This circuit was found in Mullard's transistor application manual from 1960. More modern transistors can be used. The zener diodes used have the indicated voltages.
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...