Found in a 1967 Ferranti documentation, this circuit uses a LDR from that time as a sensor. Transistors can be replaced with modern equivalents.
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...