Anybody got Drake X-former color codes?

[Sweetfinger]

I've got what was sold to me years ago as an op Xformer from a Marshall Artist with the solid state pre-amp and tube power section. It is a Drake, 783-303/7 and has primary colors:brown, red, and white. Brown seems to be the CT. the secondary has yellow, green and orange. Thanks in advance for any info!

[loverocker]

That looks like Marshall's scheme for the 50Wer:

Primary: Red - Brown (CT) - White
Secondary: Yellow (4-ohm); Green (8-ohm), Orange (Common)

A simple DC resistance test of both sides should confirm at least the order of the taps.