Low cost coax connectors

Actually, tie wraps have a textured surface which appears as a "ladder" being pressed onto a surface.

Properly placed lacing has very little local pressure, despite having a narrower width across the surface. Even tightly pulled, it ends up being less than tie wraps. I have seen tie wraps that impress on the surface of a coax or cable bundle quite badly, whether hand tensioned or done with the tensioning tool. The force applied far exceeds that of the lacing, which ALWAYS slips a bit during the tie off process.

Velcro is part of what burned in the disaster your previously mentioned.

SOME at NASA refer to it that way. MOST refer to it as Apollo 1, when using the Apollo moniker, and AS-204 when referring to the mission reference.

Sorry, you sombitch, but it's been around for a LONG time.

Both two and three blade cassettes have been.

There is no need to EVER tin the shield wire group of a coax end merely to hold the wires in place for a future cutting operation. There is no need to put the cable under that heat stress, and the return one gets is minimal. A good sharp blade is miles better at cutting through the shield without displacing it.

Show me a spec sheet that states that the braid on a coax termination EVER gets soldered. All I have seen has a crimped or soldered CENTER pin, and a crimped, NON-SOLDERED outer shield.

Actually, they haven't been around THAT long, but yeah, since the late seventies, and early eighties, at the height of the cable TV post wire era.

Gore's submissions were around the same time.

Oh boy! And not one that has the termination assembler tinning the braid of the coax! Particularly not ANY that have it done in a friggin' solder pot!

Bwuahahahahhaa!

Do ya think the guy is into heliostats maybe?

Look to the bottom of the page for his "mug shot".

And I thought Rich Grise was ugly!

Thanks. The next time my shoes catch fire, I'll be very careful.

John

And who painted that rock? What a cruel thing to do to a nice, perfectly helpless rock.

John

Rich Grise snipped-for-privacy@example.net posted to sci.electronics.design:

Sorry, not patentable, prior art over 20 years ago.

Jim Thompson snipped-for-privacy@My-Web-Site.com posted to sci.electronics.design:

One of the better designs that have been around for 20+ years.

My son hired one of their store managers to be his assistant manager. Seems they were forcing him to sell contracts to people living in areas the provider didn't cover. He didn't think that was quite cricket, and left.

Especially if you are in 16.7 psi pure Oxy environment. You should be careful there, even if nothing is on fire... yet.

We have all painted the hell out of the third rock from the sun.

The real question is why would he feel the need to paste a picture of it on his helieostat web page? Maybe he was eating his son's ritalin.

ChairmanOfTheBored hath wroth:

Methinks you may have missed the purpose of the tinning operation. I'm using the tinned end of the coax cable (RG188a/u) in place of a connector for Joerg's contrivance. The idea is to be cheaper than a cheap RCA phono connector. The reason the tinning has to be done before stripping is that the blob of solder that always appears at the end of the braid during tinning, needs to be removed. If it wasn't for the blob, and the need to protect the dielectric, I suppose I could strip the braid before I tin it.

I'll admit that this is not the usual procedure, and that it does create complications, such as a somewhat variable cable diameter, but it does work.

There were about 20 connector ends in the product. By eliminating the connectors, I saved about $0.10 per end, or $2/unit, which translates into about $10/unit to the customer. I think that's a good enough reason.

Sure. The SMA connector on the end of a semi-rigid coax. I'm too lazy to dig out the numbers. While it's true that most of today's connectors are crimped, such connectors are also rather pricey. I think the 100 piece price for a soldered SMA is currently about $3/ea. Incidentally, the RCA phono connector is available in crimped, but is more commonly soldered, including the shield.

I was doing battle with a rotary production stripper, hot stamp labeler, and crimper, during the 1970's. It could do coax cable, but not attach the connectors. My guess is this used machine was about 10 years old, which dates it to about 1965. Sorry, but I forgot the manufactory name. It was pneumatically actuated and initially unreliable, until I added a surge tank to the air system.

March 1999.

Everything before that was darkness.

Goodie. Maybe I should patent the "tin before cut" process?

Somehow, I never figured that you were an advocate of conservative design and a member of the orthodoxy. At various companies, I invariably run into someone trying to shoot down whatever I'm doing with cries of "It's not industry standard" or "nobody else does it that way". However, this is the first time someone has tried to shoot down one of my ideas by claiming that nobody else has patented it. Just because it's not in the specs, not standard, not patented, different, and of marginal utility, doesn't make it bad or wrong.

Termination directly to the PCB would STILL require a fixturing method. We in the industry refer to it a strain relief. With "20 connector ends in the product", strain relief would certainly be requisite.

A row of hole pairs 5/8" from the solder points, and inboard from the edge of the PCB about 3/8" should do it. Lacing cord or a lightly applied tie wrap at each location would finish it off.

Still, a poor choice for a medical product, and not likely in their spec for leakage, etc. Both RF and AC. Medical products are pretty tight in such areas.

Semi-rigid coax is tinned across 100% of its length, dipshit. Not even a contender for this argument.

Not! SMA is pretty damned expensive. When was the last time you priced them?

Also two are then required. One on the cable, and one at the PCB.

over $6.00 each at 100 pc pricing.

The cabling that gets soldered onto RCA is not dollar a foot RG-179 either.

RG-179 is rarely soldered in production operations, and designers that incorporate such operations in their designs don't last long after the failure modes start rolling in.

Usually for good reason. You could never acquire a NASA cert.

Heh, the pair of shoes I wear most commonly -- they came from Walmart, suprisingly about 5 years ago. They're slowly falling apart, obviously, but while they're still together, I always keep them tied. The low heel, and not to mention years of fatigue, have made them quite easy to slip on and off, without being uncomfortably loose while moving.

Tim

-- Deep Fryer: A very philosophical monk. Website @

That shouldn't fly anymore in CA. AFAIK consumers can return all that within 30 days, especially if it doesn't work. Then the dealer or cell provider would be left having to refurb a "slightly used" phone I guess.