Found in Motorola documentation from the 1970s, the circuit presented uses a component from the era that is not common today. The characteristics of the coils are given next to the diagram.
This circuit was found in Linear Circuits Applications of Texas Instruments, originally using the...
This circuit, from a 1988 publication, consists of a timer that activates a relay at the end of a...
This configuration was found in the Texas Instruments optoelectronics manual. PNP transistors...