[GreenKeys] telephone ground

[Steve Schlink]

Jack,

Actually no external part of the phone was grounded. The ground was there 
for party line ringing.

Steve

At 05:23 PM 2/14/2003 -0500 Jack  wrote:


>Those of us who played with crystal radios when we were kids remember that
>the best
>"antenna" was the fingerwheel stop on the old telephone. That curved metal
>piece was usually
>grounded through the telephone cord and it acted as a pretty good conductor.
>They
>no longer exist thanks to the advent of "Touchtone"!
>
>Anything metallic will make a good antenna...matching the metal's impedance
>at the
>desired receiving frequency to that of the receiver can be done with a
>simple
>antenna tuner/matching network. Tune for maximum noise.
>
>Jack WA2HWJ
>
>NNNN
>
>
>
>
>
>
>
>_______________________________________________
>GreenKeys mailing list
>GreenKeys@mailman.qth.net
>http://mailman.qth.net/mailman/listinfo/greenkeys


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