In use telephone indicator (CB8665E)

This circuit was found in a 90s Electronics Now. The circuit can use a TIC106 for the SCR.

Automatic Shutdown (CB13488E)
We found this circuit in a 1978 publication. Several changes can be made, depending on the desired...
TPS92692EVM LED Controller Evaluation Module
June 2017 - Mouser Electronics announced the availability of the new Texas evaluation module for...
Lamp Driver C (CB20131E)
This simple shield for microcontrollers and TTL digital circuits was found in documentation from...