Here are some pics of the prototype I "junkboxed" together--sorry the
quality is so bad...
http://blake.prohosting.com/mailguy2/
or:
http://blake.prohosting.com/mailguy2/index.html
click on the thumbnails for larger pic(s).

The toroid has the winding grounded at center, there are 20 turns total--10
turns per side (way too many!!! I would suggest somewhere between 1-5 turns
for 10 watts or greater!!!)

And, for Richard, BOTH leds share a common current source through the FET...

Later, when I have time, will sketch the schematic and post it here...

PARTS LIST:
1) One aluminum panel to mount SO-239s'
2) Two SO-239's
3) Two hyper-brite LEDs (I would suggest LESS efficient leds--unless for
QRP--these were just handy)
4) One 1K resistor
5) One MPF-102 Fet
6) Hookup wire

If this isn't the most parts-efficient swr indicator in existance, one which
is suitable for QRP thru QRO--then I'll eat this post!!! (well, granted,
Cecils' "Two Lamp SWR Indicator" beats it--but then, this works on coax!!!)

Build one! It works!!!

Anyone know a QRP newsgroup where I can share this design with?

Warmest regards,
John


--
When Viagra fails to work--you are DOOMED!!!

"John Smith" wrote in message
...
| This is a SWR bridge I built using leds and a homemade "directional
| coupler."
|
| ALL critiques on it, and ideas for improvements are welcomed!!!
|
| Please excuse my rough drawing, I am NOT a draftsperson!
|
| Hopefully, the attachment of the .jpg was successful....
|
| Warmest regards,
| John
|
|