We found this good power amplifier with the LM12 integrated circuit in the March 1989 issue of Radio Electronics magazine. The output power is around 100 W.
This circuit is suggested by Motorola, using a 4N26 type coupler and an MC1733 type operational....
The two amplifiers are practically the same, except for the gain. They have the following...
This source only uses passive components (without transistors or integrated circuits) and even so it...