September 2016
I’m retired and re-learning electronics. I am confused about the differences between MOSFET and “regular” transistors. Is there a rule of thumb as to when/where/why you would use one over the other?
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Traditionally, MOSFETS were used for small-signal amplifiers and mixers, particularly at high frequencies. High currents or voltages would easily burn them out. Today there are power MOSFETS but they aren't very fast. So the existing MOSFETS tend to fall in two families: Fast but fragile, or strong but slow. Kind of like people.
