Hello.
What is the actual life of equipment now?
We now have cellular phones that get replaced every year or 2.
But the old landline phone can still work, even if 75 years old.
The old farmhouse is now history, replaced by a subdivision.
Telephone service was so far out that there was a telephone line extender.
This is a 2 tube affair with original tubes, built in the late 1930's or thereabouts.
The other one I came across had a mid fifties marking.
So I decided to do some research and discovered that some tube equipment can last 20 to 30 years without service.
Contrast that with some of the latest and greatest and you see that there issues with longevity.
What gives?