakers and radios.
It is the diamond with the NC and red background.
Thank you
David Knepper - W3CRA/W3ST
Collins Radio Association
www.collinsradio.us
Join the CRA today
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------------------------------
Message: 5
Date: Sun, 10 May 2015 07:33:27 -0400
From: "David Knepper" <collinsradio at comcast.net>
To: "boatanchors" <boatanchors at mailman.qth.net>
Subject: [Boatanchors] Solder
Message-ID: <B5A76E869ACE466DB9732D7AE5812665 at DavidPC>
Content-Type: text/plain; charset="iso-8859-1"
With the many types of solder listed on Ebay, has anyone had experience with one particular type that works well in repairing older radio equipment like Collins, of course.
Thank you
David Knepper - W3CRA/W3ST
Collins Radio Association
www.collinsradio.us
Join the CRA today
------------------------------
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End of Boatanchors Digest, Vol 136, Issue 12
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