[ARC5] Seeking Extinct Wire

[Brooke]

Hi:

Please keep this discussion in public.
Are there any known patents?

-- 
Have Fun,

Brooke Clarke
https://www.PRC68.com
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.

-------- Original Message --------
>
> Dave – I do not know if most on here are interested, so, I’ll reply direct after I get some breakfast. 73 – Mike
>
> Mike B. Feher, N4FS
>
> 89 Arnold Blvd.
>
> Howell NJ 07731
>
> 908-902-3831
>
> *From:*arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> *On Behalf Of *David Stinson
> *Sent:* Friday, May 30, 2025 10:16 AM
> *To:* Mike Feher <n4fs at eozinc.com>; 'ARC-5 List' <arc5 at mailman.qth.net>
> *Subject:* Re: [ARC5] Seeking Extinct Wire
>
> Thanks for this valuable info, Mike.
> I note from the photo that the iron wires of the band
> appear to be twisted together into a cable configuration?
> I had read that the wires were not wrapped around
> each other, as the twist would caused the EM field in
> individual wires to phase-cancel (like a twisted pair)<
> but rather layered to act like transformer laminations
> (thus the insulation)  Have you tried yours for function?
>
> The one I have is a home-brew which came with
> steel wires that were twisted together
> into a cable and painted with some kind of
> gray paint.  The coils and magnets are good,
> as are the lo-Z headphones, but the unit
> has no output, unless one stuffs volts of RF
> into it, so that what one hears is just
> non-linear high-level leakage.
> The only thing I can see which looks "off"
> is the wires.  This one is a "demonstrator"
> which has a hand crank on the side.
> I mean to install a proper
> clockwork, but not until it is functional.
>
> I had this crazy idea of trying to extrapolate
> the real, practical sensitivity of the "Maggie"
> used on the RMS Titanic, because I had
> some doubts about some of the claims
> made for receiving the ship's distress
> calls far inland, or even at modest
> coastal stations.
>
> But then I found the ship antenna technical
> specifications: a center-fed
> Marconi "T" 160 feet tall, with four "top hat"
> capacitive-loading horizontal wires 400 feet
> long, the other capacitor plate
> (ground plane) a zillion tons of steel
> floating in thousands of miles of salt-water.
>
> So... OK.  You probably could have heard
> them had McBride sparked a 12-volt battery
> across the antenna.
> But I still want to get this "Maggie" to work.
>
> TNX OM ES 73 DE Dave AB5S
>
> On 5/30/2025 7:31 AM, Mike Feher wrote:
>
>     Dave – I believe the originals were spot welded.
>
>
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