This circuit is from a manual from the 80's and the operational one used, uncommon nowadays, can be replaced by a modern equivalent. The power supply must be symmetrical.
This circuit checks the infrared emission of a common remote control. We found it in the March 1993...
We find this circuit in a 1976 NASA handbook. The circuit can be designed based on current logical...
August 2017 - Texas Instruments is making available through Mouser Electronics the new integrated...