Recent content by Henryyyy

  1. H

    phono riaa measurements

    I think I still have to get a usb input device - macbook air doesn't have an audio input. Ta
  2. H

    phono riaa measurements

    I will, thanks for the excellent advice!
  3. H

    phono riaa measurements

    Hi John, I'll try that divider. The loading resistor is on the other side of the step up transformer (10X), so the 20K resistor is equivalent to 200R load (http://www.sowter.co.uk/phono-cartridge-transformers.php). That is what is recommended for the Benz MG cartridge. I hope I've got it...
  4. H

    phono riaa measurements

    Hi, thanks for the advice. If I understand, right, for the input into the preamp I will feed that with the output from my laptop adding a resistive divider to get the voltage lower (Any suggestion on rough values?). I wasn't really clear on what Matthew meant by loading - the cartridge is moving...
  5. H

    phono riaa measurements

    Hi, can anyone help me measure phono riaa curves with rew (or point me to the relevant posts). I have built a tube preamp with SUT and passive RIAA filter but I am not too happy with it. I am hoping that I can use rew to connect on either end of the preamp to measure how the filter is working ...
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