This circuit was found in a 1964 Electronic Design. The circuit makes use of transistors of the time. Current equivalent transistors may be experienced.
High stability is the main feature of the 10 V regulator circuit shown in the figure and suggested by...
This circuit, from the Texas Instruments component datasheet, allows the switching current to be...
This circuit was found in a 90s Popular Electronics. The circuit indicates if a transmitter is working,...