I built the ZZRX-40, designed by AAØZZ and kitted by The Four State QRP Group. It’s a small “starter” kit for a 40-meter CW direct conversion receiver. Fun! You can get the kit at https://goo.gl/h7VDDN. To see the K7AGE tutorial video, see https://youtu.be/lheknDnPKbM.
You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.