I have many of the following and was wondering what I could use them for.
C945P
9014-C8YC
8550
8099
C1815
MJE13005
MJE305
STPS15
you can find datasheets for most transistors by searching for the part number and the word "datasheet" in google...
these part numbers don't really ring a bell for me, but odds are you can find some use for them.
C945P should be a 2SC945 general purpose transistor. It's NPN and it's like a BC547B or more like a 2N2222.
C1815 should be a 2SC1815 another general purpose NPN transitor with ECB pinout.
They both come from Japan.
MJE13005 is a Motorola NPN transistor with pinout BCE: 400V, 8A, 75W with gain running from 10 to 60. I suppose is used in swithching power supply. I don't know how you can use it in audio applications. Any ideas?
No usable information for the MJE305: silicon NPN trans, equivalent to 2N3055 and BDX10.
Nothing for the other trans.