Connecting 200 LEDs to AC (120V)?

Why?

The same reason that people put Halogen instead of old bulbs. it's cool and looks better (in my point of view)

Homer J Simps>

Don't top-post. Just buy LED bulbs. Don't build your own. Did you ask how to connect tungsten wire by yourself to 120V instead of buying incandescent bulbs?

That's not really a fair comparison. A fair comparison would be someone asking to build their own (120V) Chrismahanukwansika lights by stringing together a bunch of low voltage (e.g., 6V) bulbs...

Well, no, you wouldn't, because you can't buy vacuum in small quantities. (;-)

LED's aren't rated to go open circuit on 110 VAC. I'd use a transformer. Yes, you'll need a bridge rectifier unless you wire them back to back which means twice as many.

"Homer" schreef in bericht news: snipped-for-privacy@i42g2000cwa.googlegroups.com...

Four strings of 25 LEDs in series each with a 1k2/1W series resistor. These strings in parallel and connected to the rectifier.

petrus bitbyter

You USED to be able to, though...I remember the local drugstore had small glass vials of vacuum available for sale, right next to some electronic thingy that was supposed to be able to test them and (I guess) tell you if the vacuum inside them was still good....

Ah, those were the days...

Bob M.

I do not believe that you would be able to connect 10 Leds together and make them look good, let alone 200 of them.

So, before I am interested, I would like to see some aesthetic proof of concept.

DNA

Well at the risk of telling you how to do something that might get you electricuted if you dont know what your doing ...

You could try and string 25 leds in series, this gives 90v fwd, youl have 8 of these strings conect them in parallel pairs, then conect two of those pairs in anti parallell add a series resistor wich I estimate about 250 ohms, but might be best to start with say 1k

repeat for the other 4 strings.

conect to safety isolated 115 supply, stand well back, push switch with a long broom, ... fetch fire extinguisher, wish youd got some1 watching at a safe distance to ring for ambulance ...

Colin =^.^=

Exactly, but that is just your own perception of things. I also have a large volume of empty head and would have problems with selling it due to the packaging.

However, I am sure that you might be able to create the experience.

NOM - No Offence Meant DNA

Yes, I know about the Governers attempted homosexual adventures with what turned out to be a woman. Is it relevant to your 10% or your new request for

I can get this built next door. Ugly Bitch.

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Thank You

Buy? What, are you crazy? When I was a kid we had to make our own vacuum with homemade hand cranked vacuum pumps! Of course, the jerry rigged diffusion pumps were a lot harder to crank, to finish off our home brew CRTs!

In message , dated Wed, 13 Sep 2006, Michael A. Terrell writes

You had hand-cranked vacuum pumps? We had to get six kids into line to suck simultaneously.

colin ha escrito:

I have conected 5 strings of 34 white LEDs (5mm) to a rectifier bridge with a current regulator (LM317HV)(for each string) and it works fine...

"petrus bitbyter" schreef in bericht news:45085bbc$0$12703$ snipped-for-privacy@dreader18.news.xs4all.nl...

Oops. 200 LEDs require 8 strings of 25.

petrus bitbyter

Transformers are not rated to go open circuit on 110 VAC either.

Only six? That must have really sucked!