This amplifier was obtained in a Harris documentation from the 90s. The circuit is high speed with a gain product x 300 MHz pass band.
The basis of this circuit is the 723 integrated circuit, not very common today. We obtained this...
In the figure we have a practical circuit for use with a magnetic transducer. The 20 M ohms...
This circuit was published in an English magazine from 1981, but it can be easily assembled today,...