Question about Black & Decker 9072CTN 2.4V Cordless Screwdriver

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What is the polarity on the 2.4 power adapter for the B&D 9072 cordless Screwdriver?

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You need a 4.0 - 4.5 DC 100 mA power source with center pin positive polarity.

Posted on Dec 19, 2010

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Input voltage?


looks like it is 12 V, 1 to 2 amp.

her are some power Adapters listed on amazon. Also, look on the bottom to see what polarity it is (also by mosue over the picture of the adapter in the bottom link (to zoom in)

Amazon com Pwr Extra Long 6 5Ft Cord AC Adapter Charger for Seagate Hdd...


Amazon com Super Power Supply AC DC Adapter Charger Switching Cord Plug...

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I have lost the power cord for my 400 Amp power on board jump starter model #VEC021STC. where can I purchase one.


THIS IS A 12 VOLT POWER ADAPTER YOU MAY USE ANY 12V ADAPTER IF IT HAS THE SAME POLARITY AND SIZE PLUG WITH AT LEAST 2 AMP CURRENT RATEING HERE IS A LINK ON AMAZON
http://www.amazon.com/HQRP-Adapter-Charger-VEC021AC-VEC021STC/dp/B009DF2RFE

Dec 09, 2014 | Vehicle Parts & Accessories

1 Answer

Polarity


As long as you buy a genuine Dell AC adapter, it will be find.
Do not buy a 3rd party AC adapter.

I have bought at least a dozen Dell AC adapters on eBay. Just make sure the photo shows a genuine Dell.
http://www.ebay.co.uk/itm/Original-OEM-Dell-Inspiron-Mini-10v-Battery-Charger-Power-Supply-Cord-19V-30W-/190678344193

Apr 15, 2014 | Dell Inspiron Mini 10 Notebook

1 Answer

Yamaha psr-280 flashing display no key response or sound. Is it dead??


Your adapter should be a 12 volt DC delivering 2 amps (2000 ma). If the adapter is too small, you will have the symptoms you are seeing. Make sure the polarity is correct. DO NOT use the so called "universal adapters".

Apr 13, 2011 | HQRP AC Adapter / Power Supply for Yamaha...

1 Answer

I have a very old Maxtor external 200 GB hard drive. I can not find the power adapter for it. On the label, a part of it rads 12V 2A - does that's mean I need to look for a 12 volt, 2 amp power adapter?


Depending on the power adapter, you might be able to pickup one at Radio Shack..
If it is a single pin plug, check near the power adapter jack to see if it shows you polarity of the
center pin, which will either be "+" or "-" Take this information to your local Radio Shack along
with the voltage and amperage requirements

Feb 06, 2011 | Computers & Internet

1 Answer

Looking for power adapter for lingo noaa 740/ ne 370 weather radi


Here is a general case solution that might work even if you don't have the manufacturer's expensive adapter if you have some tech skills. Check the input plug on the radio. If you are lucky it should have a symbol next to it with a dot within a circle. The dot gives the polarity of the center connector and the circle gives the polarity of the outer connector of the plug. If you are super lucky, you will have the correct adapter already in your parts bin. Otherwise, you can buy universal 12V power adapters online from all electronics and radio shack. They include just about every kind of plug option and also some feature to select polarity.You can try the various plugs and find the one that fits perfect & then set the correct polarity. The current is not so important as long as you meet or exceed the required capacity which is often not given. Both universal adapters can provide 1000 mA which should be more than adequate. There is always a chance to screw up any electronic part; I can attest to that, but I keep 2 or 3 universal 12V power bricks on hand and have used them for many tech items.

Mar 13, 2009 | Lingo NOAA-740 AM/FM/Weather Radio

2 Answers

I lost my battery charger thinghy ......... can I buy another one? Where?


The charger needs to be 9.5 volts DC,2-1/2 amps. The polarity(plus or minus) is shown on the side of the unit. (It is negative on the outside and Positive on the inside) DO not reverse the polarity or you will damage the device.

You can buy universal changeable chargers at places such as Radio SHack, Best Buy, ABC Warehouse, and other stores.

Jan 24, 2009 | Zenith DVP615 Portable DVD Player

3 Answers

Toshiba Satellite AC Adapter?


You can use an adapter with a lower or the same voltage, but not higher voltage. Also it should have similar amperes. Also it needs the same polarity. That's the +/- indicator. This page has a positive polarity symbol:
3247476.png

There's no need to pay ridiculous amounts of money for an exact brand name adapter.

Jun 18, 2008 | Toshiba Satellite A65-S126 Notebook

4 Answers

Maxtor personal Storage 3200 Power Supply [K01PWR3200]


i own the exact same drive. i'm looking for a spare power supply, came across this website, and saw your problem. the power supply is 12 volts dc at 2 amps. the connector that gets plugged into the hard drive: center pin is power (positive) and outer "shield" is ground (negative). hope this helps.

Dec 29, 2007 | Maxtor Personal Storage 3200 (U01E200) 200...

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