Will the Cinemag 2510 actually work for a tube mic? (8:1, but small)

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midwayfair

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https://cinemag.biz/mic_output/mic_output.php
https://cinemag.biz/mic_output/PDF/CM-2510.pdf

I have one of these in my transformer stash, and I think I got it (based on the documentation) for a tube mic. I don't think I would have bought it by accident, but it's kind of smaller than I would have expected for a triode output stage, and it's not the correct ratio for any mics that I know of for certain. But I can't for the life of me think of why I would have gotten this high of a ratio since I use 4:1 for FET mic builds.

This is the circuit I'm building off of:
http://www.aurycle.com/manual/a5500mp-schematic_v2.jpg

I don't mind making changes to that circuit -- I'm mainly using the body, PCB, and psu box anyway.
 
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