[TowerTalk] Right Angle Connectors

[Bob K6UJ]

Roger,

I only use Amphenol 83-1SP,  PL259's.   I believe they are the best 
going for PL-259's,
and have the white teflon insulation.  You need to be careful when 
soldering these teflon
insulated ones or you will damage the teflon from the heat as you 
mentioned.
I still have a bunch of some very old ones with brown colored 
insulation.  They had an advantage
over the new teflon insulated ones in that you could hardly hurt the 
insulator when soldering on the connector.
They would take a lot of heat.  I give these to new hams to practice 
with before they annihilate the
good (expensive) ones. :-)

73,
Bob
K6UJ


On 5/6/16 9:35 PM, Roger (K8RI) on TT wrote:
> My new Amphenol connectors use Teflon insulators which is white with a 
> waxy like feel.  Teflon handles moderate temperature and voltage well, 
> BUT, don't apply a really hot soldering to it as the byproducts 
> produced are poisonous. Clear could be plexiglass, Lexan, or ? Both 
> are good insulators, but plexiglass does not stand up well to heat.
> I just went to the shop: The surplus 90s are clearly marked Amphenol 
> in "raised" letters.  Some have clear plastic and some have a gray 
> insulator.  Please note, these are old, and that is probably well over 
> 40 years old.
>
> Teflon has at least three down sides. They are its response to very 
> high heat, it tends to "cold flow" which is not usually a problem, in 
> ham installations, and it's expensive!.  It is much more resistant to 
> center conductor migration than foam dielectric. HOWEVER Teflon makes 
> a very poor mechanically loaded insulator.
>
> My new  Amphenol connectors, UHF, N-Type, and bulkhead connectors all 
> have White Teflon insulators.
>
> "I think" you will find "really old" Amphenol PL259s have phenolic 
> insulators as they were made before Teflon was invented.  I actually 
> had some of those when I was a Novice 55 years ago.  I believe  Gary 
> was correct,when he said the good ones have the male center screws 
> into the other pin.
>
> Now days I usually use crimp connectors. They are quick, easy, and 
> mechanically stronger than the solder type PL259s.
>
> 73
>
> Roger  (K8RI)
>
>
> On 5/6/2016 Friday 9:36 PM, Don W7WLL wrote:
>> Got a lot of feedback re the subject connectors and overwhelming the 
>> suggestion was to use Amphenol parts, which I usually do (but I have 
>> a lot of inherited connectors).
>>
>> I had never paid a lot of attention to connectors for my 8, 213 and 
>> similar coax’s, but I did note that the color of the insulator 
>> varied.  After reading specs that the Amphenol used PTFE (all of my 
>> Amphenol of a later vintage appear to be clear insulation), I took a 
>> look a some of the right angles I had plus a pile of my barrels. Of 
>> those NOT marked Amphenol, almost all had no readable brand or number 
>> imprinted.  I also noticed that the insulation was either white or 
>> shades of grey.
>>
>> I’m not knowledgeable on plastics and am now curious to know what the 
>> white or grey material used in these ‘other brand’ connectors might 
>> be (I’m dangerous enough to know a lot of plastics do come in several 
>> colors).
>>
>> Don T
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