In the below case it isnt being used as coax. Just as a capacitor.
Carl
KM1H
----- Original Message -----
From: "Bob AD5VJ" <rtnmi@sbcglobal.net>
To: "'Carl'" <km1h@jeremy.mv.com>; "'Larry K4AB'" <larry.k4ab@gmail.com>;
<amps@contesting.com>
Sent: Saturday, February 06, 2010 8:51 PM
Subject: RE: [Amps] QRO Questions
>I have a question about this thread:
>
> When you guys say 'handle' do you mean:
> Withstand without damage to the coax, or do you mean withstand the power
> without changing the dielectric constant and therefore the efficiency
> (loss)
> of the coax while maintaining the same general impedance reading at most
> of
> its length?
>
> Bob AD5VJ
>
>> -----Original Message-----
>> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
>> On Behalf Of Carl
>> Sent: Saturday, February 06, 2010 7:44 PM
>> To: Larry K4AB; amps@contesting.com
>> Subject: Re: [Amps] QRO Questions
>>
>> RG-213 can easily carry 10KV
>>
>> Carl
>>
>> ----- Original Message -----
>> From: "Larry K4AB" <larry.k4ab@gmail.com>
>> To: <amps@contesting.com>
>> Sent: Saturday, February 06, 2010 8:21 PM
>> Subject: Re: [Amps] QRO Questions
>>
>>
>> > This thread on high power coax has me interested.
>> >
>> > I gamma match the boom of my HF Yagi's for 40M using small lengths
>> > of coax as fixed capacitors.
>> > In the past, I've used RG-17 because of it's high breaking voltage,
>> but my
>> > supply of RG-17 is now gone.
>> >
>> > What type of modern coax is available with high voltage ratings?
>> >
>> > 73,
>> > Larry K4AB
>> >
>> >
>> >
>> > On Sat, Feb 6, 2010 at 7:01 PM, Carl <km1h@jeremy.mv.com> wrote:
>> >
>> >>
>> >> ----- Original Message -----
>> >> From: "Roger" <sub1@rogerhalstead.com>
>> >> To: <ka4inm@tampabay.rr.com>
>> >> Cc: "amps" <amps@contesting.com>
>> >> Sent: Saturday, February 06, 2010 2:02 PM
>> >> Subject: Re: [Amps] QRO Questions
>> >>
>> >>
>> >> >
>> >> >
>> >> > Ron Youvan wrote:
>> >> >>> There was a PTFE coax about the size of RG213 that I saw in
>> Germany
>> >> >>> (at
>> >> >>> Friedrichshafen maybe?) some time ago, but I can't remember what
>> it's
>> >> >>> called and have never seen it since. Anyone know of this stuff?
>> >> >>>
>> >> >>
>> >> >> There is a PTFE coax about the size of RG-58 with less loss
>> and
>> >> >> more
>> >> >> power handling
>> >> >> capacity than RG214 so what you mention is a lot more than
>> probable.
>> >> (as
>> >> >> is 1/4"
>> >> >> superflex) I like the Times LMR products, while not as efficient
>> as
>> >> >> above, many are "direct
>> >> >> burnable." (polyethylene jacket)
>> >> >>
>> >> > Of course PTFE gives off toxic fumes if there an arc, or if it is
>> over
>> >> > heated.
>> >> >
>> >> >
>> >> > 73
>> >> >
>> >> > Roger (K8RI)
>> >>
>> >>
>> >> I guess it may hurt a few birdies on the tower.
>> >>
>> >> Carl
>> >>
>> >> _______________________________________________
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>> >>
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