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Old 4th February 2006, 07:56 PM   #41
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Quote:
Originally posted by dfdye
Yikes! I hope it is a little more than that. If not, at least I will have a few more interesting pictures of a flaming transformer to post!
How thick are the secondary wires?

Nevermind, send me the trafo, I'll find out a use for it.
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Old 4th February 2006, 08:01 PM   #42
dfdye is offline dfdye  United States
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Quote:
Originally posted by poobah
Find out what that transformer weighs... then compare to others with similar output voltages...
Good idea. The weight is 35+ lbs, so that would line up best (amongh those I have found) with one listed at 40 lbs and 2.5 KVA!!!

Oh my. . .

I am not quite ready to believe this, but the lowest rating I have seen for a transformer a little smaller than this size/weight is 1 KVA. That being said, I think I should have enough juice to power some op-amps.
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Old 4th February 2006, 08:07 PM   #43
Nordic is offline Nordic  South Africa
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...AND AT LEAST 3 LEDS!
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Old 4th February 2006, 08:07 PM   #44
dfdye is offline dfdye  United States
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Quote:
Originally posted by carlosfm
How thick are the secondary wires?
8 Gauge. They are pretty beefy!
Quote:
Nevermind, send me the trafo, I'll find out a use for it. [/B]
You really want to pay postage on this animal from The States?

We could work out a trade, but you pay shipping!!!!
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Old 4th February 2006, 08:09 PM   #45
dfdye is offline dfdye  United States
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Quote:
Originally posted by Nordic
...AND AT LEAST 3 LEDS!
God, I would hope so!!!
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Old 5th February 2006, 12:29 AM   #46
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I'm at an engineering school with good Comp and Electrical programs, but I haven't done much dumpster diving yet. A couple days ago I got a set of four 6x9 car speakers (20W 4ohm, nothing fancy) and some free carpet scraps. Perhaps I'll look around more in a couple of days.
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Old 5th February 2006, 05:46 PM   #47
inguz is offline inguz  United States
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My spare trafo was dumpster gold: from a powersupply to a servomotor system. The core is 3"d, 5"h, 5.5"w - looks a little bit smaller than dfdye's, but still should be enough for a chunky LM4702 someday...
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Old 6th February 2006, 03:36 PM   #48
dfdye is offline dfdye  United States
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Nice! You know what the secondaries are?

David
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Old 6th February 2006, 03:43 PM   #49
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Quote:
Originally posted by dfdye
Another for better scale. Does anybody nave a ballpark for what the amperage rating is? Unfortunately the markings are insanely ambiguous and cryptic. My guess is ~3-5 based on size (making it 500VA) but this is purely a guess. I am sure it will at least be able to power a couple of chips!
What is the secondary voltage?

As for VA, I'd guess somewhere around 2kVA.
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Old 6th February 2006, 04:27 PM   #50
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The X1-X2-X3 connections are a give away for a three phase transformer.
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