Korg transistor selection color code ?

[Haible Juergen]

Does anybody know the color code which Korg used for their 
selected transistors?

I am pretty sure they selected their 2 SK 30's for threshold voltage,
their 2 SC 945's for hfe (and maybe for noise also?),
and even things like the LM13600's show dots of different colours.

Is there some "Korg insider" on one of the lists, who can tell us more
about
these color codes ??

Thanks in advance for any info,

JH.