"Robert L Wilson Jr." wrote in message
...

snip

It is not just fairly inexpensive things like my MFJ analyzer that have
had problems. I did the "resolder the whole board" thing on my Phase
Linear preamp many years ago also, and that was by no means low end!

Bob Wilson

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In 1970, I bought a new Chevy Impala, drove it for a couple of years,
including cross-country. One day the radio quit. One dashboard-thump
later, the radio was back.

After another YEAR, the radio quit again and no amount of thumping had any
effect. On the weekend, I pulled it and opened it. Inside, a single wire
ran from the DC plug on the back to the ON/OFF switch. The front end of
that wire was looped through a lug on the switch but it had never been
soldered. Not a trace of solder on the lug or the wire. After a minute's
work and a centimeter of solder, I had my radio back. No more problems.

How/why did it work all those years ... then abruptly quit, work again, then
quit again? Unexplained.