The operating system used in this circuit of the 1994 Linear Applications Handbook by National Semiconductor is not common, as is the stabilizer lamp.
Some of the components used in this circuit are not very common today. The circuit is from a 1996...
This circuit was found in a 1977 American manual. The integrated circuit is from the time....
The integrated circuits used in this 1989 project are uncommon today, including the IF coil that...