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Re: My Audio Buddy problem

Subject: Re: My Audio Buddy problem
From: Rob Danielson <>
Date: Thu, 26 Aug 2004 10:08:12 -0500
At 11:37 PM +1000 8/26/04, Bill Rankin wrote:
>Hi All
>Thanks to Rob and everyone who has made suggestions re  my Audio 
>Buddy. I am following the discussion with great interest.
>If it is possible to power  the unit with batteries they would need 
>to be able to handle the current draw of the CAD M179 mic  which is 
>listed as 8 mA. I get the impression that these batteries would need 
>to be big and heavy am I right on this?

I got some conflicting results about battery duration possibly due to 
my lack of follow-through (time).  The first mod we made (Bill Berens 
and Evert, who is on the list)  powered an NT1A's and a mkh 40's for 
at least 4 hours on one set of four alkaline 9 volts. The second 
version with better battery connections sucked the 9 volt bats much 
faster for some reason. I stopped at the point I couldn't get it to 
power the CAD 179, but I'm sure there's an elegany solution  by 
someone who realy understands such circuits. Our mod still allowed 
one to use the 10vac wall wart when at home which is nice.  I'm up to 
my earballs with a project at the moment.  Anyone want me to ship it 
to them and take on finding a solution? I can't give it to them 
because the unit I can send officially belongs to the University. The 
reward would be helping quality on a budget recordists everywhere. 
There's a folder below with some results comparing a MP2 to the DC 
powered Audio Buddy and the Rode  NT1A to the Sennhesier MKH-40 mic. 
Later,  Rob D.

>I would need them to last at least an hour in the field.
>Bill Rankin
>Australian Wildlife Sound Recording Group
>[Non-text portions of this message have been removed]
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links

Rob Danielson
Film Department
University of Wisconsin-Milwaukee


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