1. Radio QRP - http://www.geocities.ws/radio107mhz/
2. Lidia 40 project (Direct conversion receiver CW/SSB for 40m band) - https://www.qsl.net/sp5ddj/Lidia%2040%20DC%20Receiver/Lidia%2040%20-%20DC%20Receiver.htm
3. LY3H: MAGLOOP 10–24 MHZ - https://www.ly3h.net/magloop-10-24-mhz/
4. A Wide Bandwidth Active Loop Receiving Antenna (Широкополосна активна контурна приймальна антена) - https://www.qsl.net/m0ayf/active-loop-receiving-antenna.html
5. Buddipole PowerMini2 Solar Charge Controller (Новинка від Buddipole – це оновлена версія їхнього контролера сонячного заряду) - https://www.buddipole.com/powermini.html
