Need Adapter Plans at DVinfo.net

Joe Gioielli · April 15th, 2003, 08:49 PM

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 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

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.

April 15th, 2003, 08:49 PM	#1
Joe Gioielli Regular Crew Join Date: Mar 2003 Location: New Port Richey, Fl Posts: 142	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! __________________ Why ask me? I thought you were in charge!

April 16th, 2003, 08:25 AM	#3
Joe Gioielli Regular Crew Join Date: Mar 2003 Location: New Port Richey, Fl Posts: 142	Thanks Thanks Bryan! You guys always come through! I tried searching under "XLR" amd "adapter. Dohh! I Thanks Again! __________________ Why ask me? I thought you were in charge!

April 23rd, 2003, 01:32 PM	#4
Peter Kulka Regular Crew Join Date: Apr 2003 Location: Newark, CA Posts: 34	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.

April 15th, 2003, 11:14 PM	#2
Bryan Beasleigh Trustee Join Date: May 2002 Location: Barrie, Ontario, Canada Posts: 1,922	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

August 8th, 2003, 02:18 PM	#5
Chris Reinhardt New Boot Join Date: Jul 2003 Posts: 13	so, what is the best capacitor to use then for the vx-2000?

August 8th, 2003, 02:25 PM	#6
Chris Reinhardt New Boot Join Date: Jul 2003 Posts: 13	someone had their child draw a circuit diagram of this; http://www.audiotheater.com/miniphantom.html this is correct, correct?

August 8th, 2003, 08:47 PM	#7
Peter Kulka Regular Crew Join Date: Apr 2003 Location: Newark, CA Posts: 34	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.

August 9th, 2003, 08:40 PM	#8
Bryan Beasleigh Trustee Join Date: May 2002 Location: Barrie, Ontario, Canada Posts: 1,922	"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.