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Re: My Audio Buddy problem.

Subject: Re: My Audio Buddy problem.
From: Rob Danielson <>
Date: Wed, 25 Aug 2004 11:49:15 -0500
Something ingeniously simple like this is what we
need. I just tried 10 volts into my Audio Buddy
and the main power LED doesn't light.  I recall
discussion about Len Moskowitz's involved M-Audio
Duo modification for portable DC which also has
the 10 VAC input.=A0 The phantom power LED will
light with a 10 VDC input; this might be a clue
as to getting more power to this part of the
circuit. We were attaching the 4- 9volt batteries
for +18 and -18 before the regulators. The
phantom voltage provided was low, ~40 volts. The
A-B spec sheets shows the 10VAC at 300ma; the 9
volt batteries don't seem seem have have enough
current. If someone on this list familiar with
this kind of circuitry  has the interest and time
to work out a portable power solution, I'll send
them my Audio Buddy to study and modify.  Best,
Rob D.

=3D =3D =3D

At 7:31 AM -0700 8/25/04, umashankar wrote:
>first off, you can connect a 9 v dc supply where 9 v
>ac is required. you may in fact need more than 9 volts
>- approximately 9 x 1.4 volts (which is what would be
>happening if the 9 volt ac was rectified and smoothed
>inside the audio buddy.
>9 volt dc should cause absolutely no harm.
>--- Bill Rankin <> wrote:
>>  Hi All
>>  Way back in February this year  there was a
>>  discussion on the CAD M179 microphone which
>>  Walter,Klas and others reckoned was a pretty good
>>  low noise mic for the price. So recently, when my
>>  wife had to go on a  business trip to the States I
>>  took the opportunity to suggest that she by me a
>>  present while she was there ;-)
>>  Now, realising I also  needed  phantom power for the
>>  mic I thought I would also get the small "Audio
>>  Buddy" a dual preamp and phantom power supply unit
>>  which had  also has been previously mentioned by
>>  members of  this group  as a good unit.
>>  However I think I outsmarted myself. I thought the
>>  Audio Buddy would be able to be powered in the field
>>  using a gel cell battery by dropping a 12v down to
>>  the required 9 volts but on unpacking the unit back
>>  here in Australia I find that the 9 volt power
>>  required is 9 volts AC not DC as I originally
>>  thought. I guess I didn't read the specs properly.
>>  Do any of you electronic experts know how I can
>>  power the Audio Buddy in the field? I am only a
>>  novice in the soldering iron department  but can
>>  follow a basic  diagram.
>>  I intended to use this setup in the field  with an
>>  additional CAD M179 mic (if the first one turned out
>>  to be satisfactory) for stereo atmospheres and so
>>  weight was not going to be a problem once I had
>>  carted the stuff to the right spot of course.
>>  Bill Rankin
>>  Australian Wildlife Sound Recording Group
>  > 
>  >


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