This equalizer was found in the May 1978 issue of Radio Electronics magazine. The component values for the equalization networks are given next to the diagram.
We found this configuration of band rejector filter or band rejector with operational 741 in a...
We found this circuit in an old European documentation, but the components used are still all...
We found this transmitter for the 70 to 90 MHz band (FM in Japan) in a Japanese publication at the...