https://stream.echo6.co/videos/watch/7cd0e217-2503-454c-b571-a3f5484e2505 One item mailbag! A look at the Swissmicro DM42, the world's most precise pocket calculator. A clone and improvement of the famous HP42S, with open source firmware based on the Free42 platform. https://www.swissmicros.com/dm42.php http://thomasokken.com/free42/ Forum: http://www.eevblog.com/forum/blog/eevblog-1159-worlds-most-precise-pocket-calculator/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g Buy anything through that link and Dave gets a commission at no cost to you. Stuff I recommend: https://kit.com/EEVblog/ Donate With Bitcoin & Other Crypto Currencies! https://www.eevblog.com/crypto-currency/ T-Shirts: http://teespring.com/stores/eevblog Likecoin – Coins for Likes: https://likecoin.pro/@eevblog/dil9/hcq3 Thu, 30 Apr 2026 16:50:43 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/7cd0e217-2503-454c-b571-a3f5484e2505 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.