neazoi
Advanced Member level 6

Hi, I would like to share my experience with you as far as concern the BC109C transistor and I would like your comments on this.
I have already read this thread https://www.edaboard.com/threads/289839/
This transistor has worked for me many times in different small signal circuits, like small QRP transmitters/transceivers, RF mixers and preamplifiers, low voltage radio circuits, amplified crystal radios etc.
What is weird is that most of the times, when replacing another small signal transistor (I have a few ten's of the most common types that hobbyists use) with the bc109c, the circuit works much better than with the previous transistor.
I know this is kind of a very general question, not constrained in a particular circuit, but I would like to ask if you had similar experience with it.
I have already read this thread https://www.edaboard.com/threads/289839/
This transistor has worked for me many times in different small signal circuits, like small QRP transmitters/transceivers, RF mixers and preamplifiers, low voltage radio circuits, amplified crystal radios etc.
What is weird is that most of the times, when replacing another small signal transistor (I have a few ten's of the most common types that hobbyists use) with the bc109c, the circuit works much better than with the previous transistor.
I know this is kind of a very general question, not constrained in a particular circuit, but I would like to ask if you had similar experience with it.