Where's the shunt resistor for the attenuator? Without that, you're not driving the transformer with the correct source impedance. Nor attenuating properly.
Post 13 says 150R, that's the loading resistance for the cart or that's the output impedance or DC resistance of the cart?
The phono preamp have 60pF to 70pF range at our about 85x gain including strays, have I to subtract this value of the 100-220pF that I have loaded the secondary, for example use 40-150pF in place of 100-220pF?
Did you read my earlier posts?
edit: That may have been a different thread. In any case, do not forget to take into account the probe's capacitance. From your Post 11:
edit: That may have been a different thread. In any case, do not forget to take into account the probe's capacitance. From your Post 11:
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