Found in the documentation on PCs, this circuit excites LEDs whose current is determined by R3.
Found in a 90s Popular Electronics, this transistorized circuit generates pulses from 2 Hz to 50...
Found in a 1969 documentation on neon lamps, it actually takes advantage of the durability of the neon...
The sensor of this circuit is a common diode, and the measured range is from -10 to + 40º C. The...
