This circuit uses the LM2931 which is not a common component today. What it does is to activate a lamp causing it to blink at a frequency determined by the capacitor.
.
This driver for coaxial cables was found in American documentation from the 1980s. The maximum...
We found this circuit in a 1969 Mullard documentation. The same configuration appears elsewhere in...
May 6, 2015 - Mouser Electronics, Inc., the global authorized distributor with the newest...