A teardown of the front end PCB in the HP 35660A Dynamic Signal Analyser.
Dave does some preliminary investigation to see what opamps and FET’s are unsed in the analog front end to see if they can be upgraded for better performance.
This is more for Dave’s record than interesting info.
Previous video: http://www.youtube.com/watch?v=Y0jkPLuFdnM
Dave looks at some issues with fanning out tiny 0.4mm pitch BGA packages, via pad ...