My question is which is better for transmitting an audio signal on the common 88 - 108 fm band: the common 2n3904 NPN transistor or the PN2222A NPN or are they interchangeable. I have seen a lot of circuits and some have one and some have the other.
I realized my question was not clear. For the time being I would be fine if you could tell me which of these transistors would be best for this circuit. I know the 2N3904 is used but would the other one be better or could they be interchanged?