[TowerTalk] Hardline - PL-259

[David Gilbert]

The Watts (brand name) A-200 fitting is a 7/16" female to 3/8" tube 
compression adapter, and the 7/16" end fits perfectly on an SO-239 
barrel.   It literally is an exact match.   Not sure what you mean by a 
PL-259 barrel.

If you file the threads down just slightly on the 3/8" end (minus the 
compression nut that comes with it) of the A-200 it makes a snug fit 
INSIDE 1/2" copper plumbing tube, which in turn makes a nice fit OVER 
the copper jacket of LDF-50A 1/2" Heliax ... which was my original 
interest although I suspect something similar might be usable for 1/2" 
CATV cable.

73,
Dave   AB7E


On 9/24/2012 11:38 PM, K8RI wrote:
> On 9/25/2012 1:47 AM, David Gilbert wrote:
>>
>> I don't know about what fits or doesn't fit CATV hardline, but I do know
>> that there is a common brass fitting that fits an SO-239 barrel
>> exactly.  Check out an "A-200" fitting in the plumbing section of Home
>> Depot.
>>
>
> The half inch compression fitting is  fairly close fit to the PL259 
> barrel. Not exact but close.  Just take your coax connector into 
> Lowe's or Home Depot...or your local hardware store and you'll find 
> some that fit.
>
>
>> 73,
>> Dave  AB7E
>>
>>
>>
>> On 9/24/2012 9:00 PM, Hans Hammarquist wrote:
>>> I have s.k. TV-hard-line (70 ohms) coax that I am planning to use for
>>> my set-up. My idea was to attach some bulk-head SO-239
>
> The bulkhead connectors are threaded full length and make poor 
> adapters.  There are versions just like PL259s, but female that make 
> very good adapters to compression fittings.
>
> to the cable
>>> with the help of brass oil compression coupling (I'm told that's the
>>> way to go.) I measured the cable and the outside of the aluminium
>>> shield is 1/2 inch (give or take a few .001". The bulk-head connector
>>> seems more like 9/16" and I don't know if there is such an animal as
>>> 1/2 - 9/16" adapter around the oil couplings. (The inner conductor
>>> seems to be wide enough to fit, if I do "some magic with the inner
>>> connector.)
>>>
>>>
>>> Can I turn down the thread on a bulkhead from 9/16" to 1/2" or will
>>> that give too little material left for strength?
>
> Normally you should be able to turn the threads down as you only have 
> to take off 1/32nd of an inch and that should still leave enough 
> material be far stronger than the half inch TV coax which is itself 
> quite fragile. Bends need to be on the order of about an 18" radius 
> for safety.  The 1/2" stuff is very easy to kink.
>
> It's easier though just to find a female UHF coax connector and 
> connect it to the coax using a compression coupling.
>
>  Is there some
>>> plumbing thread that (almost) fit the SO-239 thread? Any suggestions?
>
> No.  Pipe thread is tapered and much more coarse than the threads on 
> UHF connectors.
>
> Look at the 4th and 5th photos down on 
> http://www.rogerhalstead.com/ham_files/conn.htm
> There is a female connector made exactly like the PL-259, except it's a
> female connector and it fits the compression coupling the same way. 
> It's a very easy to make adapter.
>
> Check the coax dealers and you should find the female version.
>
> 73
>
> Roger (K8RI)
>
>>>
>>>
>>> As usual, I am open for ideas. (E.g. I will move my shack to the tower
>>> so I don't need any catenary between my tower and my shack.)
>>>
>>>
>>> Hans -N2JFS
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>>
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