Yes. I frequently find I overtax a components max. ratings (the smell of
burnt electronics is an acquired taste, like tobacco smoke and beer
grin)... I tend to pick up large quantities at auctions and surplus
outlets... replacing "sane design methods" with brute force and the
wholesale slaughter of un-counted components...



And, one should use caution with my labeling of components--I have boxes of
silicone diodes which are "similar" to 1n914's--and pounds of mis-valued
resistors/caps (the manufacturers just don't realize the value of a resistor
marked as one-ohm--when the actual value is one meg-ohm!!!)



"Whatever works!" sometimes becomes, "A list of what doesn't work!"



Quite often, the answer lies in "what I haven't tried..."



I don't expect all to be able to appreciate my "methods"... but, it breaks
the monotony of having to be so precise--which my field places upon me...



Warmest regards,

John



"Tam/WB2TT" wrote in message
...
|
| "Cecil Moore" wrote in message
| ...
| John Smith wrote:
| Well, If there is a voltage, there is a current (albeit, at times very
| small)--the opposite is also true, ohms law is standing proof...
|
| Yes, but the amplitude and phase relationship of current to
| voltage can have any possible value and there are an infinite
| number of possibilities. In the equation, Z = V/I, you cannot
| determine Z unless you know BOTH V and I.
|
| Why can't I measure the standing wave ratio as a ratio of power, ...
|
| You need both voltage and current to determine power. Your design
| senses only current.
| --
| 73, Cecil http://www.qsl.net/w5dxp
|
|
| Cecil is right. Also, the 100K implies 200V to get 2ma of LED current. The
| 1N914 won't hack that.
|
| Tam/WB2TT
|
| ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet
| News==----
| http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+
| Newsgroups
| ----= East and West-Coast Server Farms - Total Privacy via Encryption
| =----
|
|

Errr, make that that "silicon diodes", I keep gettin' 'em confused with the
girls! grin

Warmest regards,
John

"John Smith" wrote in message
...
| Yes. I frequently find I overtax a components max. ratings (the smell of
| burnt electronics is an acquired taste, like tobacco smoke and beer
| grin)... I tend to pick up large quantities at auctions and surplus
| outlets... replacing "sane design methods" with brute force and the
| wholesale slaughter of un-counted components...
|
|
|
| And, one should use caution with my labeling of components--I have boxes
of
| silicone diodes which are "similar" to 1n914's--and pounds of mis-valued
| resistors/caps (the manufacturers just don't realize the value of a
resistor
| marked as one-ohm--when the actual value is one meg-ohm!!!)
|
|
|
| "Whatever works!" sometimes becomes, "A list of what doesn't work!"
|
|
|
| Quite often, the answer lies in "what I haven't tried..."
|
|
|
| I don't expect all to be able to appreciate my "methods"... but, it
breaks
| the monotony of having to be so precise--which my field places upon me...
|
|
|
| Warmest regards,
|
| John
|
|
|
| "Tam/WB2TT" wrote in message
| ...
||
|| "Cecil Moore" wrote in message
|| ...
|| John Smith wrote:
|| Well, If there is a voltage, there is a current (albeit, at times very
|| small)--the opposite is also true, ohms law is standing proof...
||
|| Yes, but the amplitude and phase relationship of current to
|| voltage can have any possible value and there are an infinite
|| number of possibilities. In the equation, Z = V/I, you cannot
|| determine Z unless you know BOTH V and I.
||
|| Why can't I measure the standing wave ratio as a ratio of power, ...
||
|| You need both voltage and current to determine power. Your design
|| senses only current.
|| --
|| 73, Cecil http://www.qsl.net/w5dxp
||
||
|| Cecil is right. Also, the 100K implies 200V to get 2ma of LED current.
The
|| 1N914 won't hack that.
||
|| Tam/WB2TT
||
|| ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet
|| News==----
|| http://www.newsfeeds.com The #1 Newsgroup Service in the World!
120,000+
|| Newsgroups
|| ----= East and West-Coast Server Farms - Total Privacy via Encryption
|| =----
||
||
|
|

While there's nothing wrong with this kind of approach when you're
making one of something for your own use, the resulting design isn't
likely to be useful to others because of the slim chance of someone else
being able to make a copy work.

Roy Lewallen, W7EL

John Smith wrote:
Yes. I frequently find I overtax a components max. ratings (the smell of
burnt electronics is an acquired taste, like tobacco smoke and beer
grin)... I tend to pick up large quantities at auctions and surplus
outlets... replacing "sane design methods" with brute force and the
wholesale slaughter of un-counted components...



And, one should use caution with my labeling of components--I have boxes of
silicone diodes which are "similar" to 1n914's--and pounds of mis-valued
resistors/caps (the manufacturers just don't realize the value of a resistor
marked as one-ohm--when the actual value is one meg-ohm!!!)



"Whatever works!" sometimes becomes, "A list of what doesn't work!"



Quite often, the answer lies in "what I haven't tried..."



