This amplifier was found in a 70s documentation. The product gain x bandwidth is 350 MHz. The integrated circuit is from that time, uncommon today.
This circuit was found in an American documentation from the 1980s. The circuit combines filters of...
In the figure we have a basic double T filter with components that must maintain a specific range...
The load used in this experimental circuit is a small incandescent lamp but it can be replaced by...