This VCA was found in the July 1988 issue of Radio Electronics magazine. It uses an OTA op amp and has its gain adjusted by the voltage at the gain input.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We found...
March 2017 - This new component of Vishay has a 16-bit resolution that allows it to be used in a...
This circuit was found in the March 1992 issue of Radio Electronics magazine. The circuit has...