I don't expect all to be able to appreciate my "methods"... but, it breaks
the monotony of having to be so precise--which my field places upon me...



Warmest regards,

John

Roy:

Yes. that is true... and an excellent point, now the others can't say they
haven't been warned...

Thanks Roy...

Warmest regards,
John

"Roy Lewallen" wrote in message
...
| While there's nothing wrong with this kind of approach when you're
| making one of something for your own use, the resulting design isn't
| likely to be useful to others because of the slim chance of someone else
| being able to make a copy work.
|
| Roy Lewallen, W7EL
|
| John Smith wrote:
| Yes. I frequently find I overtax a components max. ratings (the smell
of
| burnt electronics is an acquired taste, like tobacco smoke and beer
| grin)... I tend to pick up large quantities at auctions and surplus
| outlets... replacing "sane design methods" with brute force and the
| wholesale slaughter of un-counted components...
|
|
|
| And, one should use caution with my labeling of components--I have boxes
of
| silicone diodes which are "similar" to 1n914's--and pounds of mis-valued
| resistors/caps (the manufacturers just don't realize the value of a
resistor
| marked as one-ohm--when the actual value is one meg-ohm!!!)
|
|
|
| "Whatever works!" sometimes becomes, "A list of what doesn't work!"
|
|
|
| Quite often, the answer lies in "what I haven't tried..."
|
|
|
| I don't expect all to be able to appreciate my "methods"... but, it
breaks
| the monotony of having to be so precise--which my field places upon
me...
|
|
|
| Warmest regards,
|
| John

Yes.
Well, take a look at this one, now this one just might deserve a patent....
http://blake.prohosting.com/mailguy2/john_s.jpg

Ya just think it might work--now this WOULD be simple!!! grin

Warmest regards,
John
--
I AM ONE-IN-A-MILLION!!!!!
Too bad the other 999,999 got there first.. frown


"Cecil Moore" wrote in message
...
| John Smith wrote:
| http://blake.prohosting.com/mailguy2/swr1.jpg
| http://blake.prohosting.com/mailguy2/swr2.jpg
|
| This should prove as "proof of concept" that an "indicator" using such a
| toroid should darn well work! ... at the very least--in the fashion I
am
| attempting...
|
| If you will notice, your earlier versions did not sample
| the voltage. These designs sample the voltage through C1
| and C2. The current is sampled by T1. The voltages are
| phasor-added to the current to obtain signals proportional
| to forward power and reflected power. Those voltage sampling
| caps are what were missing from your earlier designs.
| --
| 73, Cecil, http://www.qsl.net/w5dxp
|
| ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet
News==----
| http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+
Newsgroups
| ----= East and West-Coast Server Farms - Total Privacy via Encryption
=----

John Smith wrote:
Well, take a look at this one, now this one just might deserve a patent....
http://blake.prohosting.com/mailguy2/john_s.jpg

Something like might work at a preset QRP level if you
can get enough turns on the toroid. What is the reverse
voltage rating on the LEDs? How about connecting coax
ground and logic ground on the schematic so Kirchhoff
will be happy?
--
73, Cecil http://www.qsl.net/w5dxp


----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
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---= East/West-Coast Server Farms - Total Privacy via Encryption =---

Cecil:

That is a "simplified drawing", no provision there is shown to "protect the
LEDs", especially from too high a reverse voltage--doesn't that just make
you think, "I know how to do that! grin"

Where is your "experimenters curriosity", haven't I given you enough to make
ya wanna build one?!!!

If you need a few parts, I got 'em... LOL!!!

Where is that "ham spirit", is this why there are so few hams here, and only
about ~20% of them join the "ARRL Church?", ahhh, I tell ya', faith in "God"
is dwindling... grin

Warmest regards,
John
--
I AM ONE-IN-A-MILLION!!!!!
Too bad the other 999,999 got there first.. frown

"Cecil Moore" wrote in message
...
| John Smith wrote:
| Well, take a look at this one, now this one just might deserve a
patent....
| http://blake.prohosting.com/mailguy2/john_s.jpg
|
| Something like might work at a preset QRP level if you
| can get enough turns on the toroid. What is the reverse
| voltage rating on the LEDs? How about connecting coax
| ground and logic ground on the schematic so Kirchhoff
| will be happy?
| --
| 73, Cecil http://www.qsl.net/w5dxp
|
|
| ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet
News==----
| http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000
Newsgroups
| ---= East/West-Coast Server Farms - Total Privacy via Encryption =---

I can't help but notice, humbly...

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...

However, when it was pointed out to Edison, his large amount of "failures"
before success... he said something to the effect that he had not had
"failures" but had leaned--2,000 ways NOT to make a light bulb...

Mindset is important, one frequently finds what one sets out to find (or
accomplish)... I was just looking for one way which works--sounded simple,
at first...

John
--
I AM ONE-IN-A-MILLION!!!!!
Too bad the other 999,999 got there first.. frown

"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
|
|

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

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