Is this center positive or center negative?
1768043
Positive. I was using one of these about a month ago and tested it with a multimeter. The center was positive and outputting around 9.3 V
462476
It's the polarity which is reversed and don't ask me to explain that. I finally gave up and started using batteries. It works fine and the batteries last a pretty long time. Good luck.
1421278
Blue is negative, and red is . Apply blue first. Unsure about north and south
924635
The center jack is NEGATIVE while both side jacks (they seem to be connected internally) are POSITIVE.
1618218
Yes polarity matters. I don't know which is + or - however. I tested it one way, didn't work, reversed the polarity, worked.
924634
I have negative in the middle, however a 470uf 35v electrolytic measures correctly with positive in the middle also. I mostly use my meter for the badly marked ceramic caps in my collection.
1068501
by the look of the drawing on the side, 4 goes to the positive on the coil on the SSR and 3 goes to the negative to the coil of the SSR. but I would be surprised if it polarity matters on the Solid State Relay.
887676
the left hand terminal is negative. and the photo is correct showing red at the right terminal...red is positive.
442510
Hi Chris,Thank you for the question. The divot in the center is normal for this product. Please feel free to contact us at contact@rightpriceusa.com for any questions or concerns, we are always here to help. Thank you,Lea
365121
As shown in the photo, the yellow dial on the Left is the polarity selector. You can select which polarity you want.
362119
I don't have a schematic but the negative terminals measure zero ohms between them. The positive terminals show a high resistance. So I would say it is common negative. The two mounting pads appear to be isolated from the rest of the circuit.
1567056
negative or positive voltage is simply a reference to ground. reverse your power connections (leads) and you now have negative voltage. it does not have a dual output for both positive and negative voltagesgood luck
987890
The center wire should be Positive. Sorry that's the best I can tell you, it's been way too long since I installed mine.
581865
You could technically make either positive or negative. Just dont mix them up. If youre asking a question like this you might want to have your home theater system professionally installed. Personally I use the white line as the power positive red....black is clear ground.Good luck
2164845
Hi Brandon. Do you mean that the - and + are reversed? Mine is the same way but it doesn't affect anything.
2219628
Thanks, i'll check for the switch on the back tonight. i'm sure the polarity is correct, red to lead (+) and black to ground (-) right?
2120761
I have not done this, and I assume it will be in negative color. However, even freeware like Irfanview (which I love) can convert a negative to a positive be it in color or black and white. The two previous answers are correct.