Suggested for the control of photographic enlargers, this 1967 General Electric circuit uses still common components. The circuit directly controls a lamp for exposing negatives.
Although it is a common configuration today, this circuit was taken from an old publication. The...
The CMOS 4046 integrated circuit is not very common today, consisting of a very efficient PLL for...
This 16-bit circuit was found in a 2005 Linear Technology application manual. The circuit uses...