Marriage is under fire!!

[Si Ballenger]

On Sun, 19 Sep 2004 10:49:57 -0700, Eric R Snow
<etpm@whidbey.com> wrote:

The camera is small. The casing with batteries and LED lights is the
big part.

I've only pulled a couple of well pumps, but I wouldn't be
putting all that stuff down the well casing. You are just asking
for trouble. Go to google search to see what the well inspectors
use. An IR bullet cam on the end of cheap cat5 cable will be
plenty strong enough to support the cam and pull back out if it
gets in a bind. Below is a cam you might want to look into. YMMV!

http://www.supercircuits.com/store/prodinfo.asp?number=PC136UW1&variation=&aitem=7&mitem=11

 

[CFoley1064]

Subject: Automatic voltage scaling with op-amp?
From: fozztexx@fozztexx.com (Chris Osborn)
Date: 9/19/2004 2:36 PM Central Daylight Time
Message-id: <Mcl3d.22990$qO5.13386@newssvr29.news.prodigy.com


I recently got a grab bag of parts from an electronics supplier. I was
going through the chips I got and I'm wondering if any of them might
be of any use in making a circuit that can automatically scale a 15khz
video signal from 0V-n (never more than 3V) to the 0V-0.7V that a
normal RGB monitor uses.

I think I have a whole bunch of LM311 op-amps. I found a circuit on
the net that shows how to use an op-amp as a peak detector. I thought
I could use the peak detector as some sort of input for the maximum of
the input video signal, and then somehow use 0.7 as the maximum of the
output, and then an op-amp could scale it. Obviously I'll have to
build 3 such circuits, one each for red, green, and blue.

But... I have no idea how to do it. I can't find any schematics on the
net which do anything similar.

The LM311 is a comparator, not an op amp. It switches between logic 1 and
logic 0 depending on the inputs.

Good luck
Chris

 

[Steve Leyland]

: On Sat, 18 Sep 2004 12:31:40 -0400, Me
: <no-address_for_spammers@no-address.com>,wrote:
:
:: On Sat, 18 Sep 2004 12:07:02 -0400, "Meat-->Plow"
:: <Meat@petitmorte.net> wrote:
::
::: On Sat, 18 Sep 2004 10:57:11 -0400, Me
::: <no-address_for_spammers@no-address.com>,wrote:
:::
:::: On 18 Sep 2004 07:41:24 -0700, nina.p20@gmail.com (Nina) wrote:
::::
::::: I'd like to clarify something that I've missed:
::::: I'm ready to pay for your help if needed.
::::: TIA
::::: Nina
::::: nina.p20@gmail.com
::::
:::: I see no reason to try and jam the entire band. Just put together a
:::: simple FM transmitter and as someone earlier suggested, transmit a
:::: squeal or something equally irritating over whatever station
:::: they're listening to. As M->P suggested, that will be far easier
:::: to accomplish technically. If you need schematics for a simple FM
:::: transmitter that's very easy to build, yet very effective I can
:::: help you there. I've built and used several on this design. In
:::: fact, there's a drag strip in GA using a transmitter I built off
:::: of this schematic using it to transmit race stats so people can
:::: listen in their cars and with head sets so they can hear over the
:::: loud car exhaust. Also got the board foil design and component
:::: layout making it super simple to build if you want to go the
:::: professional route.
:::
::: I thought the person already had a transmitter
::
:: Oops... didn't read all the way down, now did I.
:
: The person said the PO was 5 watts. That sounds like a home
: brew unit. I used to own a 50 watt exciter. It was
: responsible for generating the FM frequency, modulating it,
: and amplifying it to 50 watts where it was originally
: designed to feed a 5000 watt commercial transmitter. It made
: a pretty decent little pirate radio station. I built a
: J-pole antenna out of some wire and PVC tubing and I got
: about a 5 mile radius with full quieting. Called the station
: WEED, muhahwahahahah.

woah, now there's a coinkidence!
http://www.weedfm.tk
is a 70 watt pirate here I'm allegedly helping out with...

