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.
This circuit was found in the July 1986 issue of Radio Electronics magazine. The circuit has a...
We found this electronic organ circuit in a 1987 documentation. The circuit should be powered by...
In the figure we have the basic configuration of an operational amplifier for audio signals. The...