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WL183 external battery powering (was WL183 vs. WL93

Subject: WL183 external battery powering (was WL183 vs. WL93
From: "Rob Danielson" danielson_rob
Date: Fri Jun 16, 2006 4:46 pm (PDT)
Makes a lot of sense, Brian, and your circuit explanation too. I
believe Curt Olson tried a similar battery powered supply for his
WL183's with complications,
http://bioacoustics.cse.unsw.edu.au/archives/html/naturerecordists/2005-08/=
msg00229.html
Maybe someone has  succeeded and not yet reported it yet. :-)
Recordists gain requirements vary, but ECM capsules' signals remain
mic level with a battery boxes, right?   Rob D.

At 2:47 PM -0700 6/16/06, Brian Dasilva wrote:
>A better plan would be to power the WL183 with a 9vdc battery box
>and then into the line in on the recorder. I've not powered the 183s
>but I started out making mic arrays out of the Panasonic capsules.
>They have the same voltage requirements as the 183s and can also be
>run on the recorders pip but they work much better at 9V than they
>do at 2.5V. Does anyone have the wiring diagram of the 180 series
>mics.  Oppps... there it is in the link. Ok... Look at this page
>http://www.mp3forkidz.com/mic/mod.html       Treat the WL183s as a 3
>wire Linkwitz Mod. Same circuit.   Pin 1 on the mics connector
>(shield in the cable) To the Battery - and the bottom of the 10k
>resistor... Pin 2 on the mics connector (red wire in the cable) to
>the Battery +...    Pins 3,4 on the mics connector (black wire in
>the cable) to the junction of the 10k resistor and the 2.2 uf cap.
>Your audio then goes into the recorder from the other side of the
>cap and the ground.
>
>



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