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  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. - by (*steve*)
    Updated: Jul 6, 2014
  2. Do I need a heatsink? How big?
    A simple inroduction to heatsinking components - by (*steve*)
    Updated: Jul 6, 2014
  3. PCB prototype manufacturing calculator
    Find the least expensive PCP manufacturer for your hobby project - by Harald Kapp
    Updated: Jun 4, 2014
  4. How to take photos of circuit boards
    Hints and tips on how to take optimal photos of your circuit boards - by KrisBlueNZ
    Updated: May 5, 2014
  5. Adding new components to LTSPICE
    add models and subcircuits from other sources - by Harald Kapp
    Updated: May 13, 2014

View All Featured Resources

  1. Long duration timers - Notes for beginners

    Tips for beginners on long duration timers.
  2. LTSPICE Shortcuts

    Time-saving Keyboard Shortcuts for LTSpice
  3. How to take photos of circuit boards

    Hints and tips on how to take optimal photos of your circuit boards
  4. Got a question about driving LEDs?

    A list of common anwers and links to useful documentation on driving LEDs.
  1. Selecting a suitable component

    Finding a component that suits your needs at the right price
    Updated:
    Jan 5, 2019
  2. 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
  3. ako: A Kind Of (aliasing components)

    Stepping device parameters or stepping complete device models
    Updated:
    Feb 21, 2017
  4. Simulating time variable resistors

    Simulate time variable resistors in LTSPICE using a voltage source as controller
    Updated:
    Feb 8, 2017
  5. Simulating sawtooth and triangular waveforms

    simulate sawtooth and triangular waveforms in LTSPICE using a PULSE source
    Updated:
    Jun 10, 2016
  6. 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
  7. Electronics Talk - interesting interviews and shows

    Interesting videos with/on Electronics Legends
    Updated:
    Feb 17, 2016
  8. Stepper Motor Max RPM

    Details on how to calculate stepper motor max RPM.
    Updated:
    Jan 27, 2016
  9. How to Solder properly

    A series of profesional Videos from PACE
    Updated:
    Dec 23, 2015
  10. Audio Circuit Collection

    Predominantly circuit diagrams for music related equipment like guitars, but site has many others
    Updated:
    Nov 19, 2015
  11. Updated:
    Nov 3, 2015
  12. Logos for electronic component manufacturers

    Quick reference for common manufacturer logos on electronic components
    Updated:
    Dec 30, 2014
  13. Updated:
    Nov 17, 2014
  14. Component Identification

    Some useful component identification information
    Updated:
    Oct 23, 2014
  15. Compilation of useful electronics software

    This resource will provide list of software that a electronics hobbyist may find useful
    Updated:
    Oct 4, 2014
  16. Compilation of useful electronics sites

    This resource will provide list of sites that a electronics hobbyist may find useful
    Updated:
    Oct 2, 2014
  17. Digital temperature measurements

    Calibrating your finger for more accurate subjective assesments.
    Updated:
    Aug 25, 2014
  18. List of EDA packages

    Lists of EDA (schematic and PCB) packages: free/open-source, free limited versions, and commercial
    Updated:
    Aug 22, 2014
  19. 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
  20. Component suppliers

    Names and web addresses for companies that supply electronic components
    Updated:
    Jul 23, 2014
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