We found this circuit in the Texas Instruments optoelectronics manual. Field effect transistors can be BF245 and bipolar BC548. The sensor is a photodiode in the photo-generator mode.
Simple timers can be designed using inverters or any other gate that can be connected as inverter. Figure...
Found in the Encyclopedia of Electronic Circuits volume 5 from 1995, this circuit uses a...
Found in a 1980s telecommunications documentation, the circuit presented acts as a product...