https://stream.echo6.co/videos/watch/de39dd51-b3e4-4265-adbe-4cc6010c8b58 The HF crystal set you saw in Part 1 has had a makeover, with a new coil and antenna coupling unit. It now covers 80 and 40 metres and is more selective. This video tells a bit about it and demonstrates its use on 40 metres. I'll also show the benefits of exalted carrier reception - using a local oscillator when receiving weak AM signals. Read the following if you wish to build your own: http://members.shaw.ca/ve7sl/crystal.html http://www.thelenchannel.com/1crystal.php http://www.oldradioworld.de/gollum/ http://makearadio.com/ http://www.crystalradio.net/ http://members.ozemail.com.au/~radio/tuggle.html A full article describing this unit also appears in 'Amateur Radio' Jan-Feb 2013. 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) Sat, 09 May 2026 05:58:17 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/de39dd51-b3e4-4265-adbe-4cc6010c8b58 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.