5 (bass mid treble) tone control circuits projects using ne5532, 4558 Ne5532 treble circuits 4558 amplifier preamp eleccircuit schema amplifiers diy schematics
Low noise pre tone control circuit using 4558 - NE55532
4558 Tone Control Circuit Diagram
Low noise pre tone control circuit using 4558 Circuit tone pre low noise control using 4558 diagram ne5532 bass treble mid amplifier board preamp audio circuits pcb layout