This circuit is from a factory manual from the 80s. The circuit can be implemented with modern operationals. The supply must be symmetrical, and the diode is general-purpose.
This circuit can be used for signaling a panel with a common incandescent lamp. The lamp will...
This circuit, suggested by General Electric, increases the sensitivity of a common multimeter to 1 M /...
The LM105 integrated circuit consists of a voltage regulator integrated in a metallic enclosure. The...