Volume IV of the Forrest Mims Engineer's Mini Notebook series includes four of his best-selling mini notebooks: Formulas, Tables & Basic Circuits; Schematic Symbols, Device Packages, Design & Testing; Basic Semiconductor Circuits; and Digital Logic Circuits. Together, these 4 Mini Notebooks provide a complete, basic electronics reference guide. Included are many frequently used electronic formulas, tables, circuit symbols, and device packages. Also featured are basic resistor and capacitor circuits, plus many circuits using piezoelectric buzzers, LEDs, FETs, and ICs. Also included are some 100 digital logic circuits ranging from simple gates and oscillators to sequencers, shift registers, and data selectors. Design and testing tips are provided to help you plan and troubleshoot your circuits. Hundreds of electronics references: Formulas Tables Circuit Symbols Device Packages Design Tips Testing Tips Includes many circuits using: Diodes Transistors Power FETs Piezoelectric Buzzers Basic Logic & Digital circuits: TTL CMOS Interfacing.