We found this circuit in a 90s Linear Technology documentation. The circuit uses components from the time and the indicator is of the analog type.
This circuit generates pulses at a frequency that can be adjusted by a potentiometer. The circuit is...
This 1.5 A circuit is from the LM117 manual. The LM350 can be used for higher current, and the...
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. Other...