Can I use a 12V power supply on a 9V router?

However, a lot of older modems simply used a AC transformer, and so the modem had internal rectification to convert the AC to DC. In that particular case, I have heard that using a 12V DC power supply for a 9V AC modem is perfectly fine.

Can I use 14V adapter for a 12V device?

You’ve not mentioned what the device is, but I’d say the answer to your question is: Yes you can. 14 V is not excessively high so all should be fine. More over, once you connect the device to the adapter (start drawing current), the voltage will probably drop somewhat, depending on how much current your device draws..

Can I use 15V for 18V?

Re: Can I run 15V pedal with 18V power supply? You can, but the size of that resistor is dependent on the input resistance (load) of the unit being powered.

Can I use 12V Adaptor on 8v?

No, it will cause too much current draw at 8v, when it’s requirement is 12 V +/- 10\%. So, anything between 8.8 V and 13.2 V would be OK. But , 8.0 is too low, and would cause over heating of the DC to DC converters built in to the devices that use 12V.

Can I use 12V adapter for 7.5 V?

1 Answer. You should never use a significantly higher voltage rating adaptor on any kind of electrical device.

How many amps can a 12V power adapter supply?

So your power adapter can supply 12v at up to 1.5 amps. If your router only uses 1 amp at 12v then the new power adaptor is capable of providing more than enough power at the right voltage to meet the requirements of the router. Thanks for the quick response!

What happens if you plug a 12V into a 15V outlet?

Assuming the polarity is correct, plugging in a 12V input to a device requiring 15V won’t do any damage, however if you undervolt an amplifier, you may get clipping or other distortion. I’d try Amazon for an adapter that has 15V output, possibly a universal type. 0 mrmike16

Can a 3A power adapter be used as a 12V adapter?

Yes. The 3A is the maximum current it can supply but it works fine delivering less current. For example, when this adapter is plugged but not connected to your device the current is zero but the voltage is 12V.

How many devices can I hook up with a 3 amp adapter?

Since 1.5 is less than 3 and 12 = 12 then you should be OK. Adapter because your load device has a resistance rating that draws 1.5 amps. That means in theory that 3 – 1.5 = 1.5 which means that 2 devices actually rated at 1.5 amps from a 3 amp power adapter can be hooked up.