This simple audio generator with the 741 was found in a 90sTexas Instruments. The circuit generates sinusoidal signals from 15 Hz to 150 kHz in 4 bands, as shown in the diagram.
Found in an Elektor from the 90s, this TTL circuit can be used as a shield without any bouncing...
When more current from a digital output is needed than a single output could source or drain, a...
We found this circuit in the April 1992 issue of Radio Electronics magazine. The circuit uses an...