Found in American documentation from the 90s, this circuit can be applied to other operational ones. We found it in an EDN of the time. Next to the diagram is the response curve.
This circuit can be used with the CB4296E receiver or others described on this site. The circuit...
The circuit shown in the figure has a more efficient action, with an attenuation of 12 dB per...
This circuit for low frequencies (bass) was found in a Popular Electronics from the 90s. The...