Along with the Anderson power poles, here is another bad choice for
connector... the multi pin thing that is now used on computers for serial
and parallel interface (in some pin number or other) was a stupid choice on
computers and is even worse on a ham rig. My electronic engineer tells me
I am surprised that you suggest these D connectors will only withstand
25 connections and disconnections. What do you suggest would be
better? Many ham radios (including my FT-817) and other gear use the
awful mini-DIN connectors with tiny pins that are about the thickness
of a piece of wire. An
I found this specification sheet
http://www.erni.com/DB/PDF/TMC/ERNI-TMC-Connectors-e.pdf which
suggests that these connectors are good for 200 mating cycles (bet
that doesn't get past the spam filter!) That's more than enough for
me, though I see a 500 cycle rated version is also available.
In a recent message, Charles Harpole [EMAIL PROTECTED] wrote ...
but much more than reliability is the issue of USE-ABILITY. The K3 is
a field radio and under the most remote and demanding condx, anderson
Powerpole and these D thingies are the first frustrations
Are you suggesting that
A stupid choice? In my meager 18 year IT Electronics career I've never
seen a D-sub failure beyond mashed pins (which was due to operator error
or abuse). I've seen these go through hundreds of matings with no
problem. Also, you can still get these connectors at Radio Shaft, so I
think it's a
Somebody mentioned the reliability of military connectors. One well-known
military connector (Pattern 105 series) used in millions has a 500 insertions
limit. Reliability is calculated from a change of resistance beyond a given
limit at a given current, ambient temperature, etc. Most
Charles Harpole wrote:
So called D connectors have design specifications issued by
various mfg of them. Most list a limited life of 10 to 30 plug/unplug
cycles. That is from the designers. Of course, hams often push
design specs well beyond those published...
10-30 plug/unplug cycles
Kind of silly, I have regular normal D connectors that
have worked fine after many thousands or connects
and disconnects.
I cant say I ever had a problem with the old stuff, it's the new
stuff that lasts a month, like cell phone charger hookups.
Brett
N2DTS
Brett writes:
Kind of silly, I have regular normal D connectors that
have worked fine after many thousands or connects
and disconnects.
I tend to agree... my 1972-era PDP-11 systems all have
D-shell connectors for most I/O, and guess what, they
still work fine. And yeah, that's slightly
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This is whole argument is ridiculous!
ANYBODY, who mates and de-mates a sub-D connector more than 50 times
needs to sit down and take a serious look at their operating practices.
A Cinch-Jones accessory connector? Come on! Why is the ridiculous Molex
Come on! Why is the ridiculous Molex
connector considered a standard? Not because it's any better than the
APP but because it's what the manufacturers could get for pennies per
connector.
I designed a CNC control in the middle 70's and we used Molex
connectors for DC power connections to the
In a message dated 8/29/07 7:38:51 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
You can go to Circuit
City and purchase an SVGA extension cable, cut off one end and you have
a prefab cable (no connector soldering).
Don't even have to do that. As flat-panel displays have become
but much more than reliability is the issue of USE-ABILITY. The K3 is
a field radio and under the most remote and demanding condx, anderson
Powerpole and these D thingies are the first frustrations
UNLESS
For those who think the D and Anderson connectors are such a big
problem,
At 03:59 AM 8/29/2007, Charles Harpole wrote...
So called D connectors have design specifications issued by
various mfg of them. Most list a limited life of 10 to 30 plug/unplug
cycles. That is from the designers.
You must be looking at some cheap Chinese clone. Please cite the other
Cinch Jones made sense back when you needed pins to handle 10 or 15 amps
of filament supply and manufacturing couldn't technically or
economically produce some of the connectors we have today. It's an
antiquated connector for things like audio and control lines.
I always thought the Molex
The JA folks who gave us DIN connectors
This made me chuckle. DIN stands for Deutsche Industrie Norm ... it
was the DL folks who created them :-) The original 3- and 5-pin
connectors have been used on audio gear since the 50s, and have
*always* been a nuisance to solder :-)
The D series of
I THINK that the K3 accessory connector is a standard 15-pin
high density D-sub female connector. Is this correct? The
connector in the photo only has 14 pins. I'm placing an
order to Mouser and I want to go ahead and get a couple of
male connectors. The HD-15 D-sub male is Mouser
I THINK that the K3 accessory connector is a standard 15-pin high density
D-sub female connector. Is this correct?
Yes, it is. DE-15P is the mating connector.
73,
Lyle KK7P
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