Just for the record, we used RG8 years ago at K6UA's to run high voltage
everywhere to each amplifier from one central power supply. Worked fine with
SO239/PL259 connectors. The insulation is fine. Too bad Dale is now SK.
Hardy N7RT
----- Original Message -----
From: "Bill VanAlstyne W5WVO" <w5wvo@cybermesa.net>
To: "Edward Swynar" <gswynar@durham.net>; "Dr. David Kirkby"
<david.kirkby@onetel.net>; <amps@contesting.com>
Sent: Saturday, January 23, 2010 9:34 PM
Subject: Re: [Amps] which HV connector to use?]
>I have a clear recollection of being told, years ago, that the ORIGINAL
> design use model for the UHF connector series (PL-259/SO-239) was for
> connecting high DC supply voltages between transmitter modules. This was
> before Google, however., so I decided to do some checking.
>
> Turns out there is absolutely no evidence that this tale has any truth to
> it
> whatever. I could find no indication on any of a dozen different pages in
> favor of this historical assertion. This is not to say it has never been
> done before, mind you -- just that this application was not part of its
> original design concept.
>
> Here is a very good page, BTW, that covers the history and
> characdteristics,
> in simple language and photos, of most of the RF connector series in use
> today.
>
> http://ecee.colorado.edu/~kuester/Coax/connchart.htm
>
> Bill W5WVO
>
>
> --------------------------------------------------
> From: "Edward Swynar" <gswynar@durham.net>
> Sent: Thursday, January 21, 2010 7:24 AM
> To: "Dr. David Kirkby" <david.kirkby@onetel.net>; <amps@contesting.com>
> Subject: Re: [Amps] which HV connector to use?]
>
>> On 21st January, Dave wrote:
>>
>> "...With all due respect, using SO239/PL259 seems about the silliest
>> suggestion I have ever heard. I'm not saying the insulation may be
>> insufficient on some models made in the USA when they are mated, but the
>> chance of an accident must be considerably higher with those sort of
>> connectors than just about anything else in a ham shack. They are not
>> designed for that sort of use..."
>>
>> *********************************
>>
>> But it WORKS, Dave---and I hasten to add that's the sole reason that I
>> elected to employ them in this way: other methods resulted in ceaseless
>> arcing/sparking/blowing of fuses...until one day, way-back-when, I
>> stumbled
>> upon the conservative DC voltage carrying abilities of large coax &
>> matching
>> UHF connectors, relative to my application. I was sold.
>>
>> As for the accident factor, yes, that potential ALWAYS exists in Amateur
>> radio---and having said that, are you one of those who condones policies
>> apparently espoused by the ARRL anymore, by rarely (if ever) featuring
>> QST
>> technical articles whose voltage requirements might exceed 12.6 VDC...?!
>>
>> IMHO, one has to keep one's wits about one's self at ALL times in Ham
>> radio---failure to do must mean that one must have been quite "witless"
>> to
>> begin with...
>>
>> ~73!~ de Eddy VE3CUI - VE3XZ
>>
>>
>>
>>
>> _______________________________________________
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>> http://lists.contesting.com/mailman/listinfo/amps
>>
>
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