Found in an Electronics Now from the 90s this mixer has several inputs. The integrated circuit can still be found easy and the power supply need not be symmetrical.
This circuit was found in an old American publication. The transformer is the type of output found...
This current source circuit with the CA3130 was found in a 1977 publication. The circuit provides...
The project presented consists of a flasher alternated with relay, which can be installed at the...