2N2907

(0.03A,20V) NPN RF Transistor (TO-92).

Silicon NPN Transistor ( 40V, 0.5 A , 0.625 W) (TO-92)

Silicon NPN Power Darlington Transistor ( 10A ,100V , 125W ) (TO-220)

Silicon PNP POWER Transistor ( 1A ,100V , 30W ) (TO-220)