This circuit is from a 1968 Texas Instruments documentation. The components are from the time and the sensor photodiode is difficult to obtain today. The circuit has a response from 10 Hz to 20 kHz.
E) This circuit was found in documentation from the 1980s. The integrated circuit used is not very...
The circuit shown in the figure makes it possible to trigger a load after times that can extend up to 4...
This circuit with operational amplifier was found in old American documentation. It can be...