Found in Radio Electronics magazine from 1959, this high-fidelity amplifier has 15 W of power. Power supply was not provided.
This simple 60's receiver is powered by solar cells of the time. The transistor is made of...
This circuit has a duty cycle of 50%. We found it in old English documentation. The center...
The National Semiconductor LM377 integrated circuit consists of a low power audio amplifier. This...