"Richard Clark" wrote in message
...
On Mon, 31 May 2010 15:20:03 -0700, "rb" wrote:

Memory has usual cob webs. Help clear it.......

When I feed twinlead, seems I might use a small fluorescent bulb to show
how
it's doing.

Hi OM,

What you call fluorescent, I assume, must mean a small NE2 neon
indicator bulb which would be suitable to what you describe.

If a small fluorescent bulb will do this, do I just tune for
"max smoke" while holding it near the twinlead? Can't recall if a small
flourescent bulb will do this or not.

It is going to be an indication of "something."


If radiation is cancelled, not sure how it would fire.

Within close proximity (about 3 to 5 times the wire separation), you
still have a sense of each wire. Further away, there is so little
difference in distance to either of them, that they both add with
cancellation.

I vaguely remember we used to use twin lamps, wired backwards for this
purpose. One way you had SWR on one side; the other way you had SWR on
the other side. Neither light being lit meant good SWR.

This must be the cobwebs you speak of. Other than LEDs (and I think
you would have specifically said so if your indicators were these),
lamps have no sense of current direction. Example, what would happen
if you reversed the plug to your table lamp? Would it suck light?
Have you ever put in a fluorescent bulb with the wrong polarity?

73's
Richard Clark, KB7QHC
-
The LEDs that suck light are normally referred to as DEDs (Dark Emitting
Diodes)