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From simple Ohm's Law calculations in direct current (dc) applications to complex design equations for alternating current (ac) and radio frequency (rf) circuits, the Electronics Toolkit can help anyone solve basic electronics formulas quickly and accurately. 

Based on an Excel® workbook format, each section is easy to use and is organized around traditional electronics topics such as Ohm's Law for a.c. and d.c., series/parallel circuits, capacitance, inductance, resonance, time constants, and much more.

Containing over 160 of the most often used calculations in electrical and electronics applications, the Electronics Toolkit is a ready reference tool for anyone working in the fields of electronics and radio communication.

For a complete listing of the calculations, refer to the table below. 

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Hobbyists...Technicians...Radio Amateurs...Students...Engineers! Solve over 160 basic electrical and electronics formulas quickly and easily with the Electronics Toolkit!

TABLE OF CONTENTS

DESCRIPTION

NO. of CALCULATIONS

Basic Formulas (d.c.)

Ohm's Law for d.c. circuits (voltage, current, resistance, power)

12

Basic Formulas (a.c.)

Ohm's Law for a.c. circuits (voltage, current, impedance, power, power factor)

12

Basic Series Circuits

Calculation of impedance, phase angle, and reactance for series RL, RC, LC, and RLC circuits and resistance for pure series resistive circuits.

10

Basic Parallel Circuits

Calculation of impedance, phase angle, and reactance for parallel RL, RC, LC, and RLC, series/parallel RL/RC, series/parallel RL/C, series/parallel L/RC and resistance for pure series resistive circuits.

16

Networks

Kirchhoff's Laws, Superposition, Thevenin, Norton and Millman Theorems (presents theorems and methods to solve)

N/A

Alternating Current/Voltage

Calculation of rms, peak, peak-to-peak, avg voltage/current, in addition to frequency, period, wavelength, power, apparent power, reactive power, and power factor.

19

Inductance

Calculation of series and parallel inductance, energy stored in an inductor, series and parallel inductive reactance, frequency, inductance, and inductive reactance when the frequency and inductance are known.

8

Capacitance

Calculation of series and parallel capacitance, charge and energy stored in a capacitor, series and parallel capacitive reactance, frequency, capacitance, and capacitive reactance when the frequency and capacitance are known.

9

Resonance

Calculation of capacitance, inductance, resonant frequency, capacitive reactance, inductive reactance, Q-factor, and bandwidth for series and parallel resonant circuits.

11

Coil Winding (air core)

Calculation of inductance, number of turns, spacing, and typical wire size for air core, single and multi-layer coils based on radius or diameter.  Includes calculation of inductance for straight wire.

8

Coil Winding (toroids)

Inductance, resonant frequency, no. of turns for toroid coils

3

Time Constants

Calculation of time constants, resistance, capacitance, and inductance for series RC and L/R circuits.

6

Filters

Calculation of cut-off and center frequencies for low pass, high pass, band pass (constant-k, m-derived), resonant filters.

9

Complex Math

Calculation of impedance, phase angle, resistance, and reactance with rectangular-to-polar and polar-to-rectangular conversions.

4

Basic Antennas

Calculation of dimensions for half-wave/folded dipole antennas, quarter-wave vertical antennas, 3-element yagi antennas, matching transformers and line-of-sight distances.

10

Design Data

Resistor color codes, copper wire tables, thermal characteristics of metals, resistance, and cross sectional area of conductors.

3

Magnetic Circuits

Calculation of magnetic flux density, magnetic field intensity, magnetic flux, permeability, transformer voltage ratio, transformer current ratio, transformer impedance ratio, and mutual inductance.

11

Decibels

Calculation of power, voltage, and current gain/loss.

6

Transmission Lines

 

Calculation of impedance, inductance, capacitance, and attenuation for coax and ladder lines.

8

Basic Units and Conversions

Units, symbols, and definitions for electric & magnetic variables

N/A

Features and Benefits

Each subject area in the Electronics Toolkit is organized into a separate worksheet which includes the following features/advantages/benefits:

  • Basic definitions are included for reference purposes
  • Input and output variable fields include a choice of units where appropriate
  • Actual formulas used in the calculations are displayed for ready reference.  This is a distinctive feature that sets the Electronics Toolkit apart from many of the other products on the market. Having access to the actual formula used in the calculation, the user can apply the calculation with less guesswork and greater confidence in the results.  This also makes the program a good teaching tool.
  • Where appropriate, additional diagrams and application notes are included to assist the user.
  • The Electronics Toolkit is an 'open' application model that can be expanded by the user to include customized calculations and notes.
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