If you’ve ever used an NE602 or similar IC to build a radio, you might have noticed that the datasheet has a “gilbert cell” mixer. What is that? [Electronics for the Inquisitive Experimenter] explains ...
Heye, DJ9RR will be active as 8R1/AG6UT from Guyana in CQ WW DX CW Contest, 29 - 30 November 2025.
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