This 80's circuit can be implemented with modern equivalent FETs with lower on resistance. The attenuation is 80 dB at 100MHz.
Found in an Electronic Design from the 80s, this circuit generates a 500 Hz signal and can be used...
This circuit, which can generate voltages up to 25 V, was found in the December 1992 issue of...
Found in a 1980s publication for amateur radio, this circuit employs an MC1596G which is a...