## Amateur Radio Operating and Related Information

- Propagation. (links to http://www.mw0llo.com/propagation.aspx)

## Some Common Electrical \ Electronic Mathematical Formulas

- Energy Stored in the Magnetic Field Associated With a Current-Carrying Inductor. (links to http://www.mw0llo.com/EnergyStoredByInductorPage.aspx)
- Energy Stored in the Electric Field Associated With a Charged Capacitor. (links to http://www.mw0llo.com/EnergyStoredByCapacitorPage.aspx)
- Rate of Current Increase in an Ideal Inductor for a Fixed Applied Voltage (links to http://www.mw0llo.com/CurrentRiseInInductor.aspx)
- Formula for Capacitive Reactance of Given Capacitor Passing a Sinusoidal Current of Given Frequency (links to http://www.mw0llo.com/capacitivereactance.aspx)
- Formula for Inductive Reactance of Given Inductor Passing a Sinusoidal Current of Given Frequency (links to http://www.mw0llo.com/inductivereactance.aspx)
- Current Rise in a Resistor-Inductor Circuit with an Applied DC Voltage (links to http://www.mw0llo.com/RLCircuit.aspx)
- Voltage Rise in a Resistor-Capacitor Circuit with an Applied DC Voltage (links to http://www.mw0llo.com/RCCircuit.aspx)

## Electrical & Electronic Concepts

- Efficient Power Transfer (links to http://www.mw0llo.com/efficient-power-transfer.aspx)

## Magnetism

- Magnetic Circuits (links to http://www.mw0llo.com/magnetic-circuits.aspx)

## Components

- Wire (links to http://www.mw0llo.com/wire.aspx)
- Transmission Lines (links to http://www.mw0llo.com/transmission-lines.aspx)
- Resistors (links to http://www.mw0llo.com/resistors.aspx)
- Capacitors (links to http://www.mw0llo.com/capacitors.aspx)
- Inductors (links to http://www.mw0llo.com/inductors.aspx)
- Semiconductor Background (links to http://www.mw0llo.com/semiconductorbackground.aspx)
- Semiconductors (links to http://www.mw0llo.com/semiconductors.aspx)
- Diodes (links to http://www.mw0llo.com/diodes.aspx)

## Oscillators

- Oscillators (links to http://www.mw0llo.com/oscillators.aspx)

## Impedance, Admittance, Conductance, Susceptance

- Impedances in Series (links to http://www.mw0llo.com/impedances-in-series.aspx)
- Impedances in Parallel (links to http://www.mw0llo.com/impedances-in-parallel.aspx)
- Worked Example of Impedances in Parallel - LC resonant circuit (links to http://www.mw0llo.com/impedances-in-parallel-worked-example-lc-parallel-resonant-circuit.aspx)
- Impedance, Admittance, Conductance and Susceptance (links to http://www.mw0llo.com/impedance-admittance-conductance-susceptance.aspx)
- Impedance To Admittance Online Conversion Tool (links to http://www.mw0llo.com/impedance-to-admittance-online-conversion-tool.aspx)

## Circuit Building Blocks

- Filters (links to http://www.mw0llo.com/filters.aspx) - All about electrical filter circuits, low-pass, high-pass, band-pass and notch filters. Normalisation of capacitor and inductor values for standard filter designs.
- The T-Type Attenuator (links to http://www.mw0llo.com/t-type-attenuator.aspx) - About the T-Type attenuator with circuit diagram and explanation, derivation of formulas, input and output impedance and attenuation in decibels, voltage and power fractions.

## Power Supplies

- Power Supplies (links to http://www.mw0llo.com/psu.aspx)
- Switch Mode Power Supplies (links to http://www.mw0llo.com/smps.aspx)

## Mathematics

- Binary Operations on Real Numbers - The Commutative, Associative and Distributive Laws (links to http://www.mw0llo.com/mathematics/binary-operations-on-real-numbers.aspx)
- Quadratic equations (links to http://www.mw0llo.com/mathematics/quadratic-equations.aspx)
- Elementary Trigonometry (links to http://www.mw0llo.com/mathematics/trigonometric-ratios-for-any-angle.aspx)
- Trigonometric Addition Formulae (links to http://www.mw0llo.com/mathematics/addition-formulae.aspx)
- Circlular Measure - The Radian (links to http://www.mw0llo.com/mathematics/circular-measure.aspx)
- Derivatives Of Trigonometric Functions (links to http://www.mw0llo.com/mathematics/derivatives-of-trigonometric-functions.aspx)
- Matrices (links to http://www.mw0llo.com/mathematics/introduction-to-matrices.aspx)

## Website Information

- Web Site Information (links to http://www.mw0llo.com/info.aspx)