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 simple circuit presents a voltage gain of about 1,500. The input impedance is high and the...
We found this circuit in the 1993 Motorola Linear Interface ICs. The operational is unusual today, but...
September 2016 - Mouser Electronics already has the new TPS54335-2A from Texas Instruments...