Suggested by a Philips documentation from 1970, this circuit uses period components, operating at 50 Hz. The current consumed is 10 A and the input voltage is 12 V.
The 4518 can be cascaded to count to values higher than 10. The output EN of this device can be...
This oscillator uses a ceramic resonator to determine the frequency. This kind of element is found...
This small transmitter appeared in the March 1989 issue of Radio Electronics magazine. The...