--
Steve Leyland
mhm32x16 Smeeter#24 WSD#41
flower: three 6 four 9 five 8 eight 9
Alcatroll Labs Inc (bongwater maintenance dept)
http://www.insurgent.org/~alcatroll/
http://www.weedfm.tk

=^MEOW MEOW ARMY^=

A pessimist counting his blessings: 10 ... 9 ... 8 ... 7 ...
======================================================================
"Warning to all:
Steve Leyland is a trolling twat of the highest order. Killfile the
muppet now and move on. Even the briefest of searches on his past
UseNet posts will reveal the truth. You have been warned. *plonk*"

bear, uk.rec.motorcycles
======================================================================
"This sig is an abomination of all that is good and right about usenet.
Do the entire world a favor and REMOVE YOURSELF FROM USENET ALTOGETHER,
DUMBASS."

miguel, soc.singles
======================================================================
"must you include your 75847548574893579345 gigabyte sig file in every
fucking post? You're very annoying."

projectile vomit chick, alt.music.ozzy
======================================================================
"I went to the Garden of Love,
And saw what I never had seen;
A Chapel was built in the midst,
Where I used to play on the green.

And the gates of this Chapel were shut
And "Thou shalt not," writ over the door;
So I turned to the Garden of Love
That so many sweet flowers bore.

And I saw it was filled with graves,
And tombstones where flowers should be;
And priests in black gowns were walking their rounds,
And binding with briars my joys and desires."

William Blake.
======================================================================
"When the Earth has been ravaged and the animals are dying, a tribe of
people from all races, creeds and colours shall put their faith in
deeds, not words, and make the land green again. They shall be known as
Warriors of the Rainbow, protectors of the environment."

Native American prophecy


|\ _.-'~~""'~`'~)
/, ~-,__,,,.'~ ,-;;--''
|,4) ./ ' ; ;/'
'-~~;'@ ( ; ;
_.--'' _.-_..' .;.'
(,_..----''' (,..--''

Meow

 

[Clarence]

"Nina" <nina.p20@gmail.com> wrote in message
news:992361df.0409191854.6d4c1d9f@posting.google.com...

Well...
Thanx all who tried to help me in any way
The whole "story" is:
The main problem is the guy I'm dealing with...He is a mentally ill
guy, that has been freed from a madhouse about 3 month ago. He lives
in his 14 room yard (yes, he sleeps there too) and has conflicts with
all authorities, including police. He's arrested from time to time for
violence against his wife or children or neighbours, but released
after a few hours, as he is - as I said - insane, and the authorities
are powerless against him. He is really ill, but not stupid. He lowers
the volume between 14:00-16:00 and from 00:00 up to 06:00. Lower, not
closing...
Our windows are about 10m from his yeard, so you can imagine...
I've considered all the suggestions some of the members gave, as
others have said, jamming his radio could get me into serious
troubles, and changed my "jammer" with a 50-100mW module...It has
about the same effect.

SO, you thing your okay?

 

[filesiteguy]

On 19 Sep 2004 19:54:48 -0700, nina.p20@gmail.com (Nina) graced us
with:

Well...
Thanx all who tried to help me in any way
The whole "story" is:
The main problem is the guy I'm dealing with...He is a mentally ill
guy, that has been freed from a madhouse about 3 month ago. He lives
in his 14 room yard (yes, he sleeps there too) and has conflicts with

So, it is very simple. Figure out what station he's listening to,
setup a transmitter on that same frequency (this isn't hard), adjust
the power, so it goes for at least 100M, and broadcast intermittent
messages.

Tell him things like, "you need to go to sleeeeep...." Or maybe,
"they're coming! quick, shutoff the radio!"

HTH

--
k

 

[John Woodgate]

I read in sci.electronics.design that Nina <nina.p20@gmail.com> wrote
(in <992361df.0409200429.60887730@posting.google.com&gt about 'NEED:
Schematics for building a broad band frequency jammer (FM 88M-108M)',
on Mon, 20 Sep 2004:

I feel like I'm dealing with
"alt.saints.xxx)

It's more like rec.saintsandsinnersandverylittleelectronics!
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

 

[Chris Osborn]

In article <acb22b57.0409192052.ad02658@posting.google.com>,
Glenn Gundlach <stratus46@yahoo.com> wrote:

I'm afraid your LM311s are not opamps but voltage comparators. You can
see the datasheet here
http://www.fairchildsemi.com/ds/LM/LM311.pdf

Not exactly sure what the difference is. I think one of these other
chips might be an op-amp, it's an LM324.

