This 80's circuit can be implemented with modern equivalent FETs with lower on resistance. The attenuation is 80 dB at 100MHz.
This Wien bridge circuit, using a 741 operational amplifier, was suggested by Texas Instruments in its 1996...
This circuit was obtained in Motorola documentation from 1969. The components are from that time. In...
This interesting circuit was obtained from a Poptronics of February 2001. The American magazine no...