This circuit that appears in several versions in this section and on this website was found in documentation from the 1980s. The transistors can be of any general purpose NPN type like the BC548.
The integrated circuit used is no longer common today. The circuit is from Motorola's 1990 Linear...
This circuit from the 90s, found in an Electronic Engineering can be used as a shield since its...
Turns Ratio Between Windings Impedance Ratios 100:1 10 000:1 99:1 9 801:1 98:1 9 604:1 97:1 9...