Personally, I just fix the problem with the video since widely
varying levels implies faulty transmission lines/terminations which
will muck it up anyway. Fixing reflections from faulty cables
automatically is possible but way beyond simple opamps. GG

It isn't a problem with the video really. I'm hooking up arcade PCBs
to an old RGB monitor which is able to sync down to the 15khz. Some of
the boards I have output up to 3V, some output less than 0.5V. They
all work great hooked up to the monitor that is in their dedicated
cabinet. I just wanted something that could automatically adjust the
levels while it's on my test bench.

I guess what I was hoping for was a schematic that showed how to have
a input voltage, a reference to the input's max, and a reference to
the output's max, and it would do the scaling. Can that be made with
an LM324?

--
See all the insanity of giant K'nex kinetic sculptures
Pictures, movies, and more! http://buildfest.com/
Coming soon: An arcade cabinet made of K'nex!

 

[AntronX]

Here some options I would recommend:
1: Find an old grandpa with a HAM radio setup and old high power HF
amplifier. Pull a wire across your yard (dipole) and hook it up to the
antenna tuner and the amp. Then let the old man ragchew with his buddies on
the air while he is overdriving the hell out the amp. This will produce
very high rf and interference, will get picked up in this stereo speaker
wires and will make the loudest noize possible. The best part this is LEGAL
and it will jam his radio alltogether making it unusable even listening to a
CD... If someone shows up complaining about the interference, you say
that we got the amateur radio licence (that's why you need the grandpa) and
thell them to get the hell out!!! Then there is nothing that FCC can do
either...

2: Wait till he turns the volume the loudest and take your transmitter and
feed it with very high level of 30-60 Hz sine wave. This will blow his
speakers out, leaving him with no stereo to listen to... : ) : ) : )

PS: Don't take the blames of these fuckin "legal" people to personal. Just
think that they have no life...

Have Fun!!!
AntronX

 

[Squinch]

"Nina" <nina.p20@gmail.com> wrote in message
news:992361df.0409181121.547277d3@posting.google.com...

OK guys,
Thanx meantime for your responses.
Not getting much help...
I know it's illegal, I know it's dangerous, and I know that I can build a
huge wall between our houses....
But, I'm still interested to build this device, for reasons that I cannot
mention here...
If anyone wants to help me, please do, but I don't like conferences about
my
skills, or legal advices etc.
TIA to anyone who actually tries to help
NINA

nina.p20@gmail.com (Nina) wrote in message
news:<992361df.0409180355.582965c7@posting.google.com>...
I would like to build a broad band frequency jammer for the FM
broadcast band. I have neighbors that like to play that damn music too
loud all day long. I figure if they turn it load and their station
goes off the air for a while they might get the message. ;-) :-D
If they keep the volume at a respectful level they will be allowed to
listen to their music as they wish as long as I don't have to listen
to it at uncomfortable levels.
I know this is entirely illegal and don't care about it. This is war
(!!!)and I plan on winning.
If you have plans for something that would help me achieve my goal I
would like to hear of it. My electronics skills are advanced (I've
used to build and design "bugs" for many years, I own a good equipped
lab, enough that I could build a project.
I have some experience with rf broadcast circuits.
The proximity of the offending radio's location to my house is quite
near so I don't believe a transmitter with an overly large
power...something between 3-5W
will be enough...LOL....
I'm "jamming" this neighbour with a 5W transmitter, but have to change
the frequency MANUALLY as soon as he changes the station, so I cannot
figure out how to do it automatically...
I'll be VERY THANKFUL for your help and ideas
TIA
Nina
nina.p20@gmail.com

Do you have a schematic of your transmitter you could put up somewhere ?
That would help with varying the frequency.

Squinch

 

[Rich Grise]

On Monday 20 September 2004 12:16 pm, Glenn Gundlach did deign to grace us
with the following:

fozztexx@fozztexx.com (Chris Osborn) wrote in message
news:<00C3d.23603$aE4.15242@newssvr29.news.prodigy.com>...

I guess what I was hoping for was a schematic that showed how to have
a input voltage, a reference to the input's max, and a reference to
the output's max, and it would do the scaling. Can that be made with
an LM324?

LM324 is an opamp on Valium. You need something much faster for video.
National, TI, Maxim, Analog devices and other have good amps for
reasonable prices. Check the MFRs websites and Digi-Key, Mouser ...

