Hello,
Is there a way to use these cheap eBay phantom power adapters with a Linkwitz Panasonic wm61a modded 3wire capsule??
I am not an expert in electronics and it will be helpful if someone can draw on the photo what to modify or where to solder the capsule wires.
Thank you!
Is there a way to use these cheap eBay phantom power adapters with a Linkwitz Panasonic wm61a modded 3wire capsule??
I am not an expert in electronics and it will be helpful if someone can draw on the photo what to modify or where to solder the capsule wires.
Thank you!
The easiest would be to convert the mic capsule back to two wires. Otherwise, I'd want to trace the schematic of the board and go from there, which is not very helpful to you.
But it might be easier to just build one from scratch:
http://levysounddesign.blogspot.com/2010/09/electret-condenser-microphones.html
By the way, for anyone else looking for these on ebay, the magic search words were: phantom electret microphone
But it might be easier to just build one from scratch:
http://levysounddesign.blogspot.com/2010/09/electret-condenser-microphones.html
By the way, for anyone else looking for these on ebay, the magic search words were: phantom electret microphone
My fellow mod @wintermute has designed a very nice one, but there is not yet a PCB. It sounds really good. The Dayton, Behringer and similar measurement mics do this, I think with 2 or 3 transistors much like the photo you posted above. The Behringer ECM is all tiny thru hole parts!
Thanks Pano. My implementation was on experimenter board. Pic attached. Also attached a schematic that @kevinkr did for it which is much cleaner than the one I have 😉 Note that I have dropped the 1uF caps down to 100n so that I could use better quality caps. it results in a little more rolloff at low frequencies, but what I found was that most of that low freq stuff was noise that would end up filtering out post recording anyway.
Also depending on your phantom power supply some adjustment of resistors may be needed for lowest possible noise, but the tolerance is good as is.
Here is a link to a recording which is surprisingly airy on headphones. maybe skip to around 1:15 to start if too boring at the beginning... https://drive.google.com/file/d/1fX8ycbdRN-brjXSW9I2KaUBjOJ7Unzpy/view
Also attached another recording, which has pretty good definition and space.
Tony.
Also depending on your phantom power supply some adjustment of resistors may be needed for lowest possible noise, but the tolerance is good as is.
Here is a link to a recording which is surprisingly airy on headphones. maybe skip to around 1:15 to start if too boring at the beginning... https://drive.google.com/file/d/1fX8ycbdRN-brjXSW9I2KaUBjOJ7Unzpy/view
Also attached another recording, which has pretty good definition and space.
Tony.
Attachments
I got some of these tiny electret mic adapters and there was one faulty so I tryed to copy the layout schematic of this. As the components are all SMD. Maybe it will be helpful for someone..
The addiction I would like to this schematic is a HPF with a 3point switch (Flat-200hz-400hz) but I don't know how to modify this schematic as my electronics knowledge is limited. Is there anyone that can help me to modify this??
According to SMAART analyzer results, there is a build in HPF around 50-63hz but it is low enough for the application I need to use it.
Thank you.
The addiction I would like to this schematic is a HPF with a 3point switch (Flat-200hz-400hz) but I don't know how to modify this schematic as my electronics knowledge is limited. Is there anyone that can help me to modify this??
According to SMAART analyzer results, there is a build in HPF around 50-63hz but it is low enough for the application I need to use it.
Thank you.