Hi,
the average age of my audio equipment is some 30+ years,
the oldest being a Sony CDP-101, the most recent are a Buffalo DAC
and the Khadas Tone Board.
During those three decades since I bought the Sony and some other players
besides lubricating gear or swapping electrolytics, not much had to be done.
No failures, especially with the integrated circuits.
But I am wondering about current gear:
To my knowledge, currently a simple 78xx / 79xx
voltage regulator, an SA1695 transistor or an NE5532 opamp
(all in production since decades) might still have the same
package as when being introduced. (TO220 / DIP / TO-3)
But because of the evolution / miniaturization of the production process,
-and the smaller packages they are also made for- the density of the
components inside has risen.
So the same amount of heat origins from a smaller spot.
If my assumption is true, I am wondering about longetivety.
Would a currently produced IC last as long as ist original incarnation…?
Does anyone know anything about this or point to some Sources?
All the best,
Herbert
the average age of my audio equipment is some 30+ years,
the oldest being a Sony CDP-101, the most recent are a Buffalo DAC
and the Khadas Tone Board.
During those three decades since I bought the Sony and some other players
besides lubricating gear or swapping electrolytics, not much had to be done.
No failures, especially with the integrated circuits.
But I am wondering about current gear:
To my knowledge, currently a simple 78xx / 79xx
voltage regulator, an SA1695 transistor or an NE5532 opamp
(all in production since decades) might still have the same
package as when being introduced. (TO220 / DIP / TO-3)
But because of the evolution / miniaturization of the production process,
-and the smaller packages they are also made for- the density of the
components inside has risen.
So the same amount of heat origins from a smaller spot.
If my assumption is true, I am wondering about longetivety.
Would a currently produced IC last as long as ist original incarnation…?
Does anyone know anything about this or point to some Sources?
All the best,
Herbert
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