https://stream.echo6.co/videos/watch/46edbdb4-f220-43ca-b317-8a370be33984 A demonstration of a homebrew receiver designed for SSB/CW reception and published in Lo-Key magazine December 2007. RF Amp: BC547 Mixer: 3N140 (FET) Local osc: 74HC04 Xtal filter: 4.434 MHz (3 xtals) IF amp: BC547 Det: 1N414 x 2 BFO: BC547 x 2 AF preamp & amp: TDA2822 Demonstration is tuning 40 metres (7 MHz) at 3:30pm from Melbourne, Victoria. 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) Sun, 10 May 2026 12:06:53 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/46edbdb4-f220-43ca-b317-8a370be33984 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.