General Radio 2220 Features:
Microvoltmeter Mode with ranges of 50-0-50 µV and 500-0-500 µV.
Conductivity Mode is a threshold resistance tester for resistances below 75 ohms.
Signal Trace Mode has 600 kHz signal injected into the two shorted modes via the two clips.
The General Radio 2220 Bug Hound Microvolt Meter is a completely self-contained instrument designed to take over where the automatic board-test systems leave off. Modes of operation include the Microvoltmeter mode, Conductivity mode, and Signal trace mode.
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