This interesting circuit converts BCD signals into a voltage that can be used in an analog application. The circuit was found in the July 1991 issue of Radio Electronics magazine.
We found this circuit in a 1994 publication. It makes use of a divider for 16 384 CMOS type 4060. By...
This circuit was found in a Popular Electronics documentation from the 90s. It is possible to switch...
This 1968´s amplifier uses a JFET at the input to increase the impedance. Voltage gain is high,...