Reg Edwards wrote:
The problem lies mainly in the imagination. What measurable harm can befall
you?

Well, I can certainly imagine being zapped by high RF voltages!

Of course, that's not the real subject of this thread, but it's
certainly a reasonable practical consideration.

I wonder, if there's a solid material, suitable for construction of an
enclosure, whose electrical properties are more similar to that of air
than those of metal or wood?
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

Reg Edwards wrote:
The problem lies mainly in the imagination. What measurable harm can
befall
you?

Well, I can certainly imagine being zapped by high RF voltages!

Of course, that's not the real subject of this thread, but it's
certainly a reasonable practical consideration.

I wonder, if there's a solid material, suitable for construction of an
enclosure, whose electrical properties are more similar to that of air
than those of metal or wood?
--
Doug Smith W9WI
========================

If you insist on an enclosure, next to wind, why not try glass?

Then you can view the roller and capacitor settings without the
inconvenience of taking all the screws out of the cover. It's also easy to
show a next door neighbour the works, calm him down, just after you've
cleared his TVI.

There's only roughly 1000 volts, its RF not DC, around a 1 KW tuner. Fairly
harmless stuff. You can't call yourself a real ham unless you've ever had to
quickly remove the tip of your forefinger from a hot spot.

But don't make a habit of kissing capacitor vanes, attractive as they are,
because they look beautiful in motion!
----
Reg, G4FGQ

Reg Edwards wrote:
There's only roughly 1000 volts, its RF not DC, around a 1 KW tuner. Fairly
harmless stuff. You can't call yourself a real ham unless you've ever had to
quickly remove the tip of your forefinger from a hot spot.

Having got a thumb on 400 volts RF... let me assure you, I'm prepared
to sacrifice some efficiency to prevent it from happening again!
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

ISTR someone called, "R.F.Burns" advertising gear in Bad Con.

"Reg Edwards" wrote in message
...
There's only roughly 1000 volts, its RF not DC, around a 1 KW tuner.
Fairly
harmless stuff. You can't call yourself a real ham unless you've ever had
to
quickly remove the tip of your forefinger from a hot spot.

In article ,
Doug Smith W9WI wrote:

I wonder, if there's a solid material, suitable for construction of an
enclosure, whose electrical properties are more similar to that of air
than those of metal or wood?

If you guys would look at what the BIG Boys use to enclose the commercial
ATU's you would fnd that they are all in Hoffman Boxs, made out of
plastic, fiberglass, and epoxy. These work extremely well, for the
intended purpose.


Me

--
Bruce (semiretired powderman & exFCC Field Inspector for Southeastern Alaska)
add a 2 before @
Bruce Gordon * Debora Gordon R.N. Bruce's Trading Post
P.O. Box EXI Excursion Inlet South
Juneau, Alaska 99850 Excursion Inlet, Alaska 99850
www.btpost.net www.99850.net