My first try.
https://www.amazon.com/Power-Plug-Socket-P308CCT-S308CCT/dp/B07K4X8C7D?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-ipad-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B07K4X8C7D
Sent from my iPad
> On Aug 21, 2019, at 12:51, jimlux <jimlux@earthlink.net> wrote:
>
>> On 8/21/19 9:30 AM, Dan Atchison via TowerTalk wrote:
>> Thanks to all who responded.
>> My original post neglected to mention I was looking for 8-pin Cinch Jones
>> inline connectors, M and F (300 series).?? I did find some on eBay and
>> ordered them at a premium.
>> For those who suggested electronics distributors - which I had prior to my
>> email - here's what I found:
>> Jameco - no eight pin and few others
>> Mouser - no eight pin and few others
>> Newark - no stock, only large quantities
>> Digikey - ditto
>> Electronics Surplus - most not in stock, 8 pin, no of course
>> Cinch Jones connectors where the defacto standard seemingly forever, but I
>> guess times have changed.
>
> The Jones plug was invented by Howard Jones in the 1930s, and saw a lot of
> use in WW II as a multipin connector, so there was a lot of surplus available
> post war. It's not surprising that some of the older ham gear was designed to
> use that connector, and it was in wide use up through the 50s, and probably
> 60s.
>
> That said, I don't know that I've seen *new* equipment using Cinch Jones
> connectors designed in the last 50 years (since 1970), except for something
> made to be compatible with earlier vintage equipment. Flat blades, no locking
> mechanism, no environmental protection. 300 series is 250V, 10A contacts,
> which isn't particularly exotic.
>
>
> I suppose, if you've got an application where there's lots of mate demate
> cycles but limited vibration, the flat blade and spring works ok - it wipes
> on mate, and it's inexpensive to manufacture.
>
> It's just that there's so many potentially better connectors out there these
> days. Things like locking capabilities, shrouded contacts, good vibration
> handling, inexpensive termination and cable manufacturing, etc.
>
>
>
>
>> Several of you responded with Anderson Powerpoles which are fine, but no
>> strain relief - at least I can't find them with strain reliefs.?? To me
>> that's an important option because I disconnect everything when the station
>> is not in use - regardless of my grounding to Motorola's R-56 standards in
>> which, as I knock on wood, I've not had a lightning strike (nice run-on
>> sentence).?? Murphy, keep your distance.
>
> Indeed, there's no powerpole "housing" with a separate cable clamp (like,
> e.g., the inexpensive circular plastic connectors). However, the "pull out
> force" for the contact, once it's inserted in the housing, is pretty high.
>
> There are panel mount configurations that interlock with the little channels
> on the powerpoles.
>
>
> So maybe the question is what strain are you looking to relieve?
>
>
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