I took a pen lazer, , applied a couple volts and an Audio signal, wired a
solar panel to an audio receiver , beam lazer onto solar panel and i get the
audio comming out of receiver,.
TIA

Surely to have done this you need to have the understanding of why it
works, otherwise you wouldnt have done it?

It didn't. There's no way it COULD have worked like you say it did. When
it was producing a signal, was it like a voice? Was it a voice telling you
to do things? If so, what kinds of things does the voice tell you to do?
You need to get to the bottom of this for the sake of your own well-being.
Try quitting methamphetamines and coke for a while, see if that has any
effect.
No, I'm not just being sarcastic, I'm serious.



"Mitch" wrote in message
...
I took a pen lazer, , applied a couple volts and an Audio signal, wired a
solar panel to an audio receiver , beam lazer onto solar panel and i get
the audio comming out of receiver,.
TIA

Your a ****ing asshole,

"tom" wrote in message
news:VR9Qd.390868$8l.304335@pd7tw1no...
It didn't. There's no way it COULD have worked like you say it did. When
it was producing a signal, was it like a voice? Was it a voice telling
you
to do things? If so, what kinds of things does the voice tell you to do?
You need to get to the bottom of this for the sake of your own well-being.
Try quitting methamphetamines and coke for a while, see if that has any
effect.
No, I'm not just being sarcastic, I'm serious.



"Mitch" wrote in message
...
I took a pen lazer, , applied a couple volts and an Audio signal, wired a
solar panel to an audio receiver , beam lazer onto solar panel and i get
the audio comming out of receiver,.
TIA

No, I do understand why it works, I had a solar panel from a previous
project, and for some reason i had thought about trying this, so i did, and
it did what i was hoping it to do, Infact i also tried using a LED in place
of the lazer and it works too, but distance is short, . Im not on Crack or
anything, Try it and you will see...

"Coyoteboy" wrote in message
ups.com...
Surely to have done this you need to have the understanding of why it
works, otherwise you wouldnt have done it?

Supposed to be a NOT in there " I do NOT understand how it works"

"Mitch" wrote in message
...
No, I do understand why it works, I had a solar panel from a previous
project, and for some reason i had thought about trying this, so i did,
and
it did what i was hoping it to do, Infact i also tried using a LED in
place
of the lazer and it works too, but distance is short, . Im not on Crack or
anything, Try it and you will see...

"Coyoteboy" wrote in message
ups.com...
Surely to have done this you need to have the understanding of why it
works, otherwise you wouldnt have done it?

Yes, he is a complete asshole --- to YOU.


"Mitch" wrote in message
...
Your a ****ing asshole,

"tom" wrote in message
news:VR9Qd.390868$8l.304335@pd7tw1no...
It didn't. There's no way it COULD have worked like you say it did.
When
it was producing a signal, was it like a voice? Was it a voice telling
you
to do things? If so, what kinds of things does the voice tell you to do?
You need to get to the bottom of this for the sake of your own
well-being.
Try quitting methamphetamines and coke for a while, see if that has any
effect.
No, I'm not just being sarcastic, I'm serious.



"Mitch" wrote in message
...
I took a pen lazer, , applied a couple volts and an Audio signal, wired
a
solar panel to an audio receiver , beam lazer onto solar panel and i get
the audio comming out of receiver,.
TIA

It couldnt have worked because, IIRC, solar cells do not respond fast
enough to convert the signal back from varying amplitude light. Plus
connecting up the laser would not be as simple as you suggest. you
would need to use some sort of phototransistor to get a reasonable
response speed and sample sound from it.

Don't have to, I already know it won't work. It's like if someone said "I
got a fan, started it turning, and pointed it at a windpower generator, and
then plugged the fan into the wind-generator, and a feedback loop started
where the more the fan blew, the more electricity was generated, and the
more the fan blew and now there's a hurricane blowing down houses and I've
get megavolts of electricity".
For one thing there's nowhere near enough wattage to begin to power a
speaker, then there's a million other easons, like the response times, etc
etc.
Just admit it, you haven't tried it out at all, you're trying it out on us,
now.


