Using the 555 and 7400 this circuit was found in the September 1977 Radio Electronics magazine. The power supply must be made with a voltage of 5 V.
This regulator provides a regulated output voltage of 48 V under a current of up to 1 A from a 60...
This oscillator can generate signals from 100 kHz to more than 50 MHz depending on the crystal used...
This circuit was found in 1980s American documentation. The transducer is a piezoelectric capsule and the...