Ah! I might be able to help you there. Over on the micbuilders group there'=
s a nice paper put together by Ricardo Lee that describes a circuit designe=
d by David McGriffy for powering a variety of electret+FET capsules like th=
e EM172. I wrote a blog post about building EM172 mics with XLR plugs based=
on their work: =0D
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DIY Microphone: EM172 Capsule and XLR Plug https://tombenedict.wordpress.c=
om/2016/03/05/diy-microphone-em172-capsule-and-xlr-plug/ =0D
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https://tombenedict.wordpress.com/2016/03/05/diy-microphone-em172-capsule-=
and-xlr-plug/ =0D
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DIY Microphone: EM172 Capsule and XLR Plug https://tombenedict.wordpress.c=
om/2016/03/05/diy-microphone-em172-capsule-and-xlr-plug/ This is the last i=
n a four part series about powering the Primo EM172 microphone capsule. Par=
t 1 outlined the problem of how to provide 5-10v to the capsule an...=0D
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View on tombenedict.wordpres... https://tombenedict.wordpress.com/2016/03/=
05/diy-microphone-em172-capsule-and-xlr-plug/ =0D
Preview by Yahoo =0D
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This is how I wired up my SASS as well, putting David McGriffy's circuit o=
n the back end of some XLR panel connectors fitted into the back of the uni=
t. I don't really describe that part of the build, but you can see the resu=
lts in this post:=0D
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A Self-Contained Stereo Field Recording Setup https://tombenedict.wordpres=
s.com/2016/06/16/a-self-contained-stereo-field-recording-setup/ =0D
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https://tombenedict.wordpress.com/2016/06/16/a-self-contained-stereo-field=
-recording-setup/ =0D
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A Self-Contained Stereo Field Recording Setup https://tombenedict.wordpres=
s.com/2016/06/16/a-self-contained-stereo-field-recording-setup/ A project I=
=92ve been working on more or less led me by the nose toward a type of fiel=
d recording I really enjoy doing. The project requires relatively long reco=
rding...=0D
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View on tombenedict.wordpres... https://tombenedict.wordpress.com/2016/06/=
16/a-self-contained-stereo-field-recording-setup/ =0D
Preview by Yahoo =0D
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Thanks for the heads-up on the AT4022 mics. One of the options I'm looking=
at right now is to pick up a pair of AT4022 mics and a used SD MicPre off =
of Ebay. (I can't afford a 702 right now.) I need to finish a couple of job=
s before I can do that, though, so I've got some time.=0D
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