"Mitch" wrote in message
...
Well, there is no reason for me to make something like this up, Im telling
you, it does work,
For the 7 buks it would cost for a small solar panel and a lazer pointer ,
try it out. PLEASE.

"Coyoteboy" wrote in message
oups.com...
It couldnt have worked because, IIRC, solar cells do not respond fast
enough to convert the signal back from varying amplitude light. Plus
connecting up the laser would not be as simple as you suggest. you
would need to use some sort of phototransistor to get a reasonable
response speed and sample sound from it.

Well, there is no reason for me to make something like this up, Im telling
you, it does work,
For the 7 buks it would cost for a small solar panel and a lazer pointer ,
try it out. PLEASE.

"Coyoteboy" wrote in message
oups.com...
It couldnt have worked because, IIRC, solar cells do not respond fast
enough to convert the signal back from varying amplitude light. Plus
connecting up the laser would not be as simple as you suggest. you
would need to use some sort of phototransistor to get a reasonable
response speed and sample sound from it.

Mitch wrote:
I took a pen lazer, , applied a couple volts and an Audio signal, wired a
solar panel to an audio receiver , beam lazer onto solar panel and i get the
audio comming out of receiver,.
TIA

Amplitude modulation.

You caused a varying current through the laser diode.
This caused the flux density (brightness) of the laser beam to change
in step with the changing current. The modulated light you created
traveled to your solar cell and was amplified so that you could hear it
as sound.

Light beam radio. Optical amplitude modulator and detector.

Same ting.

When I was doing this stuff 38 years ago, I wired a tiny lightbulb in
series with a battery and low-impedance winding of a transformer to modulate
the brightness of the bulb. With an appropriate lens, I transmitted audio
over fifty feet.

Your next experiment involves using a switching transistor in series with
your laser, driven from the Transmit Data pin of the serial port on your computer.

Set up two computers thusly and create your own optical data network!

Next, graduate to PIN photodiodes in parabolic mirrors and infrared lasers
to transmit data for fairly long distances. (Not for use in the rain!)


--Winston

Why would i try it out on you?
Your a ****ing cock sucking Faggot.
If you dont have anyting good to say then **** off.

"Tom" wrote in message
news:PwoQd.398073$Xk.341266@pd7tw3no...
Don't have to, I already know it won't work. It's like if someone said
"I
got a fan, started it turning, and pointed it at a windpower generator,
and
then plugged the fan into the wind-generator, and a feedback loop started
where the more the fan blew, the more electricity was generated, and the
more the fan blew and now there's a hurricane blowing down houses and I've
get megavolts of electricity".
For one thing there's nowhere near enough wattage to begin to power a
speaker, then there's a million other easons, like the response times, etc
etc.
Just admit it, you haven't tried it out at all, you're trying it out on
us,
now.


"Mitch" wrote in message
...
Well, there is no reason for me to make something like this up, Im
telling
you, it does work,
For the 7 buks it would cost for a small solar panel and a lazer pointer
,
try it out. PLEASE.

"Coyoteboy" wrote in message
oups.com...
It couldnt have worked because, IIRC, solar cells do not respond fast
enough to convert the signal back from varying amplitude light. Plus
connecting up the laser would not be as simple as you suggest. you
would need to use some sort of phototransistor to get a reasonable
response speed and sample sound from it.

Hey jack ass, read my first post, the laser is beaming onto a solar panel
that is plugged into an audio receiver, not straight into a speaker you
****ing retard.
**** off you piece of ****, go **** your mother some more.

"Tom" wrote in message
news:PwoQd.398073$Xk.341266@pd7tw3no...
Don't have to, I already know it won't work. It's like if someone said
"I got a fan, started it turning, and pointed it at a windpower generator,
and then plugged the fan into the wind-generator, and a feedback loop
started where the more the fan blew, the more electricity was generated,
and the more the fan blew and now there's a hurricane blowing down houses
and I've get megavolts of electricity".
For one thing there's nowhere near enough wattage to begin to power a
speaker, then there's a million other easons, like the response times, etc
etc.
Just admit it, you haven't tried it out at all, you're trying it out on
us, now.


