Transistor pinout (or transistor base diagram) information for the older Qs in TO-3, TO-5, TO-18, TO-92, TO-220, etc. packages that the electronics hobbyist might have in his junk box is not an easy find on the Internet. So here's some help:
is an enlarged copy of a little
info. sheet that came with some Qs that I bought many years
ago from one of the surplus suppliers.
to other pinout information found on the Internet:
A PDF file of transistor base diagrams
This is a download in most browsers
Pinout information arranged by TO and SOT
numbers - Quite comprehensive
A few more - Scroll down a few pages to just before the Contents listing
if you can get your hands on a Radio Shack Electronic Components Tester
- Catalog # 22-330 you will have an
excellent little test device that will find the pinout information for
transistors, FETs, diodes, SCRs and LEDs and identify whether the
device is good or bad.