View Single Post
  #90   Report Post  
Old May 8th 05, 11:37 PM
John Smith
 
Posts: n/a
Default

Richard:

That idea was inspired by Cecil, his input has been VERY beneficial to me,
please don't condem him to stoning to death along side of me... grin

I cite his "Twin Lamp SWR Indicator" as the evil offering which cemented my
designs... (is there any chance you could stand him for the stoning and, let
me go? grin)

The caps are an attempt to limit "peak reverse spikes" (especially across
the fets drain-to-source) but, only if they (the spikes) are any more than a
figment of my imagination (besides, at this point we only wish DC and rf
dumped to ground is a "good thing")... at the most--they do little harm...

I threw the second fet in because I felt guilty about having too few
parts!!! innocent-look-with-fingers-tightly-crossed-behind-the-back

Like most projects of mine--this one is not viewed as completed... I still
have to "build" that one!

Warmest regards,
John
--
When Viagra fails to work--you are DOOMED!!!

"Richard Clark" wrote in message
...
| On Sun, 8 May 2005 08:07:01 -0700, "John Smith"
| wrote:
| I seem to get A LOT more responses which point out what does not work,
and
| not what WILL work... and, while that IS a help... not quite what one
most
| desires on his trek though life...
|
| Hi Brett,
|
| Well, it is difficult to compliment one for losing the race. In the
| Navy we had a saying about "attaboys." It took 1000 of them to get a
| "job well done" and one "aw****" to erase all the attaboys you had.
|
| Now for the attaboy, it's nice to see that you have finally divorced
| the extra diodes.
|
| Another attaboy, it's nice to see that you divorced the common cathode
| path.
|
| So enough patronizing and back to reality.
|
| What are the capacitors for? If R is too large, then they will shut
| off the diodes (this is called a clamp circuit for very good reason).
| If the R is too small, you won't see the flicker anyway.
|
| What are the extra resistors/constant current devices for? The
| constant current device bridged by a smaller resistor (I must presume
| they are the standard 50 Ohmers) is self defeating.
|
| And what is with the connection between the inner line, coil middle,
| and common for?
|
| I note you reserve the rights, to what? a self extinguishing Power
| indicator?
|
| Yeah, you guessed it: aw**** at least once if not three times (poor
| form when they outnumber the attaboys).
|
| 73's
| Richard Clark, KB7QHC