Positive or neg ground

["Daniel S. Eiland" <deiland1@elp.rr.com>]

Hi Listers,

    Trying to find out on the old clocks which one are positive and which
are negative grounds. I had two different clocks. One says "Fead Lead
Negative" and the other says "Feed Lead Positive". Can someone explain which
of these is a neg. ground and which is pos. ground?

    If I understand these correctly, Feed Lead Positive is a negative ground
instrument and the Feed Lead Negative is a positive ground instrument. Can
someone confirm this please. Thanks.

Dan Eiland