This has not happened to me before.... Running some FD here on CW for about an hour in an AC room PA 35C FP 31C The rig just went off. Dead. Power supply is ON. Pressed the power button....comes back on. Anyone see this before....I have not. Lee In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) Never interfere with anything that isn't bothering you. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Is the power supply voltage dropping too low(below the threshold)?
John N1JM |
In reply to this post by k0wa@swbell.net
Any chance that the adjustable current limit (if you have that) on your
power supply is set a bit too low? 73, Dale WA8SRA On 6/23/2012 10:16 PM, Lee Buller wrote: > This has not happened to me before.... > > Running some FD here on CW for about an hour in an AC room > > PA 35C FP 31C > > The rig just went off. Dead. Power supply is ON. Pressed the power > button....comes back on. > > Anyone see this before....I have not. > > Lee > > > In our day and age it seems that Common Sense is in short supply. If you don't > have any Common Sense - get some Common Sense and use it. If you can't find any > Common Sense, ask for help from somebody who has some Common Sense. Is Common > Sense divine? > > Common Sense is the image of the Creator expressing revealed truth in my mind. > - John W. (Kansas) > > Never interfere with anything that isn't bothering you. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by k0wa@swbell.net
Well, the PS is a switcher...Astron ss-30.
The voltage on the rig shows about 12.8 on Xmit with about 18.75 amps Nothing is hot. Wires. Connectors. Rig. PS. I am a little perturbed at the voltage drop on the ps. I would thing it would not drop that far, but I am not sure how accurate the meter in the K3 really is. Has not done it again. Never has it done it before either. Lee ________________________________ From: Lee Buller <[hidden email]> To: Elecraft Reflector <[hidden email]> Sent: Sat, June 23, 2012 9:21:47 PM Subject: [Elecraft] K3 just goes off This has not happened to me before.... Running some FD here on CW for about an hour in an AC room PA 35C FP 31C The rig just went off. Dead. Power supply is ON. Pressed the power button....comes back on. Anyone see this before....I have not. Lee In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) Never interfere with anything that isn't bothering you. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Hook a DMM up to the power pole connectors on the rig and do the
load/no-load test to double chack the K3 numbers. Check the load/no- load voltage at the power supply as well. On 6/24/2012 12:06 AM, Lee Buller wrote: > Well, the PS is a switcher...Astron ss-30. > > The voltage on the rig shows about 12.8 on Xmit with about 18.75 amps Nothing > is hot. Wires. Connectors. Rig. PS. I am a little perturbed at the voltage > drop on the ps. I would thing it would not drop that far, but I am not sure how > accurate the meter in the K3 really is. > > Has not done it again. Never has it done it before either. > > Lee > -- R. Kevin Stover AC0H ARRL FISTS #11993 SKCC #215 NAQCC #3441 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by k0wa@swbell.net
I have had similar problems which ended up being poor connections from the
power supply, where crimped connections, like on the power poles are not making good contact. Now I solder all DC connections from power supply, if possible. Also, these poor connections lower the power/amps making it to the rig, causing strange problems. Good luck 73 Emory WM3M -----Original Message----- From: Lee Buller Sent: Saturday, June 23, 2012 10:16 PM To: Elecraft Reflector Subject: [Elecraft] K3 just goes off This has not happened to me before.... Running some FD here on CW for about an hour in an AC room PA 35C FP 31C The rig just went off. Dead. Power supply is ON. Pressed the power button....comes back on. Anyone see this before....I have not. Lee In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) Never interfere with anything that isn't bothering you. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by k0wa@swbell.net
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: Lee Buller <[hidden email]> To: Elecraft Reflector <[hidden email]> Sent: Sat, June 23, 2012 9:21:47 PM Subject: [Elecraft] K3 just goes off This has not happened to me before.... Running some FD here on CW for about an hour in an AC room PA 35C FP 31C The rig just went off. Dead. Power supply is ON. Pressed the power button....comes back on. Anyone see this before....I have not. Lee In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) Never interfere with anything that isn't bothering you. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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 crimped properly. Mike W0MU W0MU-1 CC Cluster w0mu.net:23 or w0mu-1.dnsdynamic.com Http://www.w0mu.com On 6/24/2012 9:40 AM, Lee Buller wrote: > 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: Lee Buller <[hidden email]> > To: Elecraft Reflector <[hidden email]> > Sent: Sat, June 23, 2012 9:21:47 PM > Subject: [Elecraft] K3 just goes off > > > This has not happened to me before.... > > Running some FD here on CW for about an hour in an AC room > > PA 35C FP 31C > > The rig just went off. Dead. Power supply is ON. Pressed the power > button....comes back on. > > Anyone see this before....I have not. > > Lee > > > In our day and age it seems that Common Sense is in short supply. If you don't > have any Common Sense - get some Common Sense and use it. If you can't find any > > Common Sense, ask for help from somebody who has some Common Sense. Is Common > Sense divine? > > Common Sense is the image of the Creator expressing revealed truth in my mind. > - John W. (Kansas) > > Never interfere with anything that isn't bothering you. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
I do agree with Mike but to be safe I always solder. Murphy lives in my shack!
