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@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The BC-610 coils were all originally made by B&W and were their design.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@w-ent.com>
Date: 2/20/26 09:31 (GMT-08:00)
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
______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html