Found in a 1968 Novel Electronics Circuit, this circuit compares two light intensities using common LDRs as sensors. Transistors can be modern PNP equivalents.
The circuit is from an 80's publication, but the components are current, only special type diodes...
The frequency of this oscillator depends on the coil and the 10 nF capacitor. The circuit is from...
This circuit aims to use the output of a microcontroller with low current to drive a load of a...