https://stream.echo6.co/videos/watch/1cab070b-e41f-4623-b7a5-8c199ea357c7 Improving the selectivity and weak signal sensitivity of a crystal set. Discussion at http://theradioboard.com/rb/viewtopic.php?t=6660 PS: If you liked this video please consider supporting Amateur Radio VK3YE by: Subscribing on YouTube,, Checking my books page at https://books.vk3ye.coM, Shopping on Amazon via: https://amzn.to/3iiDQXv, or, Shopping on eBay via: https://ebay.us/i9DuWP (then if you buy something I'll get a small commission at no cost to you) Tue, 05 May 2026 00:06:35 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/1cab070b-e41f-4623-b7a5-8c199ea357c7 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.