This amplifier with fixed AC bias was found in a 1947 documentation. The circuit uses two transformers in the power supply and two full-wave rectifier tubes.
The figure shows an application of the LM377 in a small inverting stereo amplifier with output...
This circuit was found in a 1967 General Electric documentation. The circuit generates signals...
In the figure we have another application for the LT3518 integrated circuit from Linear Technology...