• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Practical aspects of LCR RIAA Equalization

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Dear all!

Some time ago I wrote a small white paper around this topic. I would like to point some more attention for those who want to implement such a design and can use this as a little guideline.

As I always had the implementation together with tube amplifiers in mind, so I will place it here:

http://www.sowter.co.uk/pdf/LCR-RIAA%20Ahlswede.pdf
 
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Interesting to see Sowter hosting this. They recently wound me a set of inductors for an LCR design based on a 6.2K impedance, with the initial lashup results proving really quite accurate. To reiterate, specifying DCR for the inductors properly is vital in getting the EQ as it should be.
 
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