73, Tim Herrick, KQ8M Charter Member North Coast Contesters [hidden email] K3 Serial #5934 AR-Cluster V6 kq8m.no-ip.org User Ports: 23, 7373 with local skimmer, 7374 without local skimmer Server Ports: V6 3607, V4 Active 3605, V4 Passive 3606 -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of W0MU Mike Fatchett Sent: Sunday, June 24, 2012 12:35 PM To: [hidden email] Subject: Re: [Elecraft] K3 just goes off - SOLVED 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 crimped properly. Mike W0MU W0MU-1 CC Cluster w0mu.net:23 or w0mu-1.dnsdynamic.com Http://www.w0mu.com On 6/24/2012 9:40 AM, Lee Buller wrote: > 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: Lee Buller <[hidden email]> > To: Elecraft Reflector <[hidden email]> > Sent: Sat, June 23, 2012 9:21:47 PM > Subject: [Elecraft] K3 just goes off > > > This has not happened to me before.... > > Running some FD here on CW for about an hour in an AC room > > PA 35C FP 31C > > The rig just went off. Dead. Power supply is ON. Pressed the power > button....comes back on. > > Anyone see this before....I have not. > > Lee > > > In our day and age it seems that Common Sense is in short supply. If you don't > have any Common Sense - get some Common Sense and use it. If you can't find any > > Common Sense, ask for help from somebody who has some Common Sense. Is Common > Sense divine? > > Common Sense is the image of the Creator expressing revealed truth in my mind. > - John W. (Kansas) > > Never interfere with anything that isn't bothering you. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by w0mu
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 current items (greater than a few amps), I crimp with the proper tool AND solder (pre-tinning the wire). One is a mechanical connection, the other is electrical; either should work; together is insurance. No I don't wear a belt and suspenders (are they still available?); but try to beat Murphy at his own game every chance I get. If I EVER get my hands on him... :o) 73, Rick wa6nhc -----Original Message----- From: W0MU Mike Fatchett 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 crimped properly. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by w0mu
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, "W0MU Mike Fatchett" <[hidden email]> wrote: > 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 crimped properly. > > Mike W0MU > > W0MU-1 CC Cluster w0mu.net:23 or w0mu-1.dnsdynamic.com > Http://www.w0mu.com > > On 6/24/2012 9:40 AM, Lee Buller wrote: >> 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: Lee Buller <[hidden email]> >> To: Elecraft Reflector <[hidden email]> >> Sent: Sat, June 23, 2012 9:21:47 PM >> Subject: [Elecraft] K3 just goes off >> >> >> This has not happened to me before.... >> >> Running some FD here on CW for about an hour in an AC room >> >> PA 35C FP 31C >> >> The rig just went off. Dead. Power supply is ON. Pressed the power >> button....comes back on. >> >> Anyone see this before....I have not. >> >> Lee >> >> >> In our day and age it seems that Common Sense is in short supply. If you don't >> have any Common Sense - get some Common Sense and use it. If you can't find any >> >> Common Sense, ask for help from somebody who has some Common Sense. Is Common >> Sense divine? >> >> Common Sense is the image of the Creator expressing revealed truth in my mind. >> - John W. (Kansas) >> >> Never interfere with anything that isn't bothering you. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Chuck, KE9UW
|
In reply to this post by Rick WA6NHC
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" <[hidden email]> wrote: > 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 current items (greater than a few amps), I crimp with the proper > tool AND solder (pre-tinning the wire). One is a mechanical connection, the > other is electrical; either should work; together is insurance. > > > > No I don't wear a belt and suspenders (are they still available?); but try > to beat Murphy at his own game every chance I get. If I EVER get my hands > on him... :o) > > > > 73, > > Rick wa6nhc > > > > -----Original Message----- > From: W0MU Mike Fatchett > > > > 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 crimped properly. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Chuck, KE9UW
