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Oscillator

J

Jim Thompson

Jan 1, 1970
0
In some prior posts there have been inquiries regarding low distortion
oscillators.

Out of curiosity I simulated a 200Hz oscillator made simply from an
A1A-style gyrator BP filter, then wrapped a positive feedback loop
around it, with back-to-back diodes used to limit the drive to the
input to the BP filter.

Result: 3rd harmonic was at -58dB

...Jim Thompson
 
J

John Fields

Jan 1, 1970
0
In some prior posts there have been inquiries regarding low distortion
oscillators.

Out of curiosity I simulated a 200Hz oscillator made simply from an
A1A-style gyrator BP filter, then wrapped a positive feedback loop
around it, with back-to-back diodes used to limit the drive to the
input to the BP filter.

Result: 3rd harmonic was at -58dB
 
J

Jim Thompson

Jan 1, 1970
0
I'll post it in a few minutes.

Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

...Jim Thompson
 
J

Jim Thompson

Jan 1, 1970
0
I'll post it in a few minutes.

Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

...Jim Thompson

See...

Newsgroups: alt.binaries.schematics.electronic
Subject: Oscillator Schematic (from S.E.D) -
GyratorFilter_A1A_Oscillator.pdf
Message-ID: <[email protected]>

...Jim Thompson
 
B

Ban

Jan 1, 1970
0
Jim said:
Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(
Jim, I am with you and your wife in this hard time.
 
Jim said:
I'll post it in a few minutes.

Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

Bummer. I'm of an age where too damn many of my friends are starting to
die of cancer. The fact that it strikes pretty much at random is no
comfort at all.
 
J

John Fields

Jan 1, 1970
0
Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(
 
W

Winfield Hill

Jan 1, 1970
0
Jim Thompson wrote...
Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

Aw shit! :-(
 
F

Frank Bemelman

Jan 1, 1970
0
Jim Thompson said:
I'll post it in a few minutes.

Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

That is terrible. I hope his doctors are generously with painkillers.
Today I returned from a 5-day trip to Cairo with my brother, who has
lung cancer. A totally insane trip to see the Pyramids, but we did it.
Spend time with your son, Jim.
 
J

Jim Thompson

Jan 1, 1970
0
That is terrible. I hope his doctors are generously with painkillers.
Today I returned from a 5-day trip to Cairo with my brother, who has
lung cancer. A totally insane trip to see the Pyramids, but we did it.
Spend time with your son, Jim.

Thanks to all of you for your comforting words!

They put a STENT in Duane's colon and laser-ablated the tumor there.

So they haven't cut into him yet.

They're installing a "port" in his chest this morning for ease of
doing the chemo.

The doctors seem very upbeat, but I saw the pictures... doesn't look
good to me :-(

...Jim Thompson
 
M

Michael A. Terrell

Jan 1, 1970
0
Jim said:
Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

Jim Thompson


I lost my mother to Colon cancer when she was 52. Its a nasty
disease, but there have been some advancement in treatment in the last
20 years.

--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
J

Jonathan Kirwan

Jan 1, 1970
0
<snip>
Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

I'm very sorry, Jim. I sincerely wish you the best in this.

Jon

P.S.
It's not the same thing, but my 21yr old autistic daughter has grand
mal seizures (a few weeks ago, three separated by four hours in a
single day) and has broken six of her teeth on the bathtub a few years
ago and broke both her ulna and radius just last September. Helping
her through a seizure and discovering a broken arm or bloody teeth on
the floor is something I hope few parents experience.
 
C

Chuck Harris

Jan 1, 1970
0
Michael said:
I lost my mother to Colon cancer when she was 52. Its a nasty
disease, but there have been some advancement in treatment in the last
20 years.

I lost my dad to colo/rectal cancer early last year. He was 76.

I started my EE career developing electronic controllers used in cancer
treatment (1981), I was quite immersed in the field back then. I quit
working in medical electronics largely because of the draconian regulations
the FDA put into place in the mid '80s... (done largely because a Canadian
company that made radiation treatment equipment cocked up, and cooked a
few patients beyond crispy, but sadly, I digress...)

When my dad was diagnosed back in '02, I started to re-acquaint myself with
the state of the art in colon cancer treatment, and I was simply appalled!

They have made great strides in palliative measures (ease the symptoms),
but absolutely *no* progress in curing the disease. The measures that
are called "cures" are really just extended remissions. In very rare
circumstances, they have patients that are actually cured, but in most
cases, the disease re-emerges within 5-7 years. That counts as a cure
because the patient lasted 5 years past the diagnosis. In spite of that,
I believe the medical community is on the threshold of a cure.

The radiation treatments that they use are most concerning. The treatments
literally kill the colon and the surrounding pelvic tissues, bones, and bone
marrow. The patient becomes extremely susceptible to broken pelvic bones,
and perforated intestines. The maximum expected lifetime of a patient that
has had these treatments is around 7 years. By that time, the colon is in
shreds. No surgeries can be performed after these treatments because of the
inability of the exposed tissues to repair themselves. That may be appropriate
for a 70yo man, but not, I think, for a 33yo man.

