This 80's circuit can be implemented with modern equivalent FETs with lower on resistance. The attenuation is 80 dB at 100MHz.
This circuit is from an ancient American documentation. The transistors are of the time and the...
This circuit was found in a Philips documentation from 1967. The circuit uses components from the...
This circuit was found in an EDN from the 90s. For the components indicated, the frequency is 10 kHz....