|
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 just talking for the sake of talking. I've had lots more solder joints fail than crimps, but I've had crimps fail too. On Sun, 24 Jun 2012, Ron D'Eau Claire wrote: > 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 flows. > > IMX working on electronic systems we chose crimping over solder because > crimping is faster than soldering. Even so, I have found that it is as easy > to do a bad crimp job as it is to do a bad soldering job. > > 73, Ron AC7AC > > -----Original Message----- > > 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 > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- Hisashi T Fujinaka - [hidden email] BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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.
Sent from my iPad On Jun 24, 2012, at 6:55 PM, "Hisashi T Fujinaka" <[hidden email]> wrote: > 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 just talking for > the sake of talking. I've had lots more solder joints fail than crimps, > but I've had crimps fail too. > > On Sun, 24 Jun 2012, Ron D'Eau Claire wrote: > >> 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 flows. >> >> IMX working on electronic systems we chose crimping over solder because >> crimping is faster than soldering. Even so, I have found that it is as easy >> to do a bad crimp job as it is to do a bad soldering job. >> >> 73, Ron AC7AC >> >> -----Original Message----- >> >> 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 >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > > -- > Hisashi T Fujinaka - [hidden email] > BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Chuck, KE9UW
|
In reply to this post by Hisashi T Fujinaka
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 each and every crimp terminal would be prohibitively expensive. Yes, there are consumer grade "universal"crimping tools and terminals, but they grip the wire over only a short distance - professional crimps will make solid contact with the wire over a larger area, and will be a gas-tight connection where corrosion cannot get in. I believe soldering is a better alternative for amateur work. Soldering does have one disadvantage and that is solder will be wicked up the stranded wire for a small distance, AND if the wire is subject to vibration at that point, the wire will eventually break right where the wicked solder ends (under the insulation where that break cannot be immediately noticed). So in high vibration environments such as avionics, soldering is a definite "no-no", but at the home station installation where the wires are seldom moved, soldering should be just as good or better than properly crimped terminals. In your mobile installations, you might want to consider either crimping or supporting the wire for about 3 inches away from the soldered terminal. 73, Don W3FPR On 6/24/2012 7:55 PM, Hisashi T Fujinaka wrote: > 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 just talking for > the sake of talking. I've had lots more solder joints fail than crimps, > but I've had crimps fail too. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by Hisashi T Fujinaka
Thanks to all that have responded to my previous questions.
The next thing I am looking at is getting a CW key. I am thinking about getting the "plug-in" key that is an option for KX3. Since the KX3 that I have ordered probably wont be in my hands until sometime around Christmas based on the other emails I see of order date to ship date, I am looking at getting a CW key for the FT817 I will be using in the interim. I am thinking about possibly getting two different keys - a straight key, possibly a Nye-Viking type and maybe something similar to the Iambic keyer paddle as my cw skills improve. While I probably wont do CW all of the time, it doesnt hurt to be more fluent in that mode than I currently am. Would appreciate any suggestions in this area that anyone here has. Thanks, Ron KA4KYI ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by Don Wilhelm-4
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 crimpers you see in the automotive department at the hardware store ought to be outlawed from the hamshack.
