In article , Robert Haar wrote:
On 1/9/10 11:03 AM, "Charlie Self" wrote:

IIRC, BX cable used to not have a neutral. Two wires.

Do you mean no ground wire? I know that BX cable was used for the ground
connection in the past,

Still is, per 2008 NEC Article 250.118 (8).

but was it really used in the "return" current path
of the neutral?

Not by any competent electrician. That was *never* approved by Code AFAIK.