done with love.
Hint - this is not a place to argue theoretical physics. There are people here with brains the size of a planet (I'm not one of them...) and strong contra-opinions tend to get seriously exposed and ridiculed, especially when they come with a side-order of anti-establishment paranoia.
If however you come along with some new design insight you want to share and debug, or relevant questions from the mundane to the esoteric on the subject of audio and especially tubes, its the best place in the world.
Hint - this is not a place to argue theoretical physics. There are people here with brains the size of a planet (I'm not one of them...) and strong contra-opinions tend to get seriously exposed and ridiculed, especially when they come with a side-order of anti-establishment paranoia.
If however you come along with some new design insight you want to share and debug, or relevant questions from the mundane to the esoteric on the subject of audio and especially tubes, its the best place in the world.
aardvarkash10
I bow to your advice.
I have paper on my walls too
Items that I am very proud of.
I must stop being side track by non subject items.
And get on with this thread, building the preamp. I only wanted to share.
Not be challenge at very turn.
As I stated earlier, it is a simple preamp with tight fitting values. Nothing special at all, a new twist to an old subject. I will post the drawing and the photos in about two weeks if not earlier.
I laid up the case an hour ago, it is set up in clamps. I have the wires, cables, and hardware set out as well. I must purchase one last minute item, since I changed the overall layout. Once it is put together I will post the preamp and start the final assembly of the power supply. I have some ideas that I want to work out in my layout.
Take Care
Ivey
I bow to your advice.
I have paper on my walls too
Items that I am very proud of.
I must stop being side track by non subject items.
And get on with this thread, building the preamp. I only wanted to share.
Not be challenge at very turn.
As I stated earlier, it is a simple preamp with tight fitting values. Nothing special at all, a new twist to an old subject. I will post the drawing and the photos in about two weeks if not earlier.
I laid up the case an hour ago, it is set up in clamps. I have the wires, cables, and hardware set out as well. I must purchase one last minute item, since I changed the overall layout. Once it is put together I will post the preamp and start the final assembly of the power supply. I have some ideas that I want to work out in my layout.
Take Care
Ivey
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kavermei
You have every right to disagree.
Please give me your insight. I want to learn.
Take Care
Ivey
You have every right to disagree.
Please give me your insight. I want to learn.
Take Care
Ivey
Forget every valve with a 12 at the front. Pick something linear. eg. 5867. Or if you're really theory, just whack a 45 in and be done.
There's been a bunch of work done hunting down linear./low-odd-order-harmonic valves. Google Lynn Olson for a middle-of-the-road approach.
Ivey,
science is not about opinion and disagreement. You either (a) have a good reason to doubt established science (say, outcomes of an experiment which seem to contradict its theories) or (b) accept the established theories for what they are -- models which agree with all past & current, and some future, experiments.
Spreading frivolous and demonstrably wrong theories or facts to readers and members here (some of who might take it at face value) is not productive.
You may find insight in any good textbook on classical mechanics, electromagnetism or electronics.
I'm sure you did. Please, do show us a schematic of your compound scattering canceling preamp, and tell us how it works. I'm sure people will be genuinely interested then.
Kenneth
science is not about opinion and disagreement. You either (a) have a good reason to doubt established science (say, outcomes of an experiment which seem to contradict its theories) or (b) accept the established theories for what they are -- models which agree with all past & current, and some future, experiments.
Spreading frivolous and demonstrably wrong theories or facts to readers and members here (some of who might take it at face value) is not productive.
You may find insight in any good textbook on classical mechanics, electromagnetism or electronics.
I'm sure you did. Please, do show us a schematic of your compound scattering canceling preamp, and tell us how it works. I'm sure people will be genuinely interested then.
Kenneth
kavermei
That is not what I stated!
Compound scattering is when one electron is freed and crash into another, and another, freeing electrons. These electrons soon leave their confines and develop a space charge around the filament.
As long a heat is applied to the filament, this action continues.
All vacuum tubes works on this principle.
What is your theory Kenneth?
Take Care
Ivey
That is not what I stated!
Compound scattering is when one electron is freed and crash into another, and another, freeing electrons. These electrons soon leave their confines and develop a space charge around the filament.
As long a heat is applied to the filament, this action continues.
All vacuum tubes works on this principle.
What is your theory Kenneth?
Take Care
Ivey
That's what normal people call 'thermionic emission'. It's part of a 'theory' called 'solid state physics'. It's not 'my' theory.
...
...
kavermei
Yes, Kenneth that is totally correct, thank you
And that is what I said earlier on this thread that it was called "Thermionic Emission". Commonly know in my field as "Compound Scattering".
Dr Bohr, a Danish professor of physics in 1913, proved that electrons had multi states. A ground state and an excite state, where they went sun white hot as they are freed from their orbit. Giving the electron two energy levels.
There are writings from Dr Ing G. Herrmann and Dr Phil S. Wagner on "Oxide Coated Cathode" that speaks towards compound scattering or Thermionic Emission. Dealing with the coating of chemicals used to extend cathode life and increase electron emissions.
But one of the best books is by Herbert Reich "Principles of Electron Tubes" and let us not forget Dr. Langford Smith. "Radiotron Designer Handbook"
You can get these books free off the web if you like, Kenneth
I do know what I speak about, because I do not like to make a fool out of myself.
