Re: Polyvaricon Source Wanted
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I bought four from this source: https://www.ebay.com/itm/Dual-Gang-AM-FM-Variable-Capacitor-266pF-X-2-and-20pF-X-2-500pF-Total/113059337104
They're your typical AM/FM radio devices. I found a small transmitting loop on Thingiverse that uses them, so I bought some. I printed up the enclosure and planetary gearing for it, but haven't had the time to fiddle with it and build the darned loop. That'll probably be a winter project.