2N3055
NPN power transistor in TO-3; the metal case is the Collector.
2N3906
PNP general-purpose transistor (TO-92, EBC).
2N4403
PNP general-purpose transistor (TO-92, EBC).
2N5401
High-voltage PNP transistor (TO-92, EBC).
2N5551
High-voltage NPN transistor (TO-92, EBC).
2SA1015
Toshiba PNP audio transistor (TO-92, ECB).
2SC1815
Toshiba NPN audio transistor (TO-92, ECB).
A1015
2SA1015 PNP audio transistor (TO-92, ECB).
BC548
NPN general-purpose transistor (TO-92, CBE).
BC549
Low-noise NPN transistor (TO-92, CBE).
BC557
PNP general-purpose transistor (TO-92, CBE).
BC558
PNP general-purpose transistor (TO-92, CBE).
BD135
NPN medium-power transistor (TO-126, ECB).
BD136
PNP medium-power transistor (TO-126, ECB).
BD139
NPN medium-power transistor (TO-126, ECB).
BD140
PNP medium-power transistor (TO-126, ECB).
C1815
2SC1815 NPN audio transistor (TO-92, ECB).
PN2222
PN2222A NPN switching transistor (TO-92, EBC).
S8050
NPN general-purpose transistor (TO-92, EBC).
S8550
PNP general-purpose transistor (TO-92, EBC).