LABORATORY TEST REPORT
Mar 27, 2019
3 minutes
Steve Holding
Newport Test Labs measured the gain of the Modwright PH 9.0’s moving-magnet input using the 0dB gain setting as being 51.24dB, just shy of Modwright’s specification of 52dB, meaning that for a 10mV input, the PH 9.0 will deliver 3.65-volts at its output.
Switching to the –6dB gain setting reduced the output voltage to 1.88-volts, which is 45.48dB of gain and 5.76dB down, again very, very close to Mod-wright’s specification of –6dB.
At the –12dB setting, the output voltage dropped
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