That happened when I tried to plug in the replacement. Slipped left of the socket in my RigRunner and had to retrieve it with tape. The original was correctly installed.
> On Jan 9, 2014, at 9:46 PM, Richard Fjeld <[email protected]> wrote: > > > I just wanted to give you a heads-up when automotive fuses are involved. We > had a situation where someone plugged in a fuse but the blades on the fuse > slid between the insulation and the terminals. That made a resistance > connection which got very hot in our case. It would surely cause a voltage > drop if not an intermittent open. It's easy to do. > > Dick, n0ce > > > > > Date: Thu, 9 Jan 2014 18:13:44 -0800 > > From: [email protected] > > To: [email protected] > > Subject: [Elecraft] Additional experience on KPA/KAT/K3 interoperation > > issues > > > > I use a SteppIR, DB42 with 60/80 dipole so I expect my case to be different > > than many others. Regardless, I have been exchanging emails with Elecraft > > support and thought these two findings might help someone else. > > > > > > Stumbled on something today that may be at least a partial cause. For a > > long > > time I had what I assumed was a problem with the power plug to the > > KAT500. I would occasionally hit the power button and got no power. I > > would pull and reinsert the plug or wiggle it and all would be fine for > > days more before it happened again. > > > > This morning I had the KAT500 powered and then in the afternoon it would > > not power on. I went > > through the routine as before but not dice. I measure 11V at the plug > > and it should have been ~13.8. > > Would under-voltage be a cause of some of these symptoms? Not sure but it's > > fishy. > > > > > > I found the fuse on my Rig Runner 12V distribution panel had "almost > > blown". They use automotive fuses.I crawled under the desk and found the 5A > > fuse position was lit which > > means the fuse is blown. I pulled the fuse and it looks to be still > > connected with a sliver of metal laying diagonally inside the fuse. > > Apparently it was defective all along and we not supply full power for > > some time. Replaced the fuse and all is g > > ood. > > > > I have no way of knowing whether the fuse was deffective or it actually > > failed in service from over-amperage. Hard imagine the KAT would kill a 5 > > amp fuse with no other symptoms. > > I will find a 1 or 2 amp > > replacement tomorrow as I now realize it should only draw 1 amp max. > > > > Yesterday, before the fuse discovery, I placed a ferrite on the SteppIR > > control cable just at the cable entrance thinking it might be importing RF > > from the top of the tower. That seemed to have stopped the issue of higher > > than normal SWR and retuning and KPA500 "REFL HI" faults. Still early > > though - we'll see! > > > > > > I will do a good review of the SteppIR next week I hope. The weatherman > > is saying we should be sunny and 60-70F. Perfect antenna weather. > > > > Hope this helps someone or spurs some creative troubleshooting. > > > > > > God Bless & 73! > > Jack - WE5ST > > > > God Bless & 73! > > Jack - WE5ST > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[email protected] > > > > 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
