[Antennas] Tesla antenna?

[Norman Hockler]

Wrong on DC in Manhattan.  It was still there in the early 50's in the area 
around 57th street.
And the subways still run on DC.

Norman N8NH


At 07:19 AM 2/8/03 -0600, you wrote:
>At 06:59 AM 2/8/2003 -0500, Haines Brown wrote:
>
>***Snip***
>
>>I grew up in Manhattan, which still ran on DC thanks to Edison. When
>>TV came in, we had to get an alternator to convert the DC to AC. I
>>don't recall when Manhattan went over to AC, but my vague sense is
>>that it was around the end of WWII. Anyone know for sure?
>
>I hope you meant this a tongue and cheek...It was about 1922 when the
>last of the DC came out of NYC for general use...There was some DC still 
>being used
>in the city up to WW2 on the trolly system.
>
>>When I was a young, a friend and I built a hugh tesla coil using one
>>of those cardboard tubes for storing rugs around which to turn the
>>secondary, an old x-ray transformer, and a heavy copper tubing primary
>>that we tried to make watercooled (can't remember if we succeeded). We
>>tested it by creating big arcs and calling up someone in another town
>>to see they could hear our signal. The towns were Windsor and West
>>Hartford Connecticut. Although we perhaps deserve credit for inventing
>>broad band communications, it was a good thing the FCC was not much on
>>the ball in those days, or we would have gotten into real trouble!
>
>In 1950-51 there was a large Tesla coil built at Oswego State Teachers 
>College in the
>electrical department of the school of Industrial Arts, by myself and the 
>only other
>ham who was the instructor in the department.  Once built we would throw 
>baseball sized
>balls at each other from the corona developed at the ends of the 
>coil.  The coil
>primary was generated using a rotary spark gap to increase the frequency 
>of the voltage.
>Was great fun but you sure ached all over when done as it felt like you 
>had been
>hit by softballs.
>
>
>Bob Wilder, AF2HD/AFA2HD
>6032 Idlemoore Court
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