Hi again,
Before when I just have had just few BC547, I used to make 100MHz FM oscillator using this poor transistor which has just 100MHz as a typical transient frequency. Later I decided to I use 250MHz transistor like 2N3904, 2N4401 when I got. But seeing few signal RF transistor, I am thinking to use these RF transistor there as an 100MHz oscillator. Lets say a transistor MPSH34, which has 500MHz min fT and collector current is 50mA. It is said that it is a 'low noise OSC/Amp transistor'.
In you experience and opinion is it good to use such RF transistor as
an 100MHz oscillator than using 2N3904 general purpose? What might be the huge benefits please!
And also can I use it as a class A amplifier to amplify this oscillator's output RF? (maybe same as MOD-4 Q3) But its collector current is rated as only 50mA so I think it would be hard, wouldn't it? (assuming Vcc is 9V DC).