One thing I forgot to mention: In Olivier F5LVG's DC receiver article back in SPRAT 100, he casually mentioned building a transformer for his mixer by taking two inductors of the appropriate values and GLUING THEM TOGETHER. What a great idea! I had to try it. I did. Picture above. It worked in my Ceramic DC receiver, but the trifilar transformer from Farhan in India worked better. Perhaps the coupling was tighter. But hey, it worked. Three cheers for Olivier.
Re: Fair Radio and Dayton Hamfest Photos May 2024
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Thanks—excellent pictures. I see many items that probably would have
followed me home, for better or worse.
#4828 and #4829: Nice old homebrew, with turns...
9 hours ago