DC Voltage Doubler From Phantom Power

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sr1200

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Dec 6, 2010
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Long Island, NY USA
I'm trying to figure out the best way of going about getting somewhere near 100v to polarize an old mic with the least amount of components.
Can I build something to double the phantom source, or should i build a dedicated power supply? (was thinking a DC-DC boost, but cant find one that will take 48v, but could knock down the 48 to something lower to work with the constraints of something like a UC3843/UC3845.
Other details: Its an old Grundig Mic that needed around 100v to polarize but didn't need a "pre" pre.
 
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