Operating in class AB1, this high-fidelity amplifier was found in the 1961 RCA tube manual. The circuit has high input impedance and good gain.
Found in a 90s Elektor, this circuit is based on a Maxim integrated circuit of the time. The...
No information is given about the transformers in this circuit suggested by Motorola in a 1968...
This circuit was found in the January 1996 issue of Electronics Now magazine. The circuit is...