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Old 11-12-2011, 06:16 PM   #43
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Who wanted to see the ballast?

Here is the ballast resistor. It is located at the outlet of the heat exchanger. Air from the heat exchanger blows across it, cooling it.


Here is an interior view looking at the back cover which houses the ballast, blowers and heat exchanger.


And lastly, the insides which show the cooling air inlet to the bulb and the frameworks for the mirror, etc. Buried inside the frame is the igniter and other circuits.


I don't need to tell you just how well this thing is built! Can't wait to fire it up!!!!!!
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Old 11-12-2011, 07:42 PM   #44
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Just be careful with that thing. Those bulbs are made of quartz so you don't want to touch them with your fingers and there is like 7 or 8 atmospheres of pressure in it. It is a BOMB. I have used them in UV souces and solar simulators. I never had one of the 1000-2500W bulbs blow but I did have a small one blow one time and it was like a gun went off. I have heard stories of them blowing up and sending the lamp housing across the room. These same type bulbs are used in movie projectors.

Perry
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Old 11-12-2011, 08:22 PM   #45
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Quote:
Originally Posted by perryg114 View Post
Just be careful with that thing. Those bulbs are made of quartz so you don't want to touch them with your fingers and there is like 7 or 8 atmospheres of pressure in it. It is a BOMB. I have used them in UV souces and solar simulators. I never had one of the 1000-2500W bulbs blow but I did have a small one blow one time and it was like a gun went off. I have heard stories of them blowing up and sending the lamp housing across the room. These same type bulbs are used in movie projectors.

Perry
Oh yea - before I ever bought this, I saw a video of a guy who simply picked up one of these bulbs and it exploded - just exploded. The guy had no face shield (which I have) so he took a face full of glass. I don't know if he was hurt or not. The tech manual explains exactly how to handle the lamp but I have no need or desire at t5his time to remove that bulb. Heck, I have to see if it will even fire up or not.
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Old 11-12-2011, 11:37 PM   #46
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Amps = Watts/Volts...
so coming off the generator at 120 volts (since thats what it puts out): 1670 watts / 120 volts = 13.9166667 amps

If those generators can also do 240 volts then you'll be looking at half that many watts.

Yes, an arc light will continue to draw power until it explodes if it's able to, but that's not the issue here. You have a 1KW light, adding in the other wattage it's using you have a draw those honda generators can handle it, those generators just don't put that many amps out.. but you won't need that many amps... you'll only need 13 amps. Now off a 28 volt battery system you will use that man amps... Just saying, you have a sweet light that you can power from a suitcase generator (or batts).... it'll be sweet.
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Old 11-13-2011, 06:29 AM   #47
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The power supplies for these things are boat anchors and they weight about 100lb. Ours ran off 220V. THey were big DC power supplies about the size of a welding power supplies. Ours were made by Oriel. I would pucker when I had to change out bulbs. They are most dangerous when they are hot.

Perry
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Old 11-13-2011, 06:55 AM   #48
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I am getting a telecom switchmode rectifier that will do at least 65 amps @ 28 volts, give or take. This will be to charge the batteries and run the lamp as needed. This supply weighs maybe 20 pounds. The batteries of course will weigh more.

I am quite hopeful that this light was maintained well and that the bulb is fairly new with little hours on it if any.
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Old 11-13-2011, 09:40 AM   #49
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Yes!

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Originally Posted by doug&maggie View Post
It's quite lovely, Buttercup!

I want to see it in use.


Maggie
This ranks right up with the periscope idea
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Old 12-28-2011, 10:11 PM   #50
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Well, after searching locally and coming up empty handed, I finally ordered a plug connector online and got a "DEAL" on it - if you can call it that. $126 and free shipping to boot! Who could ask for more...

Also, I pulled out my 24 volt, 100 amp Swichmode Rectifier that Santa got me for Christmas (how did he know?!?) I'll need to do some configuration work before I can fire it up. I have a 2kva step-up transformer that I can use to power it in remote situations and in my garage, I have a 220 volt outlet to feed it for test.

I feel I am just a few weeks away from First Light!!!! And some prized Beam Shots and maybe even a visit form the local police if I am lucky!

CAN'T WAIT!!!!!!
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Old 12-28-2011, 10:44 PM   #51
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Are you planning to bounce the beam off the moon to measure the exact distance?
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Old 12-29-2011, 01:07 AM   #52
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pfff - no..that has already been done. Besides, she ain't that bright... But i will try dome distance experiments.
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Old 12-29-2011, 01:17 AM   #53
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OK, Tim...Does the Luxor know their 'Flashlight' has been relocated to the hills between Reno & Carson?...
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