This circuit was found in a Popular Electronics from the 90s. The circuit has temperature compensation. Coil and capacitors depend on the frequency at which the circuit will be used.
In the figure we have the typical configuration of a sinusoidal audio oscillator with twin-T. The...
This circuit that uses only common transistors can operate between 60 and 130 MHz, depending on...
This RCA / GE circuit from the 90s can be applied to any modern operational amplifier. The number...