Basic Double T Filter (CB24498E)

In the figure we have a basic double T filter with components that must maintain a specific range of values. The potentiometer controls the damping.

Digital to Analog Converter (CB24525E)
Using CMOS circuits and operational amplifiers of the time, this circuit was found in the...
Who is the fastest (CB4380E)
This circuit was obtained from an English magazine from 1976. The circuit operates two LEDs and...
CMOS Triggered NAND Astable 2 (CB10728E)
Although it is a common configuration today, this circuit was taken from an old publication. The...