Low cost field effect transistor measurements and applications
Abstract
The field effect transistor (FET) has emerged as an important
active device. Low cost FETs (about one dollar) are now available
which should substantially enlarge the FET market. Measurements on
and applications of various low cost FETs are discussed pointing out
advantages and disadvantages of particular devices and circuits. Basic FET operation and terminology is discussed including the
specification sheet, DC biasing, small signal representation^ and
measurements of device parameters. Mixer, tuned amplifier, oscillator,
and detector circuits were constructed and tested. Low noise characteristics
are examined and a brief treatment of other applications is
given.
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