Electromagnetics: How to Make a Powerful DYI Coil Gun
https://maker.pro/custom/projects/make-coil-gun-without-camera
Learn how to make an electromagnetic projectile launcher without a camera.
How to Make a Homemade Coil Gun From a Flash Camera
https://maker.pro/pcb/projects/make-homemade-coil-gun-flash-camera
Use a standard disposable flash camera to make this coil gun that launches projectiles using a magnetic field.
How to Build a Digital Coil-less (100KHz Step Size) FM Transmitter
https://maker.pro/arduino/projects/how-to-build-a-digital-coil-less-100khz-step-size-fm-transmitter
This project shows you how to build an FM transmitter based on the VMR6512 module.
DIY simple Spark Gap Tesla Coil
https://maker.pro/analog/projects/diy-simple-spark-gap-tesla-coil
Simplest type of Tesla coil that produces high-voltage, low-current, and high-frequency alternating-current electricity.
Single Mosfet Mini SSTC Tesla coil with 10 + cm Spark
https://maker.pro/arduino/projects/single-mosfet-mini-sstc-tesla-coil-with-10-cm-spark
Simple to build Mini Tesla coil with relatively low consumption, and surprisingly good results.
DIY Induction Heater with Ferrite Core Coil
https://maker.pro/analog/projects/diy-induction-heater-with-frrite-core-coil
An electric conductor such as iron container placed in the variable magnetic flux is heated rapidly by induced eddy current.
Impulse III Metal Detector short Review
https://maker.pro/arduino/projects/impulse-iii-metal-detector-short-review
A miniature inexpensive module that by adding a battery and a coil you can turn it into a Metal Detector with excellent features.
Universal Arduino Staccato controller for SSTC and VTCC Tesla Coils
https://maker.pro/arduino/projects/universal-arduino-staccato-controller-for-sstc-and-vtcc-tesla-coils
Staccato Controller (interrupter) was developed in the attempt to create longer sparks from Tesla Coil while at the same time reducing the input power.
Brushed DC Motor Programmable Speed Regulator
https://maker.pro/custom/projects/brushed-dc-motor-programmable-speed-regulator
This article explains how to design, build a low noise high performance low cost brushed DC motor programable speed regulator. The regulator is immune to the temperature, voltage, and motor load variation. Also, this circuit does not care about the motor coil resistance which allows using different motors in one application without any adjustments.