For your purposes I think I would do it as a multi-input switch with
the proper gain scaling for each input.
GG

I second this. I've worked with video games before, and there are
only a couple of attenuations you'd need.

And 15 KHz is the sync rate, but the video goes up to 6 MHZ. Lowering
the bandwidth spreads out the pixels - their edges are rise time, you
know.

It's cool watching live TV video on a scope - it's like an edge-on
view of the screen, where amplitude is intensigy - it's almost 3D,
with the proper medication, of course. ;-)

Good Luck!
Rich

 

[Rich Grise]

On Sunday 19 September 2004 07:54 pm, Nina did deign to grace us with the
following:

Well...
Thanx all who tried to help me in any way
The whole "story" is:
The main problem is the guy I'm dealing with...He is a mentally ill
guy, that has been freed from a madhouse about 3 month ago. He lives
in his 14 room yard (yes, he sleeps there too) and has conflicts with
all authorities, including police. He's arrested from time to time for
violence against his wife or children or neighbours, but released
after a few hours, as he is - as I said - insane, and the authorities
are powerless against him. He is really ill, but not stupid. He lowers
the volume between 14:00-16:00 and from 00:00 up to 06:00. Lower, not
closing...
Our windows are about 10m from his yeard, so you can imagine...
I've considered all the suggestions some of the members gave, as
others have said, jamming his radio could get me into serious
troubles, and changed my "jammer" with a 50-100mW module...It has
about the same effect.

If in fact, the man is ill, that exacerbates the disservice you'd

be doing both to him, his family, the neighbors, and yourself by
simply making jamming noises. That's the response of a spoiled 2-
year-old brat.

It's not your responsibility to help him with his mental problems,
but the adult thing to do on your part would be to be civilized
about it - if you can't talk to the guy in a civilized fashion,
find some neutral third party, maybe a clergyman or something.

If he's doing violence against his wife, sadly, it's her
responsibility to charge the guy with battery and make it stick -
it's irrelevant how sick a person is, they "should" still be
accountable for their actions.

And violating noise ordinances is actionable. If talking to
him is ineffective, then file a formal complaint, and if it
doesn't do any good, then file another, and keep it up
until "they" do something about it. If a couple of years
go by, and you have documentation of being blown off, then
go to the attorney general and sue the pants off of everyone
involved.

If it really comes to that, you might have to hire somebody
with credentials to come out with a sound level meter - but
document, document, document. Leave a paper trail.

Of course, don't do any of this crap if in fact you know
that you're wrong and are simply overreacting to normal
neighbor noise.

Good Luck!
Rich

 

[Ban]

Glenn Gundlach wrote:

Not exactly sure what the difference is. I think one of these other
chips might be an op-amp, it's an LM324.


It isn't a problem with the video really. I'm hooking up arcade PCBs
to an old RGB monitor which is able to sync down to the 15khz. Some
of the boards I have output up to 3V, some output less than 0.5V.
They all work great hooked up to the monitor that is in their
dedicated cabinet. I just wanted something that could automatically
adjust the levels while it's on my test bench.

I guess what I was hoping for was a schematic that showed how to have
a input voltage, a reference to the input's max, and a reference to
the output's max, and it would do the scaling. Can that be made with
an LM324?

LM324 is an opamp on Valium. You need something much faster for video.
National, TI, Maxim, Analog devices and other have good amps for
reasonable prices. Check the MFRs websites and Digi-Key, Mouser ...

For your purposes I think I would do it as a multi-input switch with
the proper gain scaling for each input.
GG

Even if you use a video opamp it will not be able to *automatically* correct
the gain. you will need a VCA with the appropriate bandwidth and a circuit
to determine the level of the video signal. This is not a trivial task.
If you do not need amplification, a passive adjustable damping pad could be
manually adjusted, so the following stage is not overloaded.
--
ciao Ban
Bordighera, Italy

 

[Watson A.Name - \"Watt Su]

"Rich Grise" <null@example.net> wrote in message
news:drM3d.5211$Ii2.4242@trnddc09...

On Monday 20 September 2004 06:24 pm, Hal Murray did deign to grace us
with
the following:


An AND gate can be made of two diodes and a resistor:

+5V
|
R
|
A -|<|--+---- OUT
|
B -|<|--+

Here, R is a resistor and the |<| thingies are small diodes.

[snip]

My question: What's the point of the resistor here? It seems to me
this could work without it.

