A collection of component references and charts to help amateur radio operators and builders access information they may need.
Calculator for Everything – https://www.wolframalpha.com/examples/
- Parallel Resistors Example – https://www.wolframalpha.com/input/?i=parallel+resistors&wal=header
Capacitors
- Capacitor Values and Colors – http://www.elecraft.com/Apps/caps.htm
- Capacitor Values Wall Chart – https://www.freetronics.com.au/products/capacitor-code-wall-chart#.Wl_uf6inF3g
- Capacitor uF – nF – pF Conversion Chart – http://www.justradios.com/uFnFpF.html
- Capacitor Types and Usage – https://en.wikipedia.org/wiki/Capacitor_types
Connectors
- Phone Connector (audio) – https://en.wikipedia.org/wiki/Phone_connector_(audio)
- Popular Microphone Plug and Socket Pinouts – http://www.qsl.net/g4wpw/date.html
Inductors
- Inductor Color Code Calculator – http://www.instructables.com/id/Inductor-Color-Code-Guide/
- Inductor Color Code Calculator – https://www.vishay.com/inductors/color-code-calculator/
- Homebrew Your Own Inductors! – ARRL – http://www.arrl.org/files/file/Technology/tis/info/pdf/9708033.pdf
Ferrite and Toroids
- Ferrite Supression Beads – http://www.vkham.com/Info/ferro/tut_9a.html
- Using Ferrites for Interference Suppression – http://www.elmac.co.uk/ferrite.pdf
- Toroid Sizing – http://www.vkham.com/Info/ferro/tut_3.html
- Specs and Turns-Length Calculator for RF Toroids – http://toroids.info/T50-6.php
- Toroid Inductance Per Turn Calculator – https://www.easycalculation.com/engineering/electrical/toroid-inductance-calculator.php
Resistors
- Resistor Color Code Calculator – https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-resistor-color-code-4-band
- Parallel Resistance Calculator – https://www.allaboutcircuits.com/tools/parallel-resistance-calculator/