9V Power Supply Question

[Jim Dye]

On a 9V power supply with an "M" connector, is:

Inside +
Outisde-

Or

Inside-
OUtside+

 

[John Popelish]

On a 9V power supply with an "M" connector, is:

Inside +
Outisde-

Or

Inside-
OUtside+

Yes. One of those.

 

[Jasen Betts]

On a 9V power supply with an "M" connector, is:

Inside +
Outisde-

Or

Inside-
OUtside+

Yes, one or the other, unless it's an AC supply

Usually it's marked on the device
_
outer -----(o----- inner
~
Bye.
Jasen

 

[Michael A. Terrell]

On a 9V power supply with an "M" connector, is:

Inside +
Outisde-

Or

Inside-
OUtside+

What is a "M" connector?