Re: [Elecraft] K3 just goes off - SOLVED

2012-06-25 Thread Rick Bates
Apparently, based on the input here, I'm doing it all wrong by crimp and solder. But since I started that, I've not had a failure (back when Molex was king). Most times the actual connection is secured from motion (not vibration) while the tails are allowed to move, if needed. Yes, I use the pro

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-25 Thread Adrian
s. > 73, Fred > > -Original Message- > From:elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Adrian > Sent: Monday, June 25, 2012 2:41 PM > To:elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3 just goes off - SOLVED > >

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-25 Thread Adrian
As far as I know Teflon is a good insulator, capable of high temperatures and pressures. If you say teflon wire, you give it the false interpretation of being a conductor., like the guy that said solder was a "poor"" conductor, really? I did volt drop tests , I have professional crimp sets and

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-25 Thread Fred Townsend
ecraft] K3 just goes off - SOLVED And if one uses silver based solder? Nope I don't and won't until I need to resupply; which will be quite a while from now. Rick wa6nhc Tiny iPhone keypad, sorry for typos On Jun 24, 2012, at 4:21 PM, "Ron D'Eau Claire" wrote: > D

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread Fred Jensen
I have been told, sometimes by reliable sources, that proper crimping actually pressure welds the contact to the copper wire. Soldering on the other hand heats the copper to around 750F and it then cools fairly fast which hardens it. Then, under vibration, it fatigues and breaks. I've heard t

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread Rick Bates
And if one uses silver based solder? Nope I don't and won't until I need to resupply; which will be quite a while from now. Rick wa6nhc Tiny iPhone keypad, sorry for typos On Jun 24, 2012, at 4:21 PM, "Ron D'Eau Claire" wrote: > Does anyone have actual measurements to indicate that one is *

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread hawley, charles j jr
I agree about the inexpensive crimping tools...possibly not about prohibitively expensive. A small array of adequate crimping tools can cost several hundred dollars which I don't think is too much when you consider the money spent on just one high end transceiver. I think those flat plate crimpe

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread Don Wilhelm
Crimps are good if they are properly done with proper sized terminals and proper crimping tools for that type and size of terminal - there is no "one size fits all" crimping tool, and I believe there lies the problem with amateurs using crimped terminals - buying the proper crimping tool for ea

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread hawley, charles j jr
You've hit on why the auto industry uses crimp also (probably because of cost as much as anything too). When a wire is soldered, a bit of the solder tins up the wire strands and vibration or flexing can quickly cause the wire to break and negate the reason we use stranded wire in the first place

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread Hisashi T Fujinaka
What does the maritime industry use? Anyone work at Boeing who can tell me why they (I think) crimp instead of solder? I thought I remembered that it's because crimps are stronger over the long-term under vibration. I could be making it all up. I'm just curious if there's a reason or if people are

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread Ron D'Eau Claire
Does anyone have actual measurements to indicate that one is *significantly* better than the other? Solder may not be as good a conductor as copper, but we're talking about a fraction of a millimeter of solder covering the entire mating surface of the cable and connector through which the current

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread hawley, charles j jr
A properly done crimp is better electrically than solder. For one thing, solder is not a very good conductor. A proper crimp is actually a weld joining the wire to the terminal. Sent from my iPad On Jun 24, 2012, at 1:13 PM, "Rick Bates" wrote: > I am not a fan of Powerpole connectors, but us

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread hawley, charles j jr
Absolutely. I bought a power cable from West Mountain and one of the leads (the red one) just fell out of the crimp connector. So much for trusting the "professional". I do all of my crimps now and do not solder any. I use the best crimp tool. Sent from my iPad On Jun 24, 2012, at 11:34 AM, "W0

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread Rick Bates
I am not a fan of Powerpole connectors, but use them for compatibility to other ham gear. I think they're better than Molex (as an example) but they are not mechanically secure enough (no locking tab) without adding an external piece (I tape the crap out of the attached connectors). For high c

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread KQ8M
Active 3605, V4 Passive 3606 -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W0MU Mike Fatchett Sent: Sunday, June 24, 2012 12:35 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 just goes off - SOLVED Glad you found

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread W0MU Mike Fatchett
Glad you found it Lee! Many problems similar to this are caused by a bad crimp job on the Anderson connectors. I would encourage everyone to get the more expensive crimp tools with the right dies for the various amperage connectors used. Soldering is fine too but not needed if the cable is cr

Re: [Elecraft] K3 just goes off - SOLVED

2012-06-24 Thread Lee Buller
Recently, I built a new power cable...a shorter cable with automotive spade fuses. The Radio Shack Spade Fuse Holders are defective. Would not seat the fuse properly. Thus, the connection malfunctioned. I will be replacing those soon. Lee - K0WA From: