This 2-quadrant modulator circuit was found in the May 1988 issue of Radio Electronics magazine. The CA3080 is an OTA operational amplifier.
The circuit shown was obtained in American documentation from 1968. MOSFETs can be replaced by...
We found this circuit on a Radio Electronics. Similar configurations can be found in this section. The...
This simple two-transistor FM transmitter was found in the November 1991 issue of Radio...