"Mitch" wrote in message
...
Well, there is no reason for me to make something like this up, Im
telling you, it does work,
For the 7 buks it would cost for a small solar panel and a lazer pointer
, try it out. PLEASE.

"Coyoteboy" wrote in message
oups.com...
It couldnt have worked because, IIRC, solar cells do not respond fast
enough to convert the signal back from varying amplitude light. Plus
connecting up the laser would not be as simple as you suggest. you
would need to use some sort of phototransistor to get a reasonable
response speed and sample sound from it.

"Winston" wrote in message
...
Mitch wrote:
I took a pen lazer, , applied a couple volts and an Audio signal, wired a
solar panel to an audio receiver , beam lazer onto solar panel and i get
the audio comming out of receiver,.
TIA

Amplitude modulation.

You caused a varying current through the laser diode.
This caused the flux density (brightness) of the laser beam to change
in step with the changing current. The modulated light you created
traveled to your solar cell and was amplified so that you could hear it
as sound.

Light beam radio. Optical amplitude modulator and detector.

Same ting.

When I was doing this stuff 38 years ago, I wired a tiny lightbulb in
series with a battery and low-impedance winding of a transformer to
modulate
the brightness of the bulb. With an appropriate lens, I transmitted audio
over fifty feet.

Your next experiment involves using a switching transistor in series with
your laser, driven from the Transmit Data pin of the serial port on your
computer.

Set up two computers thusly and create your own optical data network!

Next, graduate to PIN photodiodes in parabolic mirrors and infrared lasers
to transmit data for fairly long distances. (Not for use in the rain!)


--Winston

I did notice that you can very slightly see the brightness fluctuate.
And I was thinking about data communication with this,
Thank you for the Info

Mitch,
From your explanation, it can be perceived as not being
possible, you haven't included much in the way of details, just rudimentary
points. If someone else believes that you are making it up, just for the
sake of it, instead of blasting them with profanity, perhaps you could
embellish your original story, so that people get a better idea of what you
are doing.

I am not an administrator, in this NG, or any other, but I think your
response was well over the top, and people may think twice about responding
to you again.

Paul

are you his bitch? did you read the bull**** that was comming out of his
cock sucker?? I explained it well enough, If you read down below to winstons
post, you will see he understood exactly what i am doing.

"loedown" wrote in message
...
Mitch,
From your explanation, it can be perceived as not being
possible, you haven't included much in the way of details, just
rudimentary
points. If someone else believes that you are making it up, just for the
sake of it, instead of blasting them with profanity, perhaps you could
embellish your original story, so that people get a better idea of what
you
are doing.

I am not an administrator, in this NG, or any other, but I think your
response was well over the top, and people may think twice about
responding
to you again.

Paul

Mitch,
Read what I wrote, it's only a suggestion and no I am not his
bitch.

Paul

"Mitch" wrote

are you his bitch? did you read the bull**** that was comming out of
his
cock sucker?? I explained it well enough, If you read down below to
winstons
post, you will see he understood exactly what i am doing.

If you'd like to prove it, post us some pictures of your setup and tell
us some specifics. How did you apply audio to the laser pointer, and
how did you hook the solar cell up? What kind of solar cell? A
schematic would help to clarify some things since your description of
the circuitry was very vague.

I think it's possible, I'd just like to see your circuitry.

Back in the late 70's (when I was a teenager), I built a light beam
communicator that used a red LED and a photo-transistor. What intrigued
me at the time was that you couldn't even see the intensity of the LED
change with modulation, but it sure was detectable by the
phototransistor.

Mitch wrote:
"Winston" wrote in message
...

(Optical communication theory of operation)

I did notice that you can very slightly see the brightness fluctuate.
And I was thinking about data communication with this,
Thank you for the Info

You're welcome.
For fun sometime, I suggest connecting a scope across your
solar cell to see the resulting waveform. With another
scope channel, have a look at the original waveform.

