We found this mixer in an American documentation. Operational amplifier supports equivalent and changed number of inputs. Power can be between 6 and 12 V.
This circuit came out at a Wireless World in January 2000. The circuit can be easily assembled as it uses...
This circuit was obtained in a Popular Electronics magazine in March 1991. The circuit generates...
This circuit makes use of an operational amplifier from the 80's. The circuit can be implemented with...