This circuit is from the 1990 Motorola Linear Databook, which can be developed with more modern equivalent operating systems. The 1 uF capacitor should be of good quality polyester with small leaks
Indicated by Texas Instruments, this 1968 circuit measures the duration of a light pulse captured...
This flip-flop using two bipolar transistor was found in a publication of the year 1968. The...
This circuit has a logarithmic response as a function of the light falling on the sensor. The...