Found in US documentation, this circuit changes the waveform and phase of a sine signal. The circuit is indicated for frequencies between 0.1 and 10 Hz. The power source must be symmetrical.
This complementary circuit increases the output power of an operational amplifier. Outputs with...
A Popular Electronics from the 90's suggests this circuit that is based on a low voltage...
This circuit was found in Popular Electronics. Its purpose is to warn the visually impaired when a glass...