Inside the HP 3478A Multimeter A quick follow-up to the previous 3457A teardown video. Forum Topic HERE Photos HERE Podcast: Download

Teardown Tuesday. Inside the HP 3457A 6.5/7.5 digit bench multimeter. Service Manual HERE and HERE and HERE LM339 Reference User Manual HERE Forum Topic HERE Photos HERE Podcast: Download

EEVblog Mailbag Podcast: Download

A tour of Agilent Australia’s new VOSCAL (Volume On-Site Calibration) portable NATA accredited calibration lab in a customised expandable shipping container, with Metrologist Peter Daly The gear alone inside is worth a cool $3M. Photos HERE Forum Topic HERE Podcast: Download

A look at one of the original HP 5061A Cesium Beam atomic clock frequency standards used in the “flying clocks” experiment in the 1960’s, that showed (not definitely at the time) that time dilation as part of Einstein’s relatively theory was correct. The effect was not confirmed until a more …