The integrated circuit used in this circuit from a 1987 documentation is no longer common today. This circuit can generate a multitude of different sounds and this circuit is an example of application.
The coils of this simple mid-wave radius are wound 28 or 26 on a 12 to 30 cm long ferrite rod and the...
In the figure we have a battery charging circuit for currents up to about 5 A. In series with the...
Found in 969 documentation, this circuit generates sweep signals from 1 Hz to 100 kHz. The...