Valve Itch phono

diyAudio Chief Moderator
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Only a resistor was good on the Partridge, Jensen needs R+C. Subjectively the treble opens up and some edge reminding mild mistracking goes out. It can be somewhat judicious for exact R+C values regarding synergy with a certain preamp and system.
 
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10mV RMS after SUT with RC network 6K8 + 100pF
 

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diyAudio Chief Moderator
Joined 2002
Paid Member
Measurement without RC

Something's slow in the measurement loop for 10kHz squares to pass properly. Anyway it still changes with the RC on the second screen, the proper square measurements I have posted already for exact same transformer (#1836) so just apply the Zobel and if you want somewhat different C value you can do it empirically.