Re: Denco coils substitute
If you want plug-in coils, an alternative is Eddystone (and equivalents) octal-based formers, and ready-wound coils. There are a few on eBay and they aren't too expensive. You can often pick them up for peanuts at radio meetings.
They are much chunkier than Dencos, so easier to handle and to solder to.
The coils are air-cored.
Best regards ... Stef
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