Understand that your son's chances of survival are well less than 10%. His
youth is his best asset in beating these odds.

There are a few treatments that have been shown to have good results on the
liver involvement. His liver is what will ultimately kill your son, so do
not ignore this! If the lesions in his liver are still small, and few, there
are a couple of things that can help. The University of Maryland is doing
some treatments called RF Ablation (which oddly enough I helped develop
while I was still doing my graduate studies) which allow for a minimally
invasive method of killing a few localized tumors. They also are using a
process called SIRT spheres, which can kill off great quantities of small
tumors, provided the liver is still functioning. *TIME IS OF THE ESSENCE!*
And there is also a technique that involves injecting a lethal dose of
a chemo agent directly into the blood supply of the liver, which has shown
some good results. These treatments are all FDA approved, and are on
the insurance company's lists of approved treatments. Don't let the doctor
tell you otherwise!

One other thing, the success rate of the experimental treatments being done
by NIH is well above what his doctor will tell you. He will say it is about
6%, but the truth is some are more like 60%. Look into the programs that are
being done by NIH.

If by some chance your son "crashes" when he is getting an herbatux treatment,
it is because the drug, as administered, doesn't match the electrolyte levels
needed to keep his heart beating. Have his doctor send all of his stats, and
other information to IMCLONE. (We made a big mistake here with my dad.)

Google is your friend. You can easily find the programs I have mentioned
by using google. If you can't, let me know, and I will look up the urls.

-Chuck Harris
 
J

Jim Thompson

Jan 1, 1970
0
I lost my dad to colo/rectal cancer early last year. He was 76.

I started my EE career developing electronic controllers used in cancer
treatment (1981), I was quite immersed in the field back then. I quit
working in medical electronics largely because of the draconian regulations
the FDA put into place in the mid '80s... (done largely because a Canadian
company that made radiation treatment equipment cocked up, and cooked a
few patients beyond crispy, but sadly, I digress...)

When my dad was diagnosed back in '02, I started to re-acquaint myself with
the state of the art in colon cancer treatment, and I was simply appalled!

They have made great strides in palliative measures (ease the symptoms),
but absolutely *no* progress in curing the disease. The measures that
are called "cures" are really just extended remissions. In very rare
circumstances, they have patients that are actually cured, but in most
cases, the disease re-emerges within 5-7 years. That counts as a cure
because the patient lasted 5 years past the diagnosis. In spite of that,
I believe the medical community is on the threshold of a cure.

The radiation treatments that they use are most concerning. The treatments
literally kill the colon and the surrounding pelvic tissues, bones, and bone
marrow. The patient becomes extremely susceptible to broken pelvic bones,
and perforated intestines. The maximum expected lifetime of a patient that
has had these treatments is around 7 years. By that time, the colon is in
shreds. No surgeries can be performed after these treatments because of the
inability of the exposed tissues to repair themselves. That may be appropriate
for a 70yo man, but not, I think, for a 33yo man.

Understand that your son's chances of survival are well less than 10%. His
youth is his best asset in beating these odds.

There are a few treatments that have been shown to have good results on the
liver involvement. His liver is what will ultimately kill your son, so do
not ignore this! If the lesions in his liver are still small, and few, there
are a couple of things that can help. The University of Maryland is doing
some treatments called RF Ablation (which oddly enough I helped develop
while I was still doing my graduate studies) which allow for a minimally
invasive method of killing a few localized tumors. They also are using a
process called SIRT spheres, which can kill off great quantities of small
tumors, provided the liver is still functioning. *TIME IS OF THE ESSENCE!*
And there is also a technique that involves injecting a lethal dose of
a chemo agent directly into the blood supply of the liver, which has shown
some good results. These treatments are all FDA approved, and are on
the insurance company's lists of approved treatments. Don't let the doctor
tell you otherwise!

One other thing, the success rate of the experimental treatments being done
by NIH is well above what his doctor will tell you. He will say it is about
6%, but the truth is some are more like 60%. Look into the programs that are
being done by NIH.

If by some chance your son "crashes" when he is getting an herbatux treatment,
it is because the drug, as administered, doesn't match the electrolyte levels
needed to keep his heart beating. Have his doctor send all of his stats, and
other information to IMCLONE. (We made a big mistake here with my dad.)

Google is your friend. You can easily find the programs I have mentioned
by using google. If you can't, let me know, and I will look up the urls.

-Chuck Harris

Thanks, Chuck.

I'll look into your references.

My son is at Banner Baywood which is recognized as a specialty cancer
center... a stroke of luck because that's the emergency room he walked
into when he started losing blood rectally.

...Jim Thompson
 
J

Jim Thompson

Jan 1, 1970
0
I'm very sorry, Jim. I sincerely wish you the best in this.
Thanks!


Jon

P.S.
It's not the same thing, but my 21yr old autistic daughter has grand
mal seizures (a few weeks ago, three separated by four hours in a
single day) and has broken six of her teeth on the bathtub a few years
ago and broke both her ulna and radius just last September. Helping
her through a seizure and discovering a broken arm or bloody teeth on
the floor is something I hope few parents experience.

