Power Supply Polarity

[greypower]

Forgive me if this has already been answered elsewhere, but I couldn't find any info on it. What is the polarity of the 9V power supply needed for the Slinger? Positive on the center pin?

[wildthang]

yep,

9V DC transformer/adapter.
Features

2.1mm (inside diameter) x5.5mm (outside diameter) x12.5mm Female R/A.
120VAC input; 9V DC regulated output.
125mA; 1.1W; positive center; two-prong.

Other mA would prob work too

[greypower]

OK. Thanks.