Re: [Amps] old style armored wire ?

[Roger D Johnson <n1rj@adelphia.net>]

chris@yipyap.com wrote:
> Hi,  It's me again, the guy with the 1 KW AM transmitter.
>
> Today's question:
>
> All of the interconnect cables on this thing are made of a
> cable that I've never seen before. Not too surprising
> since it was probably built before I was born.
>
> The cable is solid copper
> center conductor surrounded by a dielectric made of an
> impregnated wrapped paper type stuff, then there is
> a layer of a fabric type stuff.  On the outside is
> a solid metal shield, not articulated like aluminum
> armor cable, but solid metal.   The total size is
> somewhere between 1/4 and 3/8 inches in diameter.
>
> Wild stuff.  If I bend it too much the outside shield
> cracks.  Is it lead?  Aluminum?
>
> Chris
>
> kc0atc
>
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I've seen some old shipboard transmitters with lead covered wire.
Lead is much softer than aluminum so you should be able to tell
by pressing a knife blade into it. It will score the lead easily
but not Al.

73, Roger


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