I believe my autistic grandson is 13 (I lose track of birth dates what
with 6 grandkids :)

Haven't seen any indications of a tendency toward seizures.

For the past year he's been at a new school which seems to have found
his hot button... except for still no speech, he's becoming remarkably
adapted to normal living.

...Jim Thompson
 
J

Jonathan Kirwan

Jan 1, 1970
0
I believe my autistic grandson is 13 (I lose track of birth dates what
with 6 grandkids :)

Haven't seen any indications of a tendency toward seizures.

In our case, it didn't start until she was 14 years old. I was told
by a neurologist that it is common to take place only after the onset
of puberty and very rare, beforehand. I'm told it does happen more in
females, as a percent, but I personally know one profound autistic
male who also has regular grand mal seizures.

For the past year he's been at a new school which seems to have found
his hot button... except for still no speech, he's becoming remarkably
adapted to normal living.

That sounds reasonably positive. Our daughter still has her need of
continuing support and she still causes me problems (she recently
turned on a soldering iron and burned a ribbon cable for a DSP board;
twisted a fiber optic cable I needed into a tight pretzel; and just
generally cannot resist the temptations to 'help' me work; etc.) But
we're getting along pretty well and she has such a funny sense of
humor in her drawings. I do get a kick out of her being around. So I
give and get. What hurts me is wondering each night if I'll wake to
something worse than I've already experienced. Probably inevitable,
given time.

Jon
 
M

Michael A. Terrell

Jan 1, 1970
0
Chuck said:
I lost my dad to colo/rectal cancer early last year. He was 76.

I started my EE career developing electronic controllers used in cancer
treatment (1981), I was quite immersed in the field back then. I quit
working in medical electronics largely because of the draconian regulations
the FDA put into place in the mid '80s... (done largely because a Canadian
company that made radiation treatment equipment cocked up, and cooked a
few patients beyond crispy, but sadly, I digress...)

When my dad was diagnosed back in '02, I started to re-acquaint myself with
the state of the art in colon cancer treatment, and I was simply appalled!

They have made great strides in palliative measures (ease the symptoms),
but absolutely *no* progress in curing the disease. The measures that
are called "cures" are really just extended remissions. In very rare
circumstances, they have patients that are actually cured, but in most
cases, the disease re-emerges within 5-7 years. That counts as a cure
because the patient lasted 5 years past the diagnosis. In spite of that,
I believe the medical community is on the threshold of a cure.

The radiation treatments that they use are most concerning. The treatments
literally kill the colon and the surrounding pelvic tissues, bones, and bone
marrow. The patient becomes extremely susceptible to broken pelvic bones,
and perforated intestines. The maximum expected lifetime of a patient that
has had these treatments is around 7 years. By that time, the colon is in
shreds. No surgeries can be performed after these treatments because of the
inability of the exposed tissues to repair themselves. That may be appropriate
for a 70yo man, but not, I think, for a 33yo man.

Understand that your son's chances of survival are well less than 10%. His
youth is his best asset in beating these odds.

There are a few treatments that have been shown to have good results on the
liver involvement. His liver is what will ultimately kill your son, so do
not ignore this! If the lesions in his liver are still small, and few, there
are a couple of things that can help. The University of Maryland is doing
some treatments called RF Ablation (which oddly enough I helped develop
while I was still doing my graduate studies) which allow for a minimally
invasive method of killing a few localized tumors. They also are using a
process called SIRT spheres, which can kill off great quantities of small
tumors, provided the liver is still functioning. *TIME IS OF THE ESSENCE!*
And there is also a technique that involves injecting a lethal dose of
a chemo agent directly into the blood supply of the liver, which has shown
some good results. These treatments are all FDA approved, and are on
the insurance company's lists of approved treatments. Don't let the doctor
tell you otherwise!

One other thing, the success rate of the experimental treatments being done
by NIH is well above what his doctor will tell you. He will say it is about
6%, but the truth is some are more like 60%. Look into the programs that are
being done by NIH.

If by some chance your son "crashes" when he is getting an herbatux treatment,
it is because the drug, as administered, doesn't match the electrolyte levels
needed to keep his heart beating. Have his doctor send all of his stats, and
other information to IMCLONE. (We made a big mistake here with my dad.)

Google is your friend. You can easily find the programs I have mentioned
by using google. If you can't, let me know, and I will look up the urls.

-Chuck Harris


My mother had uterine cancer over 10 years earlier. After a year of
radiation and chemotherapy treatments for the colon cancer she went into
remission for 11 months. Then it came back with a vengeance. It
quickly spread to her circulatory system, and then to her brain. She was
dead a couple weeks after it became active, again. I don't wish her
suffering on anyone. They didn't give her enough pain killers, even
though they knew that she was dying.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
C

Charlie Edmondson

Jan 1, 1970
0
Jim said:
I'll post it in a few minutes.

Just got back from the hospital where my youngest son (33 years old)
is being treated for colon cancer that has spread to lungs and liver
:-(

...Jim Thompson
My prayers will be with you as well!

Charlie
 
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