Identify flyback transistor in Applecolor monitor?

[neufeld@caliban.physics.utoronto.ca (Christopher Neufeld)]

   I'm wondering if anybody can help me to identify the smoked flyback
transistor in my Applecolor monitor. The part bears no manufacturer's
mark, just two lines of text:

D1650
   7A

   The casing is 1.5 by 2.5 centimetres, with a screw hole for mounting
to a heat sink. The legs are B C E from left to right. The transistor is
part Q502 on the PCB of the Applecolor RGB monitor, manufactured in 1987.
This is the only power transistor in the HV section, the only one which
is on a heat sink.
   Please, if somebody knows the details I need to buy a replacement
component, let me know.

-- 
 Christopher Neufeld - Not a graduate student   neufeld@physics.utoronto.ca
 Home page:  http://caliban.physics.utoronto.ca/neufeld/Intro.html
 "Don't edit reality for the sake of simplicity"