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Re: Permanent magnet Tesla coil
- To: tesla@xxxxxxxxxx
- Subject: Re: Permanent magnet Tesla coil
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Mon, 22 Aug 2005 17:41:26 -0600
- Delivered-to: testla@pupman.com
- Delivered-to: tesla@pupman.com
- Old-return-path: <vardin@twfpowerelectronics.com>
- Resent-date: Mon, 22 Aug 2005 17:42:44 -0600 (MDT)
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Original poster: Ed Phillips <evp@xxxxxxxxxxx>
"Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>
I was talking about an alexanderson alternator. It was used to put
out 17-100 khz voltage before tubes were around (around 1910 irrc,
lost the link).
Mike"
Around long into the tube era. I believe one in Hawaii was in use by
the U.S. Navy until at least the end of WW2. As I think I mentioned
here earlier, there's still one preserved in Sweden at station SAQ and
it sends signals on special occasions.
Ed