Sorry if this topic has been addressed here before. Knowing that Neumann has always kept excellent records, I wonder if one of the company reps would like to tell me what transformers were used in the various production runs of U47s? I do recall working on one older one (low sn) which had an odd (to me) vertical mounting, but, every one I have seen was a BV-08. Clarify, please?
thanks,
David