This circuit with 24 dB per octave attenuation was found in the November 1973 Radio Electronics magazine. The components are for 1 kHz but can be recalculated for other frequencies.
Found in a 1970 documentation, this circuit makes use of 741 operational amplifiers that are...
We found this circuit in the March 1992 Radio Electronics magazine. The circuit provides 100 Hz...
The diodes are for general use and the transistors also in this Exclusive-OR circuit. The circuit may...