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.
Texas Instruments SN74HCS32 Q1 2-input OR gate This Texas Instruments integrated circuit has 4...
This circuit was found in an old documentation and can be powered by a solar panel. The touch...
July 2017 - Texas Instruments' new bidirectional current controllers LM5170-Q1 for power...