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.
This circuit has the transistor chosen according to the maximum current desired at the output. Unlike...
We found this configuration with CMOS-compatible output in the 1994 National Semiconductor Linear...
This very low frequency amplifier has a gain of 1,000 and was found in a 1967 documentation. The circuit is...