This circuit was found in a 90s Electronic Design. The circuit is for TTL technology and can function as a shield for microcontrollers.
We found this circuit in an American publication from the 1990s. Any FET can be used. The circuit...
This circuit can be used as an optical switch or photosensor to excite TTL logic. The transistor can be...
This sensitive circuit was found in a Texas Instruments optoelectronics manual. The transistors can be...