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: http://www.utwente.nl/tnw/slt/doc/apparatuur/multimeters/keithley177.pdf
Datasheet: http://www.datasheets.pl/integrated_circuits/I/ICL/ICL71C03.pdf
555 Timer T-Shirt:
http://teespring.com/555timer-grey3
Negative Feedback T-Shirt in the EU:
https://fabrily.com/negativefeedback
Forum: http://www.eevblog.com/forum/blog/eevblog-777-keithley-177-microvolt-dmm-repair/msg725852/#msg725852

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