Well, here’s a possibility . . .
Some years ago I was commuting between Boston and Denver, back and forth every couple of weeks. While in my temporary digs in Boston I spilled salt onto the keyboard of my laptop computer. Actually, I spilled a Magarita, which until then had been in a heavily-salted glass. For some time after I could hear the crunching of salt crystals when I typed, and the whole thing went berserk with odd sequences of letters and symbols. I took it home to Denver and it worked fine. Next trip to Boston, same problem. Back home to Denver, no problem. Finally junked it and bought a new one. Best I could come up with was the relative humidity difference between Boston and Denver. It’s typically in the seventies in Boston, but between 30 and 40 percent in Denver. I’ll let the engineers (or the chemists) tell me if that could have explained it.
As an aside, when the spill happened I called the IT guy at my Denver office and said that I had a problem. He asked if I had any more Tequila and Lime Juice and Triple Sec. I said I did. Well, he said, then you don’t have a problem, just mix another drink. IT was more humane in those days.
Ted, KN1CBR
-- >
> On 6/29/2017 8:49 AM, Nr4c wrote:
> > My K3 (s/n 453x) has been used for FD and other outdoor events plus use
> at home (till I rec'd one of the first K3Ss). On at least 2 events in past
> year it has exhibited little output power. Batteries were checked, cables
> checked and replaced, to no avail. Display did not show SWR when TUNE
> button pressed (only "--"). Another K3 was swapped in and everything was
> fine.
> > I took radio home and it worked perfectly.
> >
> > This year at FD, it quit at around midnight. Even tried <12 W to verify
> LPA. Result little or almost no power. Checked LPA screws but they were
> tight. Voltage on radio was just above 12v on TX. Took it home and it
> shows no sign of low power. It has worked well all week.
> >
> > Reloaded FW from Elecraft and reloaded last CONFIG file (May 2017 just
> before first event of year and did TX cal at this time).
> >
> > Now hooked to dummy load and running stress test with FD CW msg on
> repeat.
> >
> > Anyone have ideas?
> >
> > Sent from my iPhone
> > ...nr4c. bill
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