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Thread: Interstage transformer

  1. #1
    Supporting Member mozz's Avatar
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    Interstage transformer

    Do you think this will work for a interstage (ala gibson style) transformer? Pulled from old military gear, i have about a dozen of these. Ratio is about 1:1, i was putting 70mv on the primary and getting about 68mv on each secondary. I sweeped them on the Sys Comp and they are really flat up to about 2mhz. Some are written 1kv test voltage. Just looking ahead to the next franken-project.

    20171118_193446.jpg

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    Senior Member mhuss's Avatar
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    1:1 is good for isolation, but not for impedance transformation.

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    Supporting Member mozz's Avatar
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    Looking to use as a phase splitter before the output tubes.

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    I guess if you don't need any gain, that should work.
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    Supporting Member mozz's Avatar
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    Only thing that bothers me is the DC resistance is about 13 ohms. Chances are the inductance is low too, will measure that tomorrow. Maybe if i use a 12au7 driver. They may have been in a RF circuit, i'm not sure what they came out of. I guess i have to build something to find out. Maybe a simple Musicmaster bass circuit would let me know if they will work.
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