EEVblog #777 – Keithley 177 Microvolt DMM Repair

Come on a ride as Dave repairs an intermittent Keithley 177 Microvolt DMM, garden paths and all.
Service manual & Schematic
ADC Datasheet
555 Timer T-Shirt HERE
Negative Feedback T-Shirt in the EU through Fabrily
Forum HERE

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