Going to the horse's mouth:
http://www.amphenolrf.com/083-1sp.html
PRODUCT SPECIFICATIONS
Insulator Material PTFE
The drawing below you reference was approved 6-30-2011.
http://www.amphenolrf.com/downloads/dl/file/id/305/product/3945/083_1sp_cust
omer_drawing.pdf
Could it be that Amphenol somewhere along the way changed the insulator
material from LCP to PTFE?
Marsh, KA5M
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
jimlux
Sent: Saturday, May 7, 2016 11:21 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Right Angle Connectors
On 5/7/16 8:54 AM, marsh@ka5m.net wrote:
> Well, Amphenol uses PTFE in their RF 83-1SP PL-259 Coaxial Connectors
> and RF 83-1AP UHF Right Angle Coaxial Adapters
>
> From DX Engineering's website:
>
one can actually go to the horse's mouth, as well:
http://www.amphenolrf.com/083-1sp.htmlAmphenol RF 83-1AP UHF Right Angle
Coaxial Adapters
"Insulator Material PTFE"
http://www.amphenolrf.com/downloads/dl/file/id/305/product/3945/083_1sp_cust
omer_drawing.pdf
which says INSULATOR - LCP
which isn't the same..
the 083-750 seems to be the only one that lists LCP as a dielectric
In UHF connectors, Amphenol seems to use:
Delrin (5) (a white plastic)
LCP (1)
PBT (5) (a sort of light tan color from the picture on the web) (083-1R,
for instance) Phenolic (21) (an even lighter tan... seems to be only crimp
connectors, the 083-58SP for RG-58, for instance) Polypropylene (1) ( a
straight crimp 4 hole flange SO-239 jack - dark brown dielectric) PTFE (23)
I have no idea what LCP is (liquid crystal polymer? - Vectran and Kevlar are
examples)
>
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Richard (Rick) Karlquist
> Sent: Saturday, May 7, 2016 9:01 AM
> To: Don W7WLL <w7wll@arrl.net>; Towertalk <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Right Angle Connectors
>
> On 5/6/2016 6:36 PM, Don W7WLL wrote:
>>
>> After reading specs that the Amphenol used PTFE
> (all of my Amphenol of a later vintage appear to be clear
> insulation)
>> Don T
>
> Where did you read that Amphenol used PTFE?
> I have never heard of that.
> BTW, PTFE is never clear, AFAIK.
>
> In any event, PTFE is greatly inferior mechanically, and has no
> electrical advantage at HF, or even UHF. It's high temperature rating
> is also of no consequence for most ham applications. I don't know why
> any knowledgeable person would even want it, except in some corner
> case like a common mode choke made with PTFE coax.
>
> Rick N6RK
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