https://stream.echo6.co/videos/watch/66b8c063-0be8-4adf-8e9b-772e052d840f Demonstration of direct conversion CW QRP transceiver built into a plastic lunchbox. Not used for about 15 years, this rig uses a 3.58 MHz ceramic resonator and has a 2 watt output. The transmitter comprises a 4049 driving a VN10KM - circuit at http://home.alphalink.com.au/~parkerp/projects/pro80cw.htm . The direct conversion receiver uses a now obsolete CA3028 IC and IC audio amplifier. Contacts were made with VK3JS (a local) and VK100WIA, operated by the Adelaide Hills Amateur Radio Club (about 600km distant). 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 09:23:45 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/66b8c063-0be8-4adf-8e9b-772e052d840f 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.