[TowerTalk] ...and another coax adapter question

[Jack Brindle]

If you go to DigiKey and look up 83-1SP it shows only one manufacturer - Amphenol RF. That is the genuine part, with a Q1 price of $7.45, but it drops quickly in quantity.

I would probably look for adapters and other parts by the same company, Amphenol RF.

73,
Jack, W6FB


> On Nov 24, 2023, at 1:53 PM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
> On 11/24/2023 10:59 AM, Scott Townley wrote:
>> How do I separate the wheat from the chaff?  I have a fully equipped bench...I would think the go-to would be a TDR measurement.  Any better/additional suggestions?
> 
> Look at them carefully. If they aren't labeled Amphenol or stamped with MIL-spec numbers, they're junk.  It's all about mechanical construction. Measurements won't show it.
> 
> I've bought surplus MIL-spec adapters at ham flea-markets. Amphenol parts are sold by legacy electronics vendors like Allied, Newark, Arrow, etc. There are a few ham vendors who sell them, but many also sell junk connectors. The real thing is 2-3x more expensive. Here's one quality vendor that sells both the real thing and the junk. They don't offer quantity discounts, while the traditional electronics vendors do.
> 
> https://www.rfparts.com/sitemap
> 
> We sometimes need to study the Amphenol parts listing to know which connector to buy. For example, they manufacture the solder-type PL259 with at least 4 different part numbers, all of which start with 83-1SP. The one we want is the one with no suffix, because the body is silver plated, and thus easier to solder to.
> 
> 73, Jim K9YC
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