Found in RCA documentation from the 90s, this bass and treble control uses an operational amplifier from the time that can still be found today.
May 2017 - Mouser Electronics is already stocked with ECS SMD crystals for frequencies in the 16...
Found in a 90s Popular Electronics, this circuit uses LDRs that can be adjusted separately. The feeding...
Found in a 90s 303 Circuits, this circuit uses the KTY10 sensor, widely used at the time. | Clique na...