You will probably notice some significant waveform distortion
as the signal works its way through the laser and your solar cell.
Both of these parts are "non-linear" and will *not* give you a
low - distortion waveform at the receiving end until you re-center
the zero-crossing point of your modulator and adjust the current
level to stay away from over - and under - modulation (driving the
laser too much or too little with the sound signal). After you do
that, both waveforms will look similar.

The laser is controlled by a 'constant current driver' circuit, meant
to prevent the laser from overheating when using fresh batteries and
to keep laser emission constant as the batteries flatten out.

Each alternate half cycle, you are subtracting from available battery
current ("bucking" the current). Every other half-cycle of your
modulation signal, you are increasing the current available to the
laser ("boosting" the current). This is largely what is causing
the laser brightness to be "modulated" or controlled by your sound
source.

Meanwhile, the 'driver' circuit is doing its best to even out those
current changes! Ironically, the poor (high-frequency handling)
characteristics of the 'driver' circuit in your laser pointer is the
reason that you can modulate the laser beam at all.

The "buck" and "boost" terms are industry standard descriptions
for switchmode power supply design. Now you know that a "boost"
converter places two power sources in series and in-phase to increase
output voltage and a "buck" converter puts these series power sources
180 degrees out of phase to reduce output voltage. Very efficient.

What if you used two lasers at one end and two photodiodes at
the other end, arranging one laser to become brighter during positive
transitions of the source sound and the other laser to be brighter
during negative transitions of the source sound? Put the photo-
diodes in series and connect your amplifer at the center tap.

Now your system is much more immune to interference from flashbulbs
and reflections, because these 'noise' sources cause both photo-
diodes to conduct more readily, 'phase-canceling' the interference.

Is this stuff fun, or what?

--Winston

That would be a phototransistor - far faster response abilities than a
solar cell in my experience, by orders of magnitude.

J

"Coyoteboy" wrote

That would be a phototransistor - far faster response abilities than a
solar cell in my experience, by orders of magnitude.

I actually found references on the net showing the use of a solar cell
for audio reception. Also using a CdS photoresistor. As soon as I get
some free time (and a cheap laser pointer), I'm going to find out first
hand. I will report my results.

Sorry there guy, i am just ****ed off at his comments.

"loedown" wrote in message
...
Mitch,
Read what I wrote, it's only a suggestion and no I am not his
bitch.

Paul

It couldnt be any more simple than it is. the audio is applied connecting to
the pos and neg of the voltage going into laser, and the solar cell is
hooked straight up to an amp. (2 wires comming from cell into amp as if it
was your original wired audio signal)

wrote in message
...

"Mitch" wrote

are you his bitch? did you read the bull**** that was comming out of
his
cock sucker?? I explained it well enough, If you read down below to
winstons
post, you will see he understood exactly what i am doing.

If you'd like to prove it, post us some pictures of your setup and tell
us some specifics. How did you apply audio to the laser pointer, and
how did you hook the solar cell up? What kind of solar cell? A
schematic would help to clarify some things since your description of
the circuitry was very vague.

I think it's possible, I'd just like to see your circuitry.

Back in the late 70's (when I was a teenager), I built a light beam
communicator that used a red LED and a photo-transistor. What intrigued
me at the time was that you couldn't even see the intensity of the LED
change with modulation, but it sure was detectable by the
phototransistor.

OK, so maybe theres higher speed solar cells these days, fair play.
It'd be the TX side id be more interested in, hw did you link the laser
into the audio source and supply it with enough power to lase??

J


Mitch wrote:
It couldnt be any more simple than it is. the audio is applied
connecting to
the pos and neg of the voltage going into laser, and the solar cell
is
hooked straight up to an amp. (2 wires comming from cell into amp as
if it
was your original wired audio signal)

wrote in message
...

"Mitch" wrote

are you his bitch? did you read the bull**** that was comming out
of
his
cock sucker?? I explained it well enough, If you read down below
to
winstons
post, you will see he understood exactly what i am doing.

