It is here on the forum:
https://groupdiy.com/threads/tab-funkenwerk-t13-moby-cinemag-t14-transformers.82811/
Telefunken M221 with defective transformer
- Thread starter RuudNL
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https://groupdiy.com/threads/tab-funkenwerk-t13-moby-cinemag-t14-transformers.82811/
Hello RuudNL,
The transformer on my M221A was also defective. I successfully swapped it for an AMI T28. Compared to my other two M221A with original transformer, the bass is a little more pronounced and the sensitivity is 2 dB higher. - By the way, a Hiller T14 transformer is installed in my M221, the predecessor of the M221A. - The transformer on the M221A could be changed without complete disassembly, you just have to carefully screw the two threaded rods one turn at a time until they are both unscrewed from the base. To be on the safe side, I kept a fairly long stretch of cable from the transformer, which doesn't look that nice, but is helpful if you need to change something on the microphone.
The transformer on my M221A was also defective. I successfully swapped it for an AMI T28. Compared to my other two M221A with original transformer, the bass is a little more pronounced and the sensitivity is 2 dB higher. - By the way, a Hiller T14 transformer is installed in my M221, the predecessor of the M221A. - The transformer on the M221A could be changed without complete disassembly, you just have to carefully screw the two threaded rods one turn at a time until they are both unscrewed from the base. To be on the safe side, I kept a fairly long stretch of cable from the transformer, which doesn't look that nice, but is helpful if you need to change something on the microphone.
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