This circuit was found in the September 1997 issue of Electronics Now magazine. The circuit is for low impedance headphones powered by two batteries.
This circuit is from National Semiconductor using an LM11, which is uncommon nowadays. The circuit...
Although it uses a dual-channel FET, which is hard to find today, this circuit was released in a...
We found this circuit in the April 1979 Radio Electronics magazine. Note the filter capacitor bank...