We found this circuit in a magazine 73 from the 90's. It is a circuit indicated for radio-amateur transmitters with the frequencies determined by the sets of coils.
This 4.5 MHz amplifier is suitable for analog TV applications. We found it in a 1967 Philips...
This circuit from an old 1978 publication uses germanium transistors but can be implemented with...
In the figure we show how to add a 100k ohms potentiometer to implement an oscillator controlled by this...