Doesn't look as if everyone like Bruenes' views...
http://www.w2du.com/BrueneRebuttal.pdf

Warmest regards,
John

"Roy Lewallen" wrote in message
...
| That technique was used by every SWR meter I ever looked inside of. I
| assume the Bruene circuit is used more often now, but I'll bet a lot of
| cheap SWR meters still use that technique.
|
| Roy Lewallen, W7EL
|
| Bob Nielsen wrote:
| On Thu, 05 May 2005 14:01:05 -0500, Cecil Moore wrote:
|
| I vaguely remember building a coaxial "slotted" line without
| the slot when I was in college. We took a piece of coax,
| stripped off about a foot or so of outside insulation, and
| ran an insulated wire under the braid. We tied one end to
| ground through a R=Z0 resistor and ran the other end
| to a 1N34 rectifier. Anybody remember running a wire
| under the braid to achieve an inductive pickup for
| forward and reflected power?
|
|
| That's really a directional coupler, not a slotted line (but you
| already knew that). I vaguely recall seeing it in QST or a Handbook
| back in the 1950s.
|
| Bob, N7XY