The capacitor used in this circuit can have values between 5 and 30 uF. The circuit is of old documentation for radio amateurs. Observe the special source used in the supply.
Other operational amplifiers series, such as MC34072, MC34074, MC35071, MC35072, MC35074 d MC33071...
This transmitter emits signals in the FM range, reaching a few meters away. The modulation...
The consumption of this circuit in the standby condition is only 1 uA. The circuit must be...