Looking For a Phantom Power PCB With 15VAC Input

cpsmusic said:

Hi Folks,

I'm currently repairing a tube mic pre built by my late-Father. To get the 48V phantom power he tapped the HT which I can see is a bit dangerous! The power transformer has a 15VAC winding which I would like to use for phantom power. Does anyone know of a PCB that would be suitable for this (15VAC -> 48VDC). The only one I've been able to find is the G9 although it has additional sections that I don't need.

Cheers,

Chris

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radardoug said:

Just build it up on veroboard or tagstrips. Its only half a dozen components.

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user 37518 said:

If you want 48V from 15V you need what is called a boost converter, it is a switching converter that will raise the voltage, however it will need some filtering.

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Khron said:

Not necessarily - you'll note the thread title says "15V AC". With that, just a simple voltage tripler might suffice

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