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Old 26th August 2010, 11:43 PM   #1
ro9397 is offline ro9397  United States
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Default Transformer, mic 200 Ohm, balanced-to-SE?

Need two high-performance balanced-to-SE mic transformers, approximate maximum $50ea.

A 200-Ohm battery powered stereo condenser mic will connect to the external mic input of a camcorder.

I'll adapt any physical form to the application.

Several impedance matching were found, but strangely no balanced-to-SE.

TIA!
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Old 2nd September 2010, 12:04 PM   #2
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You can hook up any trafo single ended, just ground one output leg and don't use the center tap if there is one.
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Old 2nd September 2010, 12:21 PM   #3
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You might be able to wire the microphone for unbalanced operation and eliminate the transformers.
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Old 2nd September 2010, 10:06 PM   #4
ro9397 is offline ro9397  United States
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I presume the shorter the mic cable and/or less the RF problem, the more likely the best sound quality will be just to employ the mic SE without an active external balanced mic preamp.

And conversely: The longer the cable and/or the more the RF problem, the more likely will the sound quality improve by adding an active balanced preamp in series between the mic cable output and just a few inches in front of the SE input.

Is this "sound" thinking? (no pun intended)
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