This modulator circuit for low intensity signals is from old documentation. The integrated circuit used is uncommon today. The circuit operates with signals up to 2MHz.
The circuit shown in the figure is similar to the previous one (CB16096E), except that two...
The range of this transceiver found in an old national publication is of the order of 1 km. The...
This circuit was obtained in an American publication from 1977. The circuit operates in the audio...