We've lost the original transformer for our Christmas lights, will there be any problems with running on a differently rated transformer? Lights are LEDs and both lights and transformer are rated at 1 amp.
posted by Kiwi
on Dec 8, 2013 -
I heard this weird buzzing sound coming from my basement today, and I eventually opened up the ceiling and traced it to this transformer or something that's up in there. I tapped it with a piece of non-conductive material and it stopped buzzing. Tapped it again, it started buzzing more quietly, and then I tapped it again and it was silent. Anyone have any idea what this is, and why it's there? The house is from 1952 and doesn't have any electrical issues that I know of. Pictures:
posted by Slinga
on Oct 23, 2013 -
I'm moving to Germany in a couple of months and have a few questions about using various 110V US-purchased appliances on the local 220V power. Specifically the 50Hz/60Hz issue - how big of a deal is it? My understanding is that anything with a motor may have a shorter lifespan and run somewhat less efficiently (and of course anything that uses AC for timing will run slow), but any other issues? [more inside]
posted by photo guy
on May 13, 2013 -
I have ten 30 watt 12v halogen lights connected to a transformer that is rated for 300 watts. The transformer seems fairly old. I want to be able to dim the lights. What kind of dimmer do I need and how do I wire it up?
posted by Infernarl
on Jul 28, 2012 -
Where might I find a replacement (low-profile) doorbell transformer that is similar to this
? It is about the size of a Matchbox or Hot Wheels toy car and has FRONT, REAR and TRANS connectors. The replacement transformer I bought looks like this
, which is about the size of a tennis ball and has white, black and green wires, but no FRONT, REAR and TRANS connectors. Big chain hardware stores shrug their shoulders, lighting stores only carry the big TF I linked to, so where might someone go to find something like this, to fix an older doorbell? [more inside]
posted by Blazecock Pileon
on Jul 15, 2012 -
I'm trying to find a slim case for Asus Transfomer Prime. Slimmer the better. I really like the iPad2 case.
Silicon material like iPad case is preferred over leather.
would be ideal, but the reviews are not that good.
posted by WizKid
on Apr 19, 2012 -
I just purchased a new Nest thermostat. My old thermostat gets power from an ancient millivolt system (thermopile on top of pilot light generates 0.7VDC). This is incompatible with the Nest, since the Nest requires standard 24VAC. Nest support told me they've heard some customers have had success using 24v step-down transformer. After lots of research, I think the wiring is supposed to go something like this:
W from furnace (common, -0.7VDC ?) --> W on T-Stat
24 VAC power from transformer (+/- ?) --> C on T-Stat
R from furnace (+0.7VDC ?) --> RH on T-Stat
24VAC power from transformer (+/- ?) --> RH on T-Stat
As you can see, I'm still a bit fuzzy on the details. Questions are below the fold! [more inside]
posted by jesseendahl
on Jan 22, 2012 -
Need a step-down converter for plugging a printer sold in the US (110V power) into a 3rd-world socket (240V power). I get the voltage part but watts and amps and such are a bit beyond my electronoobicity. [more inside]
posted by allkindsoftime
on Jul 27, 2011 -
I'm setting up my "off the grid" solar lighting system in my home, and I'd like to connect the battery to some LED lights. It's a 12 volt DC battery - Do my lights have to be 12 volt also? If they're LED bulbs, they'll have a transformer inside; will that allow me to use them, or do I have to have a voltage converter or something? I've got some edison-style LED bulbs around the house for 85-265 volts.
Thanks in advance for any help. pictures and web links that can explain things simply are helpful. (An earlier, relavent post:
posted by eggrollover
on Jul 5, 2011 -
Im a big transformer fan and i was wondering if anyone makes custom transformer toys ... optimally (lol) id like ones made out of metal but platic would do even a 3d model i could transform and make it do stuff would be fun maybe sit on my desktop on my pc
and i dont mean repaints and newly made old toys i mean trans formers that i make up
posted by quseio
on Nov 17, 2010 -
Please help me fulfill my almost 4-year-old's only birthday wish: "a car that turns into a truck." [more inside]
posted by justonegirl
on Sep 16, 2010 -
I'm looking to buy a silicon steel lamination core from a transformer. I frequently give presentations that discuss the design of these transformers and I'd like to have a sample to show the audience. Where can I buy this online? [more inside]
posted by Aanidaani
on Feb 25, 2010 -
How can I identify the approximate properties of an electrical transformer? [more inside]
posted by anadem
on Feb 22, 2010 -
Bringing a US Dishwasher to a 220V-powered country, providing I have a well rated transformer will there be any issues? Bonus points for FUD-less answers :) [more inside]
posted by shimon
on Sep 21, 2009 -
Just returned from fabulous 2 week holiday in New York. I Brought back Epson Artisan 800 All-in-One Printer from Staples costing $230. Unfortunately, I cannot use it in U.K., unless I plug voltage converter/transformer products. Has anyone else bought this set over there with more success?
Any advice \ information appreciated.
Please specify me What exact voltage converter product to buy & where to buy it from USA online store. Thanks. [more inside]
posted by omaralarifi
on Jan 28, 2009 -
I am packing my entire house and moving to the UK, and I'm hoping to bring my TV, stereo, and a few smaller appliances with me. Please help me figure out my US to UK transformer and voltage requirements! [more inside]
posted by Kevin A
on Oct 18, 2008 -
What king of laptop adapter/transformer do I need for Buenos Aires? I have a U.S. Apple MacBook Pro with a THREE-pronged grounded cable. [more inside]
posted by cookie googleman
on Sep 29, 2008 -
My girlfriend has a GHD hair straightener purchased in the USA, it's labelled "120Vac 35W", I want to use it in Ireland (where the standard voltage is 220Vac). Is it safe to use this with a step-down (220V -> 110V) transformer? [more inside]
posted by nfg
on Aug 21, 2008 -
ElectronicsFilter: How do I drive a step-up transformer to get hundreds of volts out of an AA battery? They're only 1.5v. [more inside]
posted by spacewrench
on Sep 3, 2007 -
Advice on voltage transformers for using US kitchen appliances in Europe? [more inside]
posted by sdis
on May 30, 2007 -
TransformerFilter: I've just relocated to the US and have a rechargeable drill that uses a 17V DC transformer. I need to replace the transformer, since the one I have runs on 240V power (and has the UK prongs). The problem here is that I can't find a suitable replacement at the likely suspect places: hardware stores, Radio Shack...
I know that the voltage must match precisely and that the amperage must be at least as high as the noted amperage, and that the polarity must also match. So where can I go to find a good transformer? I'm in NYC, but I prefer to shop online.
posted by yellowcandy
on Nov 28, 2004 -