In simulation, firstly I choose BC547 that is an error for plotting. When I change eSim_NPN that is ok. Why?
The npn transistor used in esim_libraries is of specification Q2N2222 model.
For astable multivibrator, we are using bc547 transistor model.
You can find the details about lib files in eSim-1.1.2>>src>>devicemodellibrary>>transistor
Thank you for your answering.