A while back I came across a post on the 'web, where it was claimed that Rupert Neve ordered a specific thickness of rust on the cores for his "pumpkin" transformers used in the Neve 9098-series consoles.
Can anyone elaborate on the reasoning behind this? It strikes me as a fascinating concept, and knowing what an academic science transformer design is, it wouldn't surprise me to find out that this was the case.
Allegedly, rust on the core affects hysterisis curves in a negative manner, have I interpreted that sentiment correctly?
edit: According to this
Link, rust insulates the laminations from one another, so that would tend to suggest the Rupert anecdote is not a marketing myth.
Anyone?
Cheers,
Justin