transistor substitute

[9 volts]

Is there a more generic substitute for this transistor?
NTE123a  (NPN)
Absolute Maximum Ratings:
Collector–Emitter Voltage, VCEO
NTE123A 40V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Collector–Base Voltage, VCBO
NTE123A 75V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emitter–Base Voltage, VEBO
NTE123A 6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Collector Current, IC
NTE123A 800mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Device Dissipation (TA = +25°C), PD 0.4W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above +25°C 2.28mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Device Dissipation (TC = +25°C), PD
NTE123A 1.2W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Thanks it's a subsitute for a DS66

[Sir H C]

The NTE123 is the most generic substitute transistor out there.  It is concidered for everything from a 2N2222 to a million others.

[9 volts]

Where i live the brand 'nte' are quite expensive and not so freely available. If it's also substitute for 2n2222 could I use a standard 2n3904 in it's place? (I've read this is possible)

[Seljer]

Yep, they'll all work