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The Nelson-Ross PSA-011 is a spectrum analyzer plug-in for [[500-series scopes]]. | The Nelson-Ross PSA-011 is a spectrum analyzer plug-in for [[500-series scopes]]. | ||
The center frequency range is 10 Hz to 20 kHz. | The center frequency range is 10 Hz to 20 kHz. It can display amplitude in | ||
linear or log scale. The voltage-controlled local oscillator is tuned | linear or log scale. The voltage-controlled local oscillator is tuned | ||
using a variable-reactance tube, V6, a [[6201]]. | using a variable-reactance tube, V6, a [[6201]]. |