This circuit is from a 60's documentation. The circuit uses components from the era and serves to monitor a 150V continuous power line.
T This circuit activates a relay at the end of the time delay. The indicated relay is of the low...
This is the basic configuration for using a moving bar indicator or bargraph using the LM3914...
We found this circuit in an old manual. The bypass range is 20 MHz and the power supply must be...