Measurmeants for preamp with 12AX7!!

Discussion in 'The Projects Forum' started by Petrus Armagedon, Jul 4, 2011.

  1. Petrus Armagedon

    Thread Starter New Member

    Jul 1, 2011
    24
    0
    Hello!
    Here are some measurements i did see!
    [​IMG][​IMG]The figure B shows the response of incoming sine wave of 1kHz with adjustable amplitude at the output of 0dB.
    Second harmonic is -47dB (0.78%), and the third harmonic at -62dB (0.15%). Many good features for the right Tube sound!

    thanks

    P.S.
    This preamp with tube,.... giving it the right sound-believe it or not!
    The second-harmonic KILLS!!!!,.... understood in the enjoyment!
    Chees
     
    Last edited: Jul 6, 2011
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