Vacuum tube radio progress: got decent reception of several medium wave AM stations: BBC radio 5, Radio Caroline and a Dutch one. I learned to stay away from switching power supplies, all I tried were so noisy I couldn't hear anything else. With a linear supply the sound is pleasant, but could still be a bit louder. #radio #diyelectronics #vacuumtube
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Fredrik Jansson
@frepa314@mastodon.online
mastodon 4.8.0-nightly.2026-10-06Enjoying do-it-yourself electronics, pattern formation, and programming. Home-made hardware projects, games and water kefir. Cheese and physics. Amateur radio, call sign OH1HSN. Author of Make: Radio https://www.makershed.com/products/make-radio-print
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Joined October 26, 2020
twitter:
About US research data under threat and how everyone can contribute to saving it - @lavaeolus@fedihum.org and me were interviewed in the TU Delft paper Delta: https://delta.tudelft.nl/en/article/saving-academic-data-is-easier-than-you-think-and-you-can-do-it-too mostly regarding our parts in the Safeguarding Research and Culture initiative at https://safeguar.de
#TUDelft #SafeguardingResearch #SciOp
Six toroids done, 13 to go! I'm building a QMX+ transceiver from QRP Labs. Going well so far, and the soldering got better when I changed to a larger tip on the iron. This PCB seems to conduct heat away from the joint very quickly.
#radio #electronics #qmxplus