This circuit generates sinusoidal signals between 300 and 3000 Hz. We find a 303 Circuits from the 90's. The operational ones are types with FET. The power supply must be symmetrical.
ON Semiconductor NTMJS1D5N04C 40V Industrial MOSFET Available from Mouser Electronics, these ON...
This sophisticated power supply from the 80s uses components from the period, which makes it...
This circuit for audio applications was found in an English magazine from the 80's. The circuit...