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