This adjustable frequency circuit was found in December 1986, Radio Electronics magazine. The base frequency is given by C1 and the power supply must be 5 V.
The components of this circuit are still common today. The circuit is from a 1967 publication by...
The circuit shown enables dynamic diode testing with an oscilloscope. We found this configuration in a...
This is a traditional configuration of a transistor amplifier with complementary transistors that can be...