A long time ago I also noticed the similarities between amplifying tubes and FETs, and have since wondered why we study BJTs before studying J-FETs. To me, J-FET operating principles are much easier to understand than the base region modulation in BJTs.
I think it's basically that BJTs were commercialized before FETs, and the bulk of the analog circuits curriculum traces back to the era when BJTs dominated (1960s-1980s).
A long time ago I also noticed the similarities between amplifying tubes and FETs, and have since wondered why we study BJTs before studying J-FETs. To me, J-FET operating principles are much easier to understand than the base region modulation in BJTs.
I think it's basically that BJTs were commercialized before FETs, and the bulk of the analog circuits curriculum traces back to the era when BJTs dominated (1960s-1980s).