# Electronic Theory

Articles relating to electronic theory, rather than specific circuit designs go in this section.

### Top Resources

1. Using a bipolar transistor to turn a load on and off
For situations when your microcontroller (or whatever) can't do it on its own.
Updated: Jul 6, 2014
2. Do I need a heatsink? How big?
A simple inroduction to heatsinking components
Updated: Jul 6, 2014
3. Eric basic electronics modules on the internet archive
Eric modules on the internet archive
Updated: Feb 18, 2021
4. Electronics tutorial books
Electronics tutorial books
Updated: Oct 10, 2020
5. Resistors, Capacitors, Zener diodes... Why the funny values?
An explanation of the E-series and why those funny values are used.
Updated: Mar 18, 2017

## View All Featured Resources

1. ### Long duration timers - Notes for beginners

Tips for beginners on long duration timers.
2. ### Got a question about driving LEDs?

A list of common anwers and links to useful documentation on driving LEDs.
1. ### Eric basic electronics modules on the internet archive

Eric modules on the internet archive
Updated:
Feb 18, 2021
2. ### Electronics tutorial books

Electronics tutorial books
Updated:
Oct 10, 2020
3. ### Resistors, Capacitors, Zener diodes... Why the funny values?

An explanation of the E-series and why those funny values are used.
Updated:
Mar 18, 2017
4. ### Power Supplies - Common Terms and Limitations

What is a power supply (source) and how can I control the voltage and current?
Updated:
Feb 23, 2016
5. ### Stepper Motor Max RPM

Details on how to calculate stepper motor max RPM.
Updated:
Jan 27, 2016
6. ### How a BJT Transistor works (base current version)

A simple (if not absolutely accurate description) of how a normal transistor operates
Updated:
Aug 21, 2014
7. ### Logic gates

Explanations about logic gates and what they can be used for
Updated:
Jul 16, 2014
8. ### Electronic power and resistance rules

Power and resistance rules you need to know (Further edits ongoing)
Updated:
Jul 10, 2014
9. ### Using a bipolar transistor to turn a load on and off

For situations when your microcontroller (or whatever) can't do it on its own.
Updated:
Jul 6, 2014
10. ### Do I need a heatsink? How big?

A simple inroduction to heatsinking components
Updated:
Jul 6, 2014
11. ### Op Amp Stability

Information and solutions to stability problems you can get with op-amps
Updated:
Jun 4, 2014
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