This circuit generates rectangular signals from 2 Hz to 20 kHz using an operational amplifier. The circuit is from 1984 Radio Electronics. The power supply must be symmetrical.
The circuit shown bellow is na áudio amplifier using Darlington transistor in a complementary...
Indicated for automotive use, this circuit was found in a Popular Electronics from the 90s. The...
This TTL circuit was found in an American documentation from the 80s. The components are common in the...