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B+ dilemma

I was building my new phono pre as a stand alone unit with a separate psu module, but then I realized that the psu on the line stage I just finshed building is strong enough to run both. I wanted to see if I could tap into that. The problem is the b+ on the line preamp is and needs to be 400vdc, and I need 250vdc for the phono pre.
I have been cruising the web trying to find a good, simple solution and not having much luck.
A dropping resistor in a tap off the b+ of the line stage is not recommended.
Could I use additional chokes and caps in an LCLC filer on the phono pre to drop the voltage? That would at least not require an additonal power tranny and rectifier.
Wondering what you folks might have tried?
Thanks!


Edits: 07/16/14 07/16/14 07/16/14
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Topic - B+ dilemma - vinnie2 04:38:56 07/16/14 (58)
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