https://stream.echo6.co/videos/watch/3d1f9b84-ea06-4ac6-8674-e25e015449a9 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 Forum: http://www.eevblog.com/forum/blog/eevblog-529-hp-35660a-dsa-upgrade-investigation/ Datasheets: http://www.farnell.com/datasheets/1465563.pdf http://www.cotorelay.com/2900.php http://www.ti.com/lit/ds/symlink/ne5534.pdf 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/ Wed, 10 Jun 2026 03:09:35 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/3d1f9b84-ea06-4ac6-8674-e25e015449a9 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.