Using transistors at the time, this circuit was found in a 1967 Ferranti documentation. The circuit is for 150-ohm transmission lines.
The CMOS 4046 integrated circuit is seldom used, both due to the difficulty of finding it and the...
Found in a 90s Popular Electronics, this simple circuit turns on a light when the light stops to...
Found in a 1970s RCA documentation, this circuit generates signals according to the component...