https://stream.echo6.co/videos/watch/af48efe9-d66e-4959-a47f-517c12b81108 Dave scored a cheap non-working Stanford Research SR650 8 pole programmable elliptical filter on ebay. Can it be fixed? Well, yes, but it looks like there will be a part 2... http://www.thinksrs.com/products/SR600.htm Mains Filter datasheet: http://www.jameco.com/Jameco/Products/ProdDS/1174803.pdf Partial schematic: http://www.ens-lyon.fr/DSM/AGREG-Physique/oral/Notices/N041-023.pdf Forum: http://www.eevblog.com/forum/blog/eevblog-620-repair-stanford-research-sr650-programmable-filter/ 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 10:07:49 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/af48efe9-d66e-4959-a47f-517c12b81108 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.