Found in an English publication from the 1980s, this circuit can be built with equivalent transistors such as the BC549. The signal must be applied to an external amplifier.
This traditional oscillator circuit that can be found elsewhere in this section uses general...
With NAB equalization we found this circuit in an English documentation from 1967. The transistors used...
This circuit was found in Radio Electronics magazine from June 1963. The range is small and the...