This circuit was obtained from an 80's EDN. The components used are still common. The circuit can be used as a shield and the frequency is approximately 775 Hz.
This Japanese commercial transistor radio circuit was found in a 1967 documentation. The...
The circuit shown in the figure is characterized by stability and the use of a common component. This...
January 2017 - Texas Instruments' new TPS7A19 Low Voltage Dropout (LDO) linear regulators are now...