So far, my stocks are:
Note: Ft (transition frequency) is often misleading:
- For the KSP10 it's given as the "Current Gain Bandwidth Product", the part is tested up to 100MHz only (with some plots up to 1GHz).
- The BFG425 is given as a "25GHz" part but the datasheet gives data tested up to 3GHz.
Why a PNP in the middle of the NPN ? Because of Complementary ECL : it must be possible to "pack" some gates together to form a circuit with alternating polarities, save some time and gates, and power too. For example the BFS480 could be paired with the MMBTH81 (though the speed disparity might not be a great choice)
I stumbled upon a stock of 2N2369, they might as well be included in this inventory "for scientific purposes".
Note: some BC549C are already gone to contribute to #The Cardboard Computer :-)