EEVblog #544 - Fluke 5450A Resistance Calibrator Teardown

Описание

What's inside a vintage Fluke 5450A Resistance Calibrator used in cal labs to calibrate multimeters? Schematic: assets.fluke.com/manuals/5450A___imeng0000.pdf Coto reed relay: farnell.com/datasheets/1486738.pdf High Resistance measurement with a relay matrix: youtube.com/watch?v=fs2MfTW4o_Q youtube.com/watch?v=-mavHYV-H6o Forum: eevblog.com/forum/blog/eevblog-544-fluke-5450a-resistance-calibrator-teardown/ EEVblog Main Web Site: eevblog.com EEVblog Amazon Store: astore.amazon.com/eevblogstore-20 Donations: eevblog.com/donations/ Projects: eevblog.com/projects/ Electronics Info Wiki: eevblog.com/wiki/