How to Make a Variable Power Supply Unit With Fixed Outputs
https://maker.pro/custom/tutorial/how-to-make-a-variable-power-supply-unit-with-fixed-outputs
Build a power supply that provides variables voltages (both positive and negative) as well as fixed outputs.
Making Art with the iDraw pen plotter
https://maker.pro/analog/tutorial/making-art-with-the-idraw-pen-plotter
The iDraw Pen Plotter is an absolute game-changer for anyone looking to elevate their creative pursuits, whether you're an artist, designer, or hobbyist. As a proud owner of this remarkable piece of technology, I've been absolutely blown away by its performance and capabilities. Here's my comprehensive review of the iDraw Pen Plotter:
How to Make an LED Simulate an Incandescent Bulb
https://maker.pro/analog/tutorial/how-to-make-an-led-simulate-an-incandescent-bulb
Use analog circuitry to give the LED the feel of an incandescent bulb.