You may well have found some transistors that sound better for this circuit than others.
However, you can not jump to the conclusion that the frequency spec. is what is responsible for the difference.
Roly has shown how this is the case. There are many other aspects of transistors that could be responsible for the difference you hear.
It could also just be a coincidence. You would need to try many samples of each type of transistor to reach any kind of conclusion.
However, you can not jump to the conclusion that the frequency spec. is what is responsible for the difference.
Roly has shown how this is the case. There are many other aspects of transistors that could be responsible for the difference you hear.
It could also just be a coincidence. You would need to try many samples of each type of transistor to reach any kind of conclusion.