In my lackadaisical search for a source of flybacks for the compact Macs, I came across this part number. They list it as an Apple flyback transformer, but there is no other information listed (nor a datasheet) and the photo is one they use for dozens of other flybacks.

Anyone know if this part number (157-6139) indicates a usable substitute for the 157-0042 we all know and love?

I emailed the company and received zero response which would ordinarily cause me to resolve never to do business with them, but when someone might be the only remaining source for a part...