Unknown audio transformer, anyone recognize the logo?

[kato]

Google knows nothing about this odd model of transformer.
Anyone recognize the brand logo?





I have no idea what to do with these. Any suggestions?

 

[emrr]

Ohm it out

 

[ruffrecords]

https://groupdiy.com/threads/tni-transformers-id.81039/

Cheers

Ian

 

[kato]

Ohm it out

Like, resistance?

It's weird, I get 5Ω on one coil, and 30Ω on 2 other coils. Everything else is N.C.

Does this hint at anything?

 

[emrr]

It hints at (2) 30R in series as 600Ω, and 75-150Ω on the 5R. Certainly in that neighborhood, if it's intended as an audio range transformer. It won't be a high level transformer, would expect +0dB max ish at the lowest frequency it's expected to pass.

 

[kato]

Thanks Doug! Does that have any obvious audio uses that spring to mind? For example, a direct box?

 

[kato]

https://groupdiy.com/threads/tni-transformers-id.81039/

Cheers

Ian

Thanks.

I should've guessed since it says "TNI" right on the can.

 

[CJ]

Probably meant for a transistor amp, maybe a phase splitter for an output stage,

Do you have a signal generator, scope , LCR meter , etc?