Re: frequency drift?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Larry,

I am sure the frequency drift was do to the cap going away.

Here is a thought...

Although a Tesla coil would need a very long antenna to really transmit
well, The AC line wiring could easily provide that antenna if the RF were
getting back into it.  Poor grounding and no line filtering may allow that
to happen fairly easily.  You may want to be sure your grounding is really
good and use a line filter.  I think that would greatly reduse the signal
you saw which seems prety high to me.

Cheers,

	Terry


At 04:30 AM 8/2/2002 +0000, you wrote:
>I was curious how far my TC was 'transmitting' around the neighborhood...  
>so i took my radio outside (it has a scale from 120khz-500khz) and walked 
>around the block.
>
>found the peak frequency and walked around.  about a block radius or so.  it 
>never completely dropped off, but at around 1/2block, it dropped off by 
>about half of the signal strength.
>
>what was odd was that the frequency seemed to drift higher by up to 30khz.  
>perhaps it had something to do with the fact that the cap
>was failing.  i ran it at full power for 2 more minutes after that,
>and it died.  took the cover off the cap tank, and lotsa smoke. :(
>2 more in tank left. 2 are blown.  hopefully the remaining 2 will hold out 
>till the mmc caps come in.  i have to siphon some of the mineral spirits out 
>to get at the cap wiring to add the 2 i disabled a week ago.  i can't wait 
>to take them apart and see the burn marks! ;)
>
>larry d.
>
>_