help designing swithing psu 12v (dc) to 36ov(DC) 30ma for guitarpedal tubeamp - diyAudio
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Old 3rd September 2014, 02:50 PM   #1
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Join Date: Oct 2008
Default help designing swithing psu 12v (dc) to 36ov(DC) 30ma for guitarpedal tubeamp

I'm searching for a schematic or any other assistance in building a small psu
that can convert 12v dc to 360v dc ( 30ma).
This will be used to power up a small guitar preamp with three smal dubbel triodes.
The thing needs to be compact because it will have to fir in a small Hammond box which wil be used as a guitarpedal.

Your help is most appreciated.
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Old 3rd September 2014, 09:30 PM   #2
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trobbins's Avatar
Join Date: Feb 2009
Location: Melbourne, Oz
Perhaps one option is:
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Old 4th September 2014, 06:18 PM   #3
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Destroyer OS's Avatar
Join Date: Nov 2005
Boost Buck Converter.
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Old 5th September 2014, 04:34 PM   #4
RJM1 is offline RJM1  United States
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Join Date: Jan 2010
Location: Titusville, Fl.
You might look here.
DC Power Supply 300V From battery 12V |
If you change the transformer from 12V to 9V you will get about 400 out instead of 300 and then either regulate the input voltage or output voltage for 360V out.

Last edited by RJM1; 5th September 2014 at 04:37 PM.
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