This sensitive two-transistor circuit was found in the June 1965 Radio Electronics magazine. The circuit has low drift and uses an analog instrument. The input resistance is high.
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...