This circuit from a Popular Electronics from the 90's can generate signals from 0.03 Hz to 3 kHz depending on the value of the capacitor and resistor.
This circuit was obtained in a technical publication from the 1970s. It fires a diac and thus a...
In the figure we have the typical configuration of a Hartley oscillator. This circuit generates...
This circuit was obtained from the 2005 manual of Linear Technology LT1306. The formulas for...