I've seen Roger's coils in action. The one without a top load is a very old coil probably built at a time when top loads were thought to not be needed. He didn't build it. Indeed it does work however the top windings emit a lot of corona and small streamers as would be expected with no top load. The top windings will eventually be damaged without a top load to shield the top of the secondary windings.
Steve White
Cedar Rapids, Iowa
----- Original Message -----
From: hooverrl@xxxxxxxxxxxxxx
To: tesla@xxxxxxxxxx
Cc: "Dick Hoover (Email)" <hooverrl@xxxxxxxxxxxxxx>
Sent: Monday, February 15, 2021 5:39:04 PM
Subject: Re: [TCML] Tesla Digest, Vol 158, Issue 1
-----Original Message-----
From: hooverrl@xxxxxxxxxxxxxx [mailto:hooverrl@xxxxxxxxxxxxxx]
Sent: Monday, February 15, 2021 5:18 PM
To: tesla@xxxxxxxxxx
Cc: Dick Hoover (Email)
Subject: RE: Tesla Digest, Vol 158, Issue 1
Top load position?
This is a question for Roger Smith in Ohio. He is currently running two
large coils. One has a 4-ft toroid on the top. The other has "NO" toroid on
the top, only a vertical 1/2" rod. Both work great.
Dick
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