If you'd like to prove it, post us some pictures of your setup and
tell
us some specifics. How did you apply audio to the laser pointer,
and
how did you hook the solar cell up? What kind of solar cell? A
schematic would help to clarify some things since your description
of
the circuitry was very vague.

I think it's possible, I'd just like to see your circuitry.

Back in the late 70's (when I was a teenager), I built a light beam
communicator that used a red LED and a photo-transistor. What
intrigued
me at the time was that you couldn't even see the intensity of the
LED
change with modulation, but it sure was detectable by the
phototransistor.

Straight in along with the voltage

"Coyoteboy" wrote in message
oups.com...
OK, so maybe theres higher speed solar cells these days, fair play.
It'd be the TX side id be more interested in, hw did you link the laser
into the audio source and supply it with enough power to lase??

J


Mitch wrote:
It couldnt be any more simple than it is. the audio is applied
connecting to
the pos and neg of the voltage going into laser, and the solar cell
is
hooked straight up to an amp. (2 wires comming from cell into amp as
if it
was your original wired audio signal)

wrote in message
...

"Mitch" wrote

are you his bitch? did you read the bull**** that was comming out
of
his
cock sucker?? I explained it well enough, If you read down below
to
winstons
post, you will see he understood exactly what i am doing.

If you'd like to prove it, post us some pictures of your setup and
tell
us some specifics. How did you apply audio to the laser pointer,
and
how did you hook the solar cell up? What kind of solar cell? A
schematic would help to clarify some things since your description
of
the circuitry was very vague.

I think it's possible, I'd just like to see your circuitry.

Back in the late 70's (when I was a teenager), I built a light beam
communicator that used a red LED and a photo-transistor. What
intrigued
me at the time was that you couldn't even see the intensity of the
LED
change with modulation, but it sure was detectable by the
phototransistor.

On Tue, 15 Feb 2005 05:39:35 -0800, Coyoteboy wrote:

It couldnt have worked because, IIRC, solar cells do not respond fast
enough to convert the signal back from varying amplitude light. Plus
connecting up the laser would not be as simple as you suggest. you
would need to use some sort of phototransistor to get a reasonable
response speed and sample sound from it.

You are obviously a dork. The original post was, "I get sound out. Why?"
Ergo, it clearly works. You sound like the guy who said, "Heavier-than-
air flight is impossible."
--
The Pig Bladder From Uranus, Still Waiting for
Some Hot Babe to Ask What My Favorite Planet Is.

On Tue, 15 Feb 2005 09:09:57 -0800, Mitch wrote:

Well, there is no reason for me to make something like this up, Im telling
you, it does work,
For the 7 buks it would cost for a small solar panel and a lazer pointer ,
try it out. PLEASE.

Just take their crap with a grain of salt. It works because you're
modulating the light output of the laser, and the output of the solar
cell is proportional to the light input. It's just that simple.

Cheers!
Rich

On Tue, 15 Feb 2005 15:26:39 +0000, Tom wrote:

Don't have to, I already know it won't work.

What kind of brain damage do you people have, that makes you say,
"It won't work" in response to a post that said, "This works, but
I don't know how/why."

Dimwits.

Thanks,
Rich

On Tue, 15 Feb 2005 16:27:24 -0800, Mitch wrote:

Hey jack ass, read my first post, the laser is beaming onto a solar panel
that is plugged into an audio receiver, not straight into a speaker you
****ing retard.
**** off you piece of ****, go **** your mother some more.

Well, that decides if I want to follow this thread.

Or any more posts by Mitch.

(the answer is, "NO".)

In a strangely humorous manner, the person whos sig is:
The Pig Bladder From Uranus, Still Waiting for
Some Hot Babe to Ask What My Favorite Planet Is.

says
You are obviously a dork.

lol.

There are underlying reasons that people question it. at the very least
it could be a dumb-ass kid trying to get a homework question answered
without putting in any effort. You cant ask for advice off people
without expecting to have to give them more information about what you
are doing.

J