In the figure we have an improved version of the previous version (CB3913E) with the use of a junction FET and a network of resistors for frequency selection. The circuit is from an old American documentation. Transistors allow equivalents.
![](/images/sampledata/cir/CB3914Ej_0001.png)
In the figure we have an improved version of the previous version (CB3913E) with the use of a junction FET and a network of resistors for frequency selection. The circuit is from an old American documentation. Transistors allow equivalents.