[Amps] Amps Digest, Vol 170, Issue 27

[Lee]

I'd never buy anything from a company like this.

Lee, w0vt


On 2/17/2017 2:37 PM, Jay Terleski wrote:
> Vic,
> That picture does apply,  the actual scan of that CB balun.  Of course it
> will have no chance to be a balun at lower HF band frequencies.
> The point of the product listing is to attract commercial business not to
> start a fake news article on amateur radio reflectors.
> Nobody buys a $900 Balun without talking to us first.  We then can design a
> proper balun for them with safety factors built into it.
> Sometimes we use hardline, transformer oil, and flanges. Many times they
> cost less.  Were doing qty50 800 baluns for a defense agency right now that
> are less for instance.
> But having the capability is what were trying to imply.  I don't remember
> but the choking reactance in the 11m band was thousands of Ohms.  You have
> to be careful with 31 material you put allot of loose wound turns around it
> and you have a 500 KHz balun with 5 kOhms but it dwindles to less then 300
> ohms at 30 MHz.  You have to be able to measure this of course.
>
> As a side note there are companies that duplicate our pictures which are
> intentionally shown to be wrong,  and it's fun to see them proudly showing
> off "their" baluns.
> Jay, WX0B
>
>
>
> Jay Terleski
> Array Solutions
> 214 954 7140
>
>
> On Fri, Feb 17, 2017 at 1:25 PM, Vic Rosenthal <k2vco.vic at gmail.com> wrote:
>
>> So the spec of 1.8 - 30 MHz does not apply to the balun in the photo?
>> --
>> Vic 4X6GP
>>
>> On February 17, 2017 5:41:53 PM GMT+02:00, Jay Terleski <
>> jayt at arraysolutions.com> wrote:
>>>   What your missing Jim is this is a Balun for the band below 10m 8o)  Where
>>>>   the real ampllifiers are used.
>>>>
>>>>   We sell a few of these a year to these big amp enthusiasts, and I am many
>>>>   times impressed with their knowledge of what it takes to run and maintain
>>>>   these amplifiers.  Some guys even have 3 phase running into their basements
>>>>   where they have a large power plant.
>>>>   We build these with EIA flanges too.  Also some agencies buy our bigger
>>>>   baluns for their applications.  We usually consult with them to get the
>>>>   best performance from the custom baluns for their frequency range.
>>>>
>>>>   Thanks for asking.
>>>>
>>>>   Jay, WX0B
>>>>
>>>>
>>>>   Jay Terleski
>>>>   Array Solutions
>>>>   214 954 7140
>>>>
>>>>
>>>>
>>>>
>>>>>      1. What am I missing....balun (Jim Thomson)
>>>>>
>>>>>   Message: 1
>>>>>   Date: Thu, 16 Feb 2017 09:58:50 -0800
>>>>>   From: "Jim Thomson" <jim.thom at telus.net>
>>>>>   To: <amps at contesting.com>
>>>>>   Subject: [Amps] What am I missing....balun
>>>>>   Message-ID: <B8422C4EB8114F5F8257F6CEFBF8E592 at JimPC>
>>>>>   Content-Type: text/plain;       charset="iso-8859-1"
>>>>>
>>>>>   https://www.arraysolutions.com/index.php?_route_=as-50-1din-20k
>>>>>
>>>>>   What am I missing here ?   Appears to be 2 turns through  6 x type 31
>>>>>   cores.
>>>>>   These are standard 2.4 inch OD cores.   Coax is just  RG-393.   The mess
>>>>>   of caps on the balanced end is to tune out the xl of the threaded brass
>>>>>   material used to go through each insulator.   Rated for 20 kw cw, and 40
>>>>>   kw ssb,
>>>>>   from 1.8  to 30.0 mhz.   12 x 6 x 4 inch nema box.  Box appears to be
>>>>>   aluminum.
>>>>>
>>>>>   I cant fathom how this would have enough Z or RS to be effective on any
>>>>>   band, maybe
>>>>>   10m.
>>>>>
>>>>>   Jim  VE7RF
>>>>
>>>>
>>>> ------------------------------
>>> Amps mailing list
>>> Amps at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps