This tone control was obtained in a Signetics documentation of the 90s. The integrated circuit can be practically any operational amplifier. The power supply is symmetrical.
This circuit was found in an Electronics Now of the 90s. It is intended for amplifying composite...
We found this circuit in an American 80's documentation. The resistors must be of high precision...
MXT1665T-A Family from Microchip Brings the User Experience of Multi-Touch HMI into the VehicleCHANDLER,...