XFMR Help?

Goldstache · 9th December 2011, 05:28 AM

First Post!!!! Hurrah!!!!
I am wanting to put one of these in a tube drive I made for creative purposes.
I want to know the ratio of the transformer and where to find a cheapo/medium priced candidate.

Any help identifying what's inside this puppy would be helpful.

It's just female XLR-XFMR-male TS jack.

Heres the spec link:

http://www.eu.audiotechnica.com/en/r...202_cp8201.pdf

It says 250 ohm to 50K. So does that mean its a 1:200 ratio?????!!!!!!
That sure doesn't sound right
Thanks in advance.

EssB · 9th December 2011, 10:04 AM

That link doesn't work.
What you describe sounds like an inline microphone transformer designed to connect a low impedance balanced microphone to a high impedance unbalanced mic input.
If it's really 250 to 50K then the turns ratio will be approx 1:14 because the impedance ratio is the square of the turns ratio.

Goldstache · 9th December 2011, 12:38 PM

Thanks so much EssB!!! Cheers!

9th December 2011, 05:28 AM	#1
Goldstache diyAudio Member Join Date: Dec 2011	XFMR Help? First Post!!!! Hurrah!!!! I am wanting to put one of these in a tube drive I made for creative purposes. I want to know the ratio of the transformer and where to find a cheapo/medium priced candidate. Any help identifying what's inside this puppy would be helpful. It's just female XLR-XFMR-male TS jack. Heres the spec link: http://www.eu.audiotechnica.com/en/r...202_cp8201.pdf It says 250 ohm to 50K. So does that mean its a 1:200 ratio?????!!!!!! That sure doesn't sound right Thanks in advance.

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9th December 2011, 10:04 AM	#2
EssB diyAudio Member Join Date: Jan 2009	That link doesn't work. What you describe sounds like an inline microphone transformer designed to connect a low impedance balanced microphone to a high impedance unbalanced mic input. If it's really 250 to 50K then the turns ratio will be approx 1:14 because the impedance ratio is the square of the turns ratio.

9th December 2011, 12:38 PM	#3
Goldstache diyAudio Member Join Date: Dec 2011	Thanks so much EssB!!! Cheers!

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