Jameco Reliapro ACU090050A4542 AC to AC Wall Adapter Transformer 9V @ 500 mA Straight 2.1 mm Female Plug, Black
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The AC to AC power supply has no regulation because it is an AC to AC power supply. Be sure the device you want to target has an "AC" input and not a DC one. You will need a power supply with a "DC" output if it says "DC".
Since this is a C-rated site No polarity is present in the AC power supply. All AC-type computers must be AC-compatible In DC Power Supplies, the output connectors are polarized (+/-) It is a (matter).
Selected User Reviews For Jameco Reliapro ACU090050A4542 AC to AC Wall Adapter Transformer 9V @ 500 mA Straight 2.1 mm Female Plug, Black
Make sure you do your research and that you know what you are looking for. The AC in my house went to the It only needs an inline switch to turn it on and off.
Then there was me. It was not labelled as the picture when it was received. A replacement that was exactly like the original was needed. I found the connector to be too long to fit so that a portion of metal was exposed at the front, but it still.
An output voltage of 9 V rms is supposed to occur from a source of 120 V rms. According to this transformer, I received nearly 10 V RMS through my 121 V RM outlet. The battery has a capacity of five volts.
This works really well. If something goes wrong, you might want to take a look at other options.
The package received was perfect without damage, but there is a gap.
Dead on arrival!.