This circuit came out in a publication called Electronics Handbook of 1993. The circuit shows how to implement a good common telephone line protector.
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...