Without the resistor, how much current would you get through
one of the diodes when the inputis at 0V?

That's simple. All of it. ;-)

Yeah. Besides, how didja come up with this "AND Gate" stuff? ;-)
http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/diodgate.html

 

[Roger Johansson]

"Watson A.Name - \"Watt Sun, the Dark Remover\"" <NOSPAM@dslextreme.com>
wrote:

Yeah. Besides, how didja come up with this "AND Gate" stuff? ;-)
http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/diodgate.html

Why did you give us this url ?

To show a totally faulty way of doing it?

Look at the first circuit on that web page.
If both inputs are high there is no problem, the output is high, it is
directly connected to the plus 6 Volt power supply.

If input A goes low, what happens?

Unless it can take out the power supply and kill it, nothing happens to
the output. It is still directly connected to the plus 6 Volt power
supply.

If the input to A is made up of a switch to ground it will burn the
diode, or if a very sturdy diode is used, the power supply will burn.



--
Roger J.

 

[AntronX]

If so, you could offer
to build them a visible level meter that lights a red light when it's
too loud.

>>> HE IS CRASY!!! HE IS MENTALLY CHALLENGED!!! READ PREVIOUS POSTS...

 

[Louis Hom]

A late reply, but if you find yourself in a bind and need something local,
you might try Gateway Electronics east of Clairemont Mesa off of Ruffin
Road.
--
______________________________________________________________________________
Lou Hom >K'93
lhom@ocf.berkeley.edu
http://www.ocf.berkeley.edu/~lhom/

 

[Clarence]

"AntronX" <discountscreenco@earthlink.net> wrote in message
news:6DU3d.8328$mb6.6757@newsread3.news.atl.earthlink.net...

If so, you could offer
to build them a visible level meter that lights a red light when it's
too loud.

HE IS CRASY!!! HE IS MENTALLY CHALLENGED!!! READ PREVIOUS POSTS...

It appears HE is not the only one.

 

[Roger Johansson]

"Clarence" <No@No.Com> wrote:

http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/diodgate.html

If input A goes low, what happens?
Unless it can take out the power supply and kill it, nothing happens
to the output. It is still directly connected to the plus 6 Volt power
supply.

The link shows an "OR" gate.

No, it doesn't. If anything it is an always gate, the output is always
high because it is directly connected to the plus 6 Volt supply.

How could it ever be anything but high, unless the power supply is turned
off, or breaks down?

AN "OR" for positive logic (as shown in the link,) has the resistor
pulling down, and the diodes connected with the cathodes common to the
resistor. Pulling the Anode of either diode to VCC results in an output
of VCC - (Nominal 0.7V)

Is that any clearer?

No. And I can't believe that you are trying to defend that circuit as
anything but a big mistake.

Don't you see that the output is directly connected to plus 6 Volt?

Compare how the connection to plus 6 Volt is drawn in the the following
circuits. The connection is drawn exactly alike in the first circuit, so
there can be no doubt that the output is connected to plus 6 Volt.


--
Roger J.

 

[Clarence]

"Roger Johansson" <no-email@home.se> wrote in message
news:Xns956BBE496DBA186336@130.133.1.4...

"Clarence" <No@No.Com> wrote:

http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/diodgate.html

If input A goes low, what happens?
Unless it can take out the power supply and kill it, nothing happens
to the output. It is still directly connected to the plus 6 Volt power
supply.


The link shows an "OR" gate.

No, it doesn't. If anything it is an always gate, the output is always
high because it is directly connected to the plus 6 Volt supply.

How could it ever be anything but high, unless the power supply is turned
off, or breaks down?

Ah-ha! I see what you mean. I thought it referred to the design maximum
voltage. But IF it is actually a power supply (battery?) it is really wired
wrong. But since it was an educational web site, perhaps the questions should
be "WHAT is WRONG with this picture?"

 

[Roger Johansson]

"Clarence" <No@No.Com> wrote:

http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/diodgate.htm

How could it ever be anything but high, unless the power supply is
turned off, or breaks down?

Ah-ha! I see what you mean. I thought it referred to the design
maximum voltage. But IF it is actually a power supply (battery?) it is
really wired wrong. But since it was an educational web site, perhaps
the questions should be "WHAT is WRONG with this picture?"

This web page is obviously not intended to show examples of faulty
circuits, so it is simply a mistake.



--
Roger J.