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Author
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Topic: Orcon Boost Unit for Osram Bulb
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Tony Bandiera Jr
Film God
![](/ubbmembers/2365e.jpg)
Posts: 3067
From: Moreland Idaho
Registered: Apr 2004
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posted 06-06-2011 10:41 PM
The issues in this thread reinforce why I hate ORC's crappy equipment so much. Their designs sucked and they cobbled together things not intended for the use. (Arc welders and their transformers were designed for short duty cycles, like around 20%).
With my griping aside, Tim, to answer your hookup questions, the two small wire should come from the contactor's coil and the large leads hook up as you mentioned, red + white - to the output of the rectifier.
To verify the contactor voltage, connect a voltmeter to the leads on the contactor coil, with the range set to 300v or higher AC and turn the rectifier on. You'll most likely get 120v, but with ORC who knows. They never played by the rules.
Oh yeah, and since this boost box was made in 1973, don't be surprised if it either doesn't work at all or if the caps inside explode. Electrolytic caps that sit around unused dry out and can fail when energized. (I am presuming that there are electrolytic caps in the grey can in the boost box...)
Edited to add:
If the transformer label you posted above mine is in the boost box, then both my hookup suggestion, voltage measurements and comment about e-caps changes to the following:
The small leads should probably connect to any two legs on the LOAD side of the contactor feeding the rectifer.
There appear to be no e-caps if they aren't in the grey box, so the only concern would be misconnection burning something up. You probably don't want to put the "fire" in rectifier, so a good bet on this one would be to get a tech in your area to hook this thing up. It becomes a choice of spending a few hundred for a tech call or a lot more to replace a burned-up rectifier.
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