This simple Morse Code oscillator was found in a 1980s American documentation. The power supply should be powered with 5V and the integrated can be the 7400.
Found in a 90s Popular Electronics, this circuit aims to find the voltage of a zener diode up to...
The LP380502SD-ADJ integrated circuit consists of a low voltage drop-out (LDO) regulator with...
We find this oscillator in a 1980s documentation. The frequency depends on the crystal and the...