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So, I need to drop 12v from my moped to 8v to power this LED light.
I was thinking diodes in series but that would take a lot of diodes and they would get really hot.
Then I thought of an LM7808, but that can only handle 1A, the light will take 10-12 watts at 8v which is 1.25 to 1.5A, so that wont work unless I run 2 in parallel, but I don't know if you can do that.
Somebody said I could use a 7808 with a 2n3055 transistor, but I have no clue how to design a circuit to utilize this.
Here is a link to the light:
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/diy/, how would I go about changing the liquid in a drinking fountain? I opened one up (a wall mounted one in a dorm) and noticed that it's connected to a water source, so I guess my question is whether or not that source of water is pressurized, or if it becomes pressurized somewhere else in the system?
Would it be as simple as say, running a tube into a bottle and having the machine pump it up for me, or would I need a pressurized source of said liquid?
I'm thinking something like the hawaiian punch fountain that was seen in the movie Mr. Deeds
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After a leak required half my bathroom floor torn up, I've decided to take the time to fix some other things in there. I'm hoping there are some handymen on this board that can give some advice..
some of the caulking around the tub turned solid black in places just a few months after the last renovation. Other spots in and around the tub were perfectly fine. One area curled up and wouldn't stick to anything.
When I went to clean the fan, the bathroom got a lot brighter when I took the plastic cover off the light, and it looked burnt and orange-y. Do I need a new fixture, on it there a way to clean the plastic?
got to apply some new grout in places. anything to keep in mind, besides what it says on the box?
thanks in advance.
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/DIY I am wanting to make a fiberglass airbox for my car. I already made the mold, I have the coarse (chopped or whatever) fiberglass and then the tightly weaved dense fiberglass that I will layer.
I don't want to buy fiberlass releasing wax, but I have access to automotive grease, vasoline, oil, saran wrap, scotch tape. I've heard saran wrap/scotch tape/painters tape won't stick but I'm not sure. Grease sounds like a better way, smear it on thinly like you would do if it were the proper releasing wax.