Teardown Tuesday
Inside the Keithley 2015 THD 6.5 digit bench multimeter.
Not just a multimeter, it does low noise signal generation and automated audio THD system measurement.

Forum Topic: http://www.eevblog.com/forum/blog/eevblog-478-keithley-2015-thd-multimeter-teardown/

Service Manual: http://www.tequipment.net/ProductImages/Keithley/2015/media/2015_doc_2.pdf

Photos: http://www.flickr.com/photos/eevblog/sets/72157633936809995/

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