CONTENTS:
SECTION 1--BASIC THEORY OF THE FET
1.1 FET Types. 1.2 JFET: Structure and Operation. 1.3 JFET/Bipolar/Tube-Circuit Comparison. 1.4 MOSFET: Structure and Operation. 1.5 MOSFET in Typical Circuits. 1.6 FET Ratings. 1. 7 FET Packaging and Application.
SECTION 2--GETTING ACQUAINTED WITH THE FET
2.1 Hints and Precautions. 2.2 Checking Drain Characteristic. 2.3 Checking Gate/Source Pinchoff Voltage. 2.4 Checking Drain Cutoff Current. 2.5 Checking Drain Current at Zero Gate Voltage. 2.6 Checking Transconductance. 2.7 Static Test of Transconductance. 2.8 Checking Voltage Gain. 2.9 Additional Tests of the Amplifier. 2.10 Checking Oscillator Action. 2.11 FET Condition Checking.
SECTION 3--ELEMENTARY FET-CIRCUIT DESIGN CONSIDERATIONS
3.1 DC Bias and Circuit Resistors. 3.2 Common-Source Amplifier ( Bypassed Rs· 3.3 Common-Source Amplifier (Un-bypassed R_s ). 3.4 Source Follower. 3.5 Bootstrap Circuit. 3.6 FET/Bipolar Cascade. 3.7 FET Capacitance.
SECTION 4--TYPICAL APPLICATIONS
4.1 Basic AF Amplifiers. 4.2 Basic RF and I-F Amplifiers. 4.3 Basic Oscillators. 4.4 Combination Oscillators. 4.5 Mixer/Converter. 4.6 AF Amplifier With AGC. 4.7 Chopper. 4.8 Electronic DC Voltmeters. 4.9 Electronic AF Voltmeter. 4.10 Interval Timer. 4.11 Flip-Flop. 4.12 Capacitance Relay.
Preface:
Although the field-effect transistor (FET), as its name clearly indicates, is a member of the fast-growing family of transistors, it is so distinctive in a number of ways that it deserves to be considered a special semiconductor device.
Indeed, because of its uniqueness, the FET is regarded by some technologists as a "transistor-like" device, rather than as a transistor per se.
The electrical characteristics of the FET suit it to many applications formerly pre-empted by the vacuum tube, some times even to the partial exclusion of the conventional (bi-polar) transistor. The FET brings to such applications tube like operation plus the well-known advantages of the bipolar transistor: small size, mechanical ruggedness, cool operation, high efficiency, and modest operating-power requirements.
In this guide, I have tried to describe the FET in simple language. The presentation is offered to technicians and others who want to know how FET's work and how to use them.
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