[Boatanchors] Horizontal Output Driver Transistor

[lee]

I've been surfing the web getting ideas for my upcoming DX-100 rebuild.  I 
noticed a neat article by Norm, WB2SYQ regarding a solid state replacement 
for the 4 watt driver pot which are hard to find these days.  I guess it 
could be used in Johnson equipment too.  It consists of a small 1 meg pot, a 
470K 2 watt resistor and a garden variety Horizontal Output Driver 
Transistor.   What is a garden variety Horizontal Output Driver Transistor? 
You would think the article would give a transistor number or two, but it 
does not.  I realize this is a TV transistor, but I don't have a clue what 
would work in such a circuit.  I am guessing it is good for high voltage and 
a fair amount of current.

Any TV technicians on here who could give me a real transistor number to be 
used in the circuit I could maybe obtain from Mouser?

Thanks,

Lee, w0vt
Houston, Texas