This transmitter emits a modulated signal at a frequency given by the first transistor in the phase shift oscillator. The circuit is from an Australian publication from 1991.
This step of good gain was obtained in an American publication of the 1980s. The circuit can be...
This two-transistor circuit was found in the January 1994 issue of Electronics Now magazine....
We found this circuit in an Australian documentation from 1991. The circuit is suitable for SMD...