Teardown Tuesday.<br />Inside the HP 3457A 6.5/7.5 digit bench multimeter.<br />Service Manual:<br />http://cp.literature.agilent.com/litweb/pdf/03457-90011.pdf<br />http://cp.literature.agilent.com/litweb/pdf/03457-90012sg.pdf<br />http://f6fzk.free.fr/DOCUMENTATION/DOC%20HP/CD1/3457a_svc.pdf<br />User Manual: http://cp.literature.agilent.com/litweb/pdf/03457-90003.pdf<br />LM399 Reference: http://cds.linear.com/docs/en/datasheet/LM199399fb.pdf<br /><br />Forum Topic: http://www.eevblog.com/forum/blog/eevblog-426-hp-3457a-multimeter-teardown<br /><br />Photos: http://www.flickr.com/photos/eevblog/sets/72157632803534496/<br /><br />EEVblog Main Web Site:<br />http://www.eevblog.com<br />EEVblog Amazon Store:<br />http://astore.amazon.com/eevblogstore-20<br />Donations:<br />http://www.eevblog.com/donations/<br />Projects:<br />http://www.eevblog.com/projects/<br />Electronics Info Wiki:<br />http://www.eevblog.com/wiki/
