On 07/10/2010, at 9:16 AM, Gene Dorcas wrote:
> My experience is that to be sure to adequately power a pair of EM172 or
> EM158 it's best to use a battery box. Here's a simple schematic that
> illustrates the basic battery box circuit.
>
>
>
> http://www.frogloggers.com/images/BatteryBox.jpg
I ordered a couple of the EM172's over the weekend to have a play with, and
came across a fairly neat circuit design for phantom powering the WM61a
capsules. I assume that this will work with the EM172's without too much
tweaking?
http://www.suite101.com/content/how-to-use-an-electret-capsule-with-p48-power-a150317
He also has an article regarding battery boxes with a schematic for a stereo
version of Gene's circuit.
http://www.suite101.com/content/use-a-battery-box-with-plug-in-power-microphones-a140741
I believe the author Richard Mudhar is one of the Wildlife Sound Recording
Societies (UK) resident tech guru's.
cheers
Paul
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