Elektronika MK61
l.i.papadopol
Bringing an Elektronika MK61 Back to Life My friend Erik recently sent me a curious and interesting object: a Soviet-made “Elektronika MK61” calculator. Along with the device itself, I received…
Arduino board tester
From Trash to Treasure: Reviving ‘Broken’ Arduino Boards in a High School Lab As a high school teacher in charge of an industrial automation lab, I recently embarked on an…
Geiger Clicker with VU Meter
This project stems from my experience in searching for radioactive minerals such as pitchblende, torbernite, and autunite in the field. Deposits of these minerals can be found in Italy, particularly…