DIY Mic Pre Kits, Lunchbox Mic Preamp Kits, Power Supply Kits

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owel
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PostPosted: Sun Oct 07, 2007 1:44 pm 
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Joined: Mon Jun 25, 2007 6:09 pm
Posts: 1261
Location: Music City
Just an update.....

SUCCESS!!!! +18, -18 and +48 volts for phantom power using (2) 9-volt batteries.

Right now, everything is on a breadboard... need to package it and layout a PCB for it. PSU add-on for battery operation will work with my existing PSU-1848 or PSU-2448 Power Supply kit.

Tested operation with my power-hungry FET condenser mic. Oh yeah!!!! Nice hot output and plenty of headroom.

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toyoto
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PostPosted: Sat Dec 15, 2007 3:53 pm 
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Location: france
Great !
i'm curious to know more about this DC/DC converter, my 2 sc-1 will be powered with battery, i'll need it!

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owel
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PostPosted: Sun Feb 10, 2008 9:43 am 
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Location: Music City
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Final PCB design below: Revision 1.4

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At the moment, I'm using a wall wart to power this converter.
But a single 9V battery also worked in my testing.

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sstillwell
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PostPosted: Sun Feb 10, 2008 11:31 am 
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Joined: Fri Oct 26, 2007 10:53 am
Posts: 39
owel wrote:
But a single 9V battery also worked in my testing.


:shock:

wow.

That is all.

Scott
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flycam
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PostPosted: Wed Oct 15, 2008 4:16 pm 
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Joined: Sun Aug 24, 2008 8:41 am
Posts: 2
Location: Wangen, Germany
awesome, I'm really interested in that PSU. Would you mind sharing some info, so I could build one for my camera? I know from your blog that the converter inside the TS-2 is even better (smaller).
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teerok
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PostPosted: Wed Oct 15, 2008 8:07 pm 
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Joined: Mon May 19, 2008 3:47 pm
Posts: 49
Location: San Francisco
my current theory is that owel is from the future.
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Berwin
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PostPosted: Sat Feb 07, 2009 6:09 pm 
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owel wrote:
But a single 9V battery also worked in my testing.


any news about that? :)
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