Sent from my iPad On Jun 24, 2012, at 7:19 PM, "Don Wilhelm" <[hidden email]> wrote: > 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 each and every crimp terminal would be prohibitively > expensive. > > Yes, there are consumer grade "universal"crimping tools and terminals, > but they grip the wire over only a short distance - professional crimps > will make solid contact with the wire over a larger area, and will be a > gas-tight connection where corrosion cannot get in. > > I believe soldering is a better alternative for amateur work. Soldering > does have one disadvantage and that is solder will be wicked up the > stranded wire for a small distance, AND if the wire is subject to > vibration at that point, the wire will eventually break right where the > wicked solder ends (under the insulation where that break cannot be > immediately noticed). So in high vibration environments such as > avionics, soldering is a definite "no-no", but at the home station > installation where the wires are seldom moved, soldering should be just > as good or better than properly crimped terminals. In your mobile > installations, you might want to consider either crimping or supporting > the wire for about 3 inches away from the soldered terminal. > > 73, > Don W3FPR > > On 6/24/2012 7:55 PM, Hisashi T Fujinaka wrote: >> 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 just talking for >> the sake of talking. I've had lots more solder joints fail than crimps, >> but I've had crimps fail too. >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Chuck, KE9UW
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In reply to this post by Ronald Nutter
Ron,
I use a Bencher BY-1 that I bought used on eBay. I don't do too much CW, so it was a great purchase for me. It's inexpensive, solidly built, and the foundation level key from one of the top names in CW paddles, if you don't want to pay for a Vibroplex. Hope this helps. 73, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua [hidden email] K3 #281, P3 #688 HRD v5.x/6.0 Test Team On 6/24/2012 8:23 PM, Ronald Nutter wrote: > Thanks to all that have responded to my previous questions. > > The next thing I am looking at is getting a CW key. I am thinking about > getting the "plug-in" key that is an option for KX3. Since the KX3 that > I have ordered probably wont be in my hands until sometime around > Christmas based on the other emails I see of order date to ship date, I > am looking at getting a CW key for the FT817 I will be using in the > interim. > > I am thinking about possibly getting two different keys - a straight > key, possibly a Nye-Viking type and maybe something similar to the > Iambic keyer paddle as my cw skills improve. While I probably wont do > CW all of the time, it doesnt hurt to be more fluent in that mode than I > currently am. > > Would appreciate any suggestions in this area that anyone here has. > > Thanks, > Ron > KA4KYI > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by Ronald Nutter
Ron,
For paddles, the Hex Key from Elecraft is always a good choice - it is about half the cost of premium paddles from N3ZN or Bengali (use Google). I recently acquired a single lever paddle from Tony N3ZN and can tell you it is a work of art and extremely smooth operating. For straight keys, check out the popular auction sites for J-38 key, or look at the N3ZN straight keys (not yet priced) at http://www.n3znkeys.com/c/7/straight-keys-coming-soon. Nostalgia fever has driven the price of the J-38 key up considerably. Back in the '50s when I was a new ham, they were available for $1 or $2 - but then you could also buy an ARC-5 transmitter or receiver for $5 - we generally stripped those for parts to use in other homebrew projects, but some remain intact and are selling for high prices if they are still in good original condition. 73, Don W3FPR On 6/24/2012 8:23 PM, Ronald Nutter wrote: > Thanks to all that have responded to my previous questions. > > The next thing I am looking at is getting a CW key. I am thinking about > getting the "plug-in" key that is an option for KX3. Since the KX3 that > I have ordered probably wont be in my hands until sometime around > Christmas based on the other emails I see of order date to ship date, I > am looking at getting a CW key for the FT817 I will be using in the > interim. > > I am thinking about possibly getting two different keys - a straight > key, possibly a Nye-Viking type and maybe something similar to the > Iambic keyer paddle as my cw skills improve. While I probably wont do > CW all of the time, it doesnt hurt to be more fluent in that mode than I > currently am. > > Would appreciate any suggestions in this area that anyone here has. > > Thanks, > Ron > KA4KYI > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
In reply to this post by ke9uw
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" <[hidden email]> wrote: > 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 flows. > > IMX working on electronic systems we chose crimping over solder because > crimping is faster than soldering. Even so, I have found that it is as easy > to do a bad crimp job as it is to do a bad soldering job. > > 73, Ron AC7AC > > -----Original Message----- > > 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 > > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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