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Vacuum tubes are an old, but fascinating technology that was used before transistors were invented. We can learn how simple circuits were back then if we build a kit like this three-tube receiver. Join me on my discovery journey. I have no clue about what I am doing. But, after the video, we will know more, I am sure. Whether the receiver will work or not. I am a proud Patreon of ‪@greatscottlab‬ , ‪@ElectroBOOM‬ , ‪@ELECTRONOOBS‬ , ‪@EEVblog‬ , and others No Docker, Microsoft Teams, Zoom Links: Three Tube Receivers: https://www.aliexpress.com/item/10050... Example of a variable capacitor: https://s.click.aliexpress.com/e/_d6j... AD9850 Frequency Generator board: https://s.click.aliexpress.com/e/_d85... Tecsun PL-660: https://s.click.aliexpress.com/e/_dZW... Variable Capacitor: http://www.hdic.com.hk/?topclassid=11... HackRF one original: https://amzn.to/34n6SP5 HackRF one Clones: https://s.click.aliexpress.com/e/_d7G... Mr. Carlsons video:    • How A Tube Works   Better diagram: https://drive.google.com/file/d/1J1Gc... (still not a good quality) The links above usually are affiliate links which support the channel (no additional cost for you). Supporting Material and Blog Page: http://www.sensorsiot.org Github: https://www.github.com/sensorsiot My Patreon Page:   / andreasspiess   Discord:   / discord   If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel My Amazon.com shop: https://www.amazon.com/shop/andreassp... For Banggood https://bit.ly/2jAQEf4 For AliExpress: http://bit.ly/2B0yTLL For Amazon.de: http://amzn.to/2r0ZCYI For Amazon UK: http://amzn.to/2mxBaJf For ebay.com: http://ebay.to/2DuYXBp https://www.facebook.com/profile.php?...   / spiessa   https://www.instructables.com/member/... Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job As an Amazon Associate, I earn from qualifying purchases #no#midroll#ads