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Re: How can I measure the bandwidth of an audio transformer with the HP8903B ?


 

You will need to match the source and load impedances to get an accurate result. Ideally you should also pass the same DC current through the core as the quiescent current of the amplifier as a DC current will tend to shift the B-H curve of the core, reducing inductance and therefore changing the frequency response. I've done similar with HF transformers in the past.

Thanks
Gavin

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