[Milsurplus] BC-610 Coils

[Ken Kinderman]

Interesting about the B&W coils: I had a 1952 GRC-26A shelter for many
years. Almost everything was in it when I got from Fair in 2001. (Missing:
the typewriter, the date stamp, and the clock). The plastic spacers on the
BC-610 coils all turned to dust,  including coils new-in-sealed boxes…
shake the boxes and you could hear the residue like salt in a shaker.

I have Millen coils that have survived these 70 years now.

Never tried it, but I guess you can build a small jig and use polystyrene
strips to wind new coils.


On Fri, Feb 20, 2026 at 1:49 PM kgordon2006 <kgordon2006 at frontier.com>
wrote:

> TVL says B&W series for home builders. Not specific to any particular rig.
>
> B&W built antenna couplers for the BC-610 series.
>
> The BC-610 coils were all originally made by B&W and were their design.
> Other manufacturers later made those to spec for the military.
>
> Ken W7EKB
>
>
>
> Sent via the Samsung Galaxy S21 5G, an AT&T 5G smartphone
>
>
> -------- Original message --------
> From: Don Woodward <dbwoodw at w-ent.com>
> Date: 2/20/26 09:31 (GMT-08:00)
> To: milsurplus at mailman.qth.net
> Subject: [Milsurplus] BC-610 Coils
>
>
> I bought some coils for my BC-610 and these were with them - does anybody
> know what transmitter they are used with?
>
>
> 73
>
> Don W.
> KD4APP
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