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Re: Polyethylene


I look forward to seeing those.
Barry

 ----------
|From: "tesla-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|To: Benson Barry; "Tesla-list-subscribers-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|Subject: Re: Polyethylene
|Date: Sunday, November 17, 1996 4:34PM
|
|<<File Attachment: 00000000.TXT>>
|From MALCOLM-at-directorate.wnp.ac.nzSun Nov 17 14:23:43 1996
|Date: Mon, 18 Nov 1996 08:51:20 +1200
|From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
|To: tesla-at-pupman-dot-com
|Subject: Re: Polyethylene
|
|Ed,
|     This sounded rather attractive initially...
|
|> How about using the foam that comes in spray cans that is used for
|> filling in around doors and windows?   It expands like crazy and is
|> quite stiff when it cures.  I don't know what it is made of
|> however.
|
|The problem would be that there are pockets of trapped gas that could
|ionize. The wax/poly mix sounds like a good one so I'll try that
|(before stuffing it in the probe. BTW, it passed initial tests on
|the weekend. I should be in a position to scope the primary before
|long.
|
|     Also, I've taken some more photos off the scope but this time
|with a real coil and gap. The pictures showing the effects of
|progressively loading the secondary should be of interest. This was
|done sparkwise with the discharge rod being moved closer for each
|photo. I ran out of film before finishing :( so have more to take. I
|will send them to Jim for ftp inclusion when done. The waveforms ass-
|ociated with tuning the primary from above Fr to below are also
|included (most interesting). You can actually see how the beat
|frequencies vary in amplitude in the time domain.
|     There is a photo of the long linear primary decrement I captured
|a month or two back and had waiting in the scope for the camera.
|     Including braid clearly shows up in primary Q measurements. And
|raising the primary coil off the ground boosts Q markedly.
|     One thing that showed up clearly was how well the primary
|couples to other objects in the vicinity. I was amazed to discover
|that the CP gaps gave little better Q than my dry poly caps in the
|rather confined metal garage. Not only that, but I clearly saw an
|energy interchange between my new unearthed resonator and the primary
|system with the resonator sitting *8 FEET* away!! I had to cart it
|into the house so I could get meaningful primary readings and even
|then, there were artifacts of some smaller resonators that were lying
|around in some of the oscillograms.
|
|Malcolm
|