Hi people,
By reason that I read there on forum about poor microphones that costs as much as the Neuros (It is a little sick, don't you think...) I've decided to post about my solution.
As you can see on the photos, battery box has got small connector for powering two Electret microphones (MCE 2500 {40-20000Hz}). If I need only batterybox (recording from soundboard), I can easily disconnect microphone circut.
Photo1 - Battery box without mics
http://www.ceskyinterier.cz/temp/QWY_BBpic1.jpgPhoto2 - Battery box detail (with fuse)
http://www.ceskyinterier.cz/temp/QWY_BBpic2.jpgPhoto3 - Microphones
http://www.ceskyinterier.cz/temp/QWY_MIC.jpgPhoto4 - Powered microphones
http://www.ceskyinterier.cz/temp/QWY_MIC_pwr.jpgAs you can see on the photo3, there is small circut on piece of PCB.
List of components:
2 pieces of Electrolytic tantalum capacitors 2,2 MicroFarads / 16 Volts
2 pieces of Resistors 4,7 Kilo Ohms (4k7)
1 piece of "jumper connector" ..it is similar to jumper which you probably know from your PC.
Simple scheme of circut for one mic is there.
http://eos.ges.cz/cenikweb/F/MICRO.jpg Positive electrode of Tantalum capacitor should be connected to the output. (Line-in jack)
BatteryBox's list:
8 pieces of SANYO accumulator 2100 mAh
1 piece of Battery holder size AA for 8 batteries
1 piece of Fuse for current 1A
..and piece of shielded cable
If you don't have any charger, i recommend MW 4798 (cpu controlled charger)
bye
-----Q-W-Y, Czech paranoid android-----