Found in 1980s Electronics Design, this circuit covers 4 decades of frequencies with a unique control. A multi-turn trimpot is used for fine adjustment. The frequency range depends on C1.
This circuit was obtained in a technical publication from the 1970s. It fires a diac and thus a...
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...
This simple measuring bridge allows the capacitance m of some pF to microfarads to be measured...