Category Archives: Electronics

Homemade Capacitors

Posted on 2019-01-26 by M. Eric Carr

Making a working homemade capacitor with mica, aluminum foil, and a 3D printer. Continue reading →

Posted in 3D Printing, Analog, Components, Electronics, HOW-TO, Mad Science, Science, Uncategorized | Tagged , , | Leave a comment

Artifact-Free Metrology!

Posted on 2018-11-16 by M. Eric Carr

Today’s CGPM vote means that as of next May 20, all SI units will be defined in terms of natural constants, democratizing SI references. Progress! Continue reading →

Posted in Current Events, Digital Citizenship, Electronics, Fundamentals, Mechanical, Science | Leave a comment

JLCPCB

Posted on 2018-09-29 by M. Eric Carr

Inexpensive-but-solid custom circuit boards from Shenzhen in a week or two, for $2.00 apiece. Yes, really. Continue reading →

Posted in Electronics, Resources | Tagged , , , , , | Leave a comment

Mystery Resistance

Posted on 2018-07-13 by M. Eric Carr

In which I learn several things and unwittingly become a voltage divider. Continue reading →

Posted in 3D Printing, Design, Digital, Drexel, EET201, Electronics, Fundamentals, PIC Microcontrollers | Leave a comment