We found this circuit in a 1980s documentation. Equivalent components can be used. The circuit senses temperatures in the range of 0 to 50º C and uses a transistor as sensor.
Found in English documentation, this circuit uses a thermistor as a sensor. The trigger point is...
In the figure we have the way to implement a TTL Schmitt trigger for 60 Hz signals, obtaining...
This General Electric circuit produces pulses of light only when light stops shining on the...