This circuit was found in documentation from the 1970s. However, it can be implemented with modern transistors such as 2N2222 for Q1 and BF494 for Q2. The crystal depends on the desired frequency.
This circuit, which appears from other sources in this section, allows you to control a load...
Frequencies up to 5 MHz can be poroduced by this circuit. The output is a square wave signal. The...
This operational filter configuration was obtained in a 1980s publication. The calculation is made by the...