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-   Sony VX2100 / PD170 / PDX10 Companion (https://www.dvinfo.net/forum/sony-vx2100-pd170-pdx10-companion/)
-   -   Need Adapter Plans (https://www.dvinfo.net/forum/sony-vx2100-pd170-pdx10-companion/8679-need-adapter-plans.html)

Joe Gioielli April 15th, 2003 08:49 PM

Need Adapter Plans
 
Well, I tried searching the DV Mag website. Very cool, but I could not find the article authored by Mr. Rose that I need. What I am looking for is the plans for an XLR adapter that has the capaisator[sp] that will block the dc voltage coming out of the vx.

Thanks for the help. This is the best site with the best people on the Web!

Bryan Beasleigh April 15th, 2003 11:14 PM

Took a few seconds to type capacitor into the search box and viola. Had you posted a question jay would have responded quickly'


The proper configuration is

XLR stereo miniplug
1 ---- sleeve
2 --*- tip AND ring
3 ---- sleeve (or tie to pin 1 at the XLR)

* -- If the camera's power is causing distortion in the mic, put a 100 uf / 10 volt capacitor here, + side to miniplug.

http://www.dv.com/forums/showReplies.jhtml?sid=1&fid=3&tid=57500005

Courtesy of Jay Rose at DV.com

As I have written in an other thread, it is cheaper to buy the cable and modify it with a capacitor. Hosatech cables are under $10 at B&H. You will have a hard time finding a 90 degree molded male stereo jack. You use a straight jack and your begging for trouble.

http://www.hosatech.com/audio_cables_index_3.html

look for the XVM-101

http://www.bhphotovideo.com/bh2.sph/FrameWork.class?FNC=ProductActivator__Aproductlist_html___158476___HOSMMRAXF1___REG___CatID=0___SID= F4CC1D73CF0

Joe Gioielli April 16th, 2003 08:25 AM

Thanks
 
Thanks Bryan! You guys always come through! I tried searching under "XLR" amd "adapter. Dohh! I

Thanks Again!

Peter Kulka April 23rd, 2003 01:32 PM

blocking capacitor
 
As Bryan Beasleigh wrote in his post:

* -- If the camera's power is causing distortion in the mic, put a 100 uf / 10 volt capacitor here, + side to miniplug.

From my experience capacitor 100uF is too high for audio signal.
Best capacitance should be betwen 100nF to 1uF.
After I checked service manual for VX2000, microphone circuit is blocked wit 100nF non polarized capacitor.

Chris Reinhardt August 8th, 2003 02:18 PM

so, what is the best capacitor to use then for the vx-2000?

Chris Reinhardt August 8th, 2003 02:25 PM

someone had their child draw a circuit diagram of this; http://www.audiotheater.com/miniphantom.html this is correct, correct?

Peter Kulka August 8th, 2003 08:47 PM

Lower value of capacitor will cut-off low frequencies for speech is usualy value 33nF to 47 nF. For wider range of frequencies ( like music frequencies, use 10MF to 47 MF.
100MF and up will not hurt the system, just is becoming to bulky to fit inside any connector.
In my aplication ( preamplifier for microphone) used with VX2000 I used 47MF polarized capacitor 16V tantalum.

Bryan Beasleigh August 9th, 2003 08:40 PM

"someone had their child draw a circuit diagram of this"
Looks like something i might draw. Not pretty but at least the artist understands the subject matter.


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