Re: [time-nuts] Power connectors continued

These expensive and exotic connectors are nice but are over kill for most projects which live their entire lives on a lab bench and never fly to Mars or even Low Earth Orbit. I found out about "GX" style connectors a while back. They are multi-pin circular connectors with screw down locking

Re: [time-nuts] Power connectors continued

> > They will definitely not work loose. ODU or Glennair (I forget which) has a ratcheting lock ring on some of their connectors. It has asymmetric ramps on the ratchet cam that tighten the lock ring under vibration. -ch 73 de AI6KG On Fri, Jun 23, 2017 at 9:01 PM, Charles Steinmetz

Re: [time-nuts] Power connectors continued

Working in motorsport, we used the Deutsch Autosport series. They're based on military connectors but are lighter and possibly cheaper. Still far from cheap, but high density, high reliability and MUCH easier to assemble than Lemos. Usually crimped pins and raychem heatshrink cable entry.

Re: [time-nuts] Power connectors continued

Hi If you have a phase noise under vibration requirement, you do *not* want to use the “D connector” setup. Go with an SMA …. Bob > On Jun 24, 2017, at 7:54 PM, Didier Juges wrote: > > I have been forced to use micro-D by a customer on a military power supply, > not even

Re: [time-nuts] Power connectors continued

I have been forced to use micro-D by a customer on a military power supply, not even space rated, it was well over $100 each in 50 piece quantity (I think it was a 25 pin). However, unless they are mistreated (which is easy for the reason you listed), they seem reliable. I do not believe we have

Re: [time-nuts] Power connectors continued

This is what we use with good results Bert Kehren In a message dated 6/24/2017 12:03:09 A.M. Eastern Daylight Time, csteinm...@yandex.com writes: Someone previously mentioned "aviation" style connectors (which many will recognize as mobile microphone connectors) (see graphic below). I

Re: [time-nuts] Power connectors continued

Someone previously mentioned "aviation" style connectors (which many will recognize as mobile microphone connectors) (see graphic below). I switched to these for power and other connections long ago, and have been extremely happy with them. One nice thing about them (IMO) is that all chassis

Re: [time-nuts] Power connectors continued

I have a design rule that I've used for decades: "If it fits, it works, or it does no harm." -Original Message- Why so many connecter types? So you don't cross stuff up. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go

Re: [time-nuts] Power connectors continued

On 6/22/17 4:22 PM, William H. Fite wrote: A good friend of mine, sadly of blessed memory, was a lead engineer for Grumman on the comm systems of the lunar lander. He spoke of small space-rated multi-pin connectors that cost upward of $500 each. The Micro-D is widely used in spaceflight, and

Re: [time-nuts] Power connectors continued

Hi, Either that, or make protection schemes to save the day. If you can't come up with a protection scheme that works, then you need to move on to another connector. A crow-bar circuit and a diode for reverse-bias and a fuse could probably form sufficient protection. There is plenty of

Re: [time-nuts] Power connectors continued

I've been caught by that one. Someone used 240V IEC inlets as convenient 10A DC inputs to an oven in an ion trap. Fiddling around in the back of the racks, I made the inevitable mistake and Poof! there went $1000 worth of isotopically separated Yb 171. A few years later, someone else did the same

Re: [time-nuts] Power connectors continued

Hi … but not a Cannon connector. If you get those inserts along with a few signal leads, they are up into the $50 to $200 a pair range. They also don’t do terribly well in vibration. Bob > On Jun 22, 2017, at 8:34 PM, Arnold Tibus wrote: > > Bob, > > look to this

Re: [time-nuts] Power connectors continued

Hi: A few tips on Power Poles. 1. Super Flex wire works very well. It's typically made of of 44 AWG strands. For PCB mounting a single strand can be used for mechanical rigidity. 2. There's no rule that all the current has to be carried by a single terminal The M455-1 power supply uses

Re: [time-nuts] Power connectors continued

Bob, look to this spec. data from Amphenol found @ Mouser as example: Current Rating: power Contacts: 55 Amperes (per contact) Signal Contacts: 5 Amperes (per contact) Contact Resistance: Power Contacts: .25 milliohms max Signal Contacts: 20 milliohms max Insulation Resistance: 5000 Megohms

Re: [time-nuts] Power connectors continued

A good friend of mine, sadly of blessed memory, was a lead engineer for Grumman on the comm systems of the lunar lander. He spoke of small space-rated multi-pin connectors that cost upward of $500 each. On Thursday, June 22, 2017, Arnold Tibus wrote: > > Hello, > > I can

Re: [time-nuts] Power connectors continued

I hear what you are saying and basically agree with you. In my experience however phrases such as "25 pair amphenol connector" and "2 pin Deutsch connector" have a commonly accepted meaning in the industries I have worked in over the years. Putting these terms into Google brings up the

Re: [time-nuts] Power connectors continued

Hi You can get and use PP’s at 30 to 50A in a 12V circuit without frying them or the cable they are attached to. Doing the same with a “Cannon” connector is not at all easy ….You can also bump up to the larger PP’s and get into a couple of hundred amps. Bob > On Jun 22, 2017, at 6:54 PM,

Re: [time-nuts] Power connectors continued

Hello, I can second Magnus and want to throw in some more details. Cannon, Deutsch, Bendix, Souriau, Matrix, Amphenol, etc. etc. are (big) companies manufacturing all kind of connectors and are n o t connector type designations! Important are the type numbers of the manufacturer or higher

Re: [time-nuts] Power connectors continued

Keep in mind that there are a large variety of power pole connectors. I first encountered them in the cables and connectors used to recharge electric forklifts. Plenty big and can handle plenty of power. > On Jun 22, 2017, at 16:06, Chris Albertson wrote: > > I

Re: [time-nuts] Power connectors continued

On Thu, Jun 22, 2017 at 1:06 PM, Chris Albertson wrote: > > A really dumb idea was this guy, I heard this story secondhand. He used > A/C extension cords for speaker cables because they work well for that > purpose, but then someone plugged a speaker into a 120vac

Re: [time-nuts] Power connectors continued

I think they call these "16mm aviation plugs" in the CNC machine tool world. They are common for connecting servo or stepper motors to their controllers. they have any number of poles from 2 to 6 or more and screw rings that secure them. Usually really good quality even from Chinese eBay

Re: [time-nuts] Power connectors continued

There seem to be many variations in colloquial naming in different regions and industries. Part of the reason I prefer to deal with local vendors with a parts counter is to be able to more or less confirm that connectors match / mate properly prior to purchasing them. All the best. Mark

Re: [time-nuts] Power connectors continued

Hi, The second connect has been called "Cannon" and XLR, and is not generally recogniced as XLR, which is the product range name. Naming of the first connector as "Cannon" is at least for me and many others confusing. This is a good example how vendor name for a connector type is not a good

[time-nuts] Power connectors continued

Sorry if I have caused any un due confusion thru my perhaps incorrect use of the terms "cannon" and "XLR." The green connector with 4 separate female contacts is what I perhaps in correctly referred to as a "cannon" connector. The silver connector with 3 separate female contacts was what I