Take Care
Ivey
Yes, Kenneth that is totally correct, thank you
And that is what I said earlier on this thread that it was called "Thermionic Emission". Commonly know in my field as "Compound Scattering".
Dr Bohr, a Danish professor of physics in 1913, proved that electrons had multi states. A ground state and an excite state, where they went sun white hot as they are freed from their orbit. Giving the electron two energy levels.
There are writings from Dr Ing G. Herrmann and Dr Phil S. Wagner on "Oxide Coated Cathode" that speaks towards compound scattering or Thermionic Emission. Dealing with the coating of chemicals used to extend cathode life and increase electron emissions.
But one of the best books is by Herbert Reich "Principles of Electron Tubes" and let us not forget Dr. Langford Smith. "Radiotron Designer Handbook"
You can get these books free off the web if you like, Kenneth
I do know what I speak about, because I do not like to make a fool out of myself.
Take Care
Ivey
badman
Sadly ..., but I agree.
When my parents sent me to college in 1948, there were no student loans like there were in the 1960's and 70's and 80's.
Failure was one of the worse things that you could do. Waste the families fortune. Because college was and is expensive.
We had radio, television was $1500.00 dollar items for a 5" screen. So we filled those spare hours with study and more study.
Being Jewish, it was hard at U of Penn. I did not have a great night life. So I did all I could to get into the Eimac computer program. A computer the size of a garage/ with 256 bits of output and growing bigger and bigger.
I studied everything I could on electronics, physics, english, and business.
Being in engineering school was even harder. Guys there, had parents with twice the funds that mine had. And it was hell pay if you got in their way.
I studied "cold fusion" and saw that we needed to study the sun more closely if we wanted to be successful.
Now I get reports from my fellow professor friends, on the magnetic theory that keeps that thing together. It is huge!!!!!!!!!!!!!
The heat and radiation produce will be difficult to control. With some form good shielding.
I was hired to go to California, out in the boontiees, when no one live there and aid in the construction of two nuclear reactors. One liquid cool the other sodium cool. Needless to say, they nearly melted down the sodium reacator. When I returned to that area 27 years later, they had built a whole new community around that site. No told those people about what happen there 27 years ago.
In 1974, I was on a mission with one of the US Navy's finest. I nearly died.
Hell we all nearly died!!!!!
They lost total control. If it was not us techs on board. It would have been history @ 35,000 feet deep.
I retired in 1992 and again in 2007. for the final and last time. No more call backs for me.
People do not train properly today. And video games are not what I consider proper educational tools. Simulators are o.k, to a point. But to me, nothing surpass study, practice and hands on.
Someone stated in this thread that a transformer.., transforms. I do not understand that statement. A transformer is a inductor, with or without a core or magnet form. Transformers aid in determining freq. in R/XL circuits. Electron tubes amplify signal freq voltage, it does not determine the freq. Some electron tube does a better job at it than others. But that is all. Unless I missed something through the years.
Thank You
Take Care
Ivey
Sadly ..., but I agree.
When my parents sent me to college in 1948, there were no student loans like there were in the 1960's and 70's and 80's.
Failure was one of the worse things that you could do. Waste the families fortune. Because college was and is expensive.
We had radio, television was $1500.00 dollar items for a 5" screen. So we filled those spare hours with study and more study.
Being Jewish, it was hard at U of Penn. I did not have a great night life. So I did all I could to get into the Eimac computer program. A computer the size of a garage/ with 256 bits of output and growing bigger and bigger.
I studied everything I could on electronics, physics, english, and business.
Being in engineering school was even harder. Guys there, had parents with twice the funds that mine had. And it was hell pay if you got in their way.
I studied "cold fusion" and saw that we needed to study the sun more closely if we wanted to be successful.
Now I get reports from my fellow professor friends, on the magnetic theory that keeps that thing together. It is huge!!!!!!!!!!!!!
The heat and radiation produce will be difficult to control. With some form good shielding.
I was hired to go to California, out in the boontiees, when no one live there and aid in the construction of two nuclear reactors. One liquid cool the other sodium cool. Needless to say, they nearly melted down the sodium reacator. When I returned to that area 27 years later, they had built a whole new community around that site. No told those people about what happen there 27 years ago.
In 1974, I was on a mission with one of the US Navy's finest. I nearly died.
Hell we all nearly died!!!!!
They lost total control. If it was not us techs on board. It would have been history @ 35,000 feet deep.
I retired in 1992 and again in 2007. for the final and last time. No more call backs for me.
People do not train properly today. And video games are not what I consider proper educational tools. Simulators are o.k, to a point. But to me, nothing surpass study, practice and hands on.
Someone stated in this thread that a transformer.., transforms. I do not understand that statement. A transformer is a inductor, with or without a core or magnet form. Transformers aid in determining freq. in R/XL circuits. Electron tubes amplify signal freq voltage, it does not determine the freq. Some electron tube does a better job at it than others. But that is all. Unless I missed something through the years.
Thank You
Take Care
Ivey
badman
On a much more lighter side of that quote you posted.
It reminds me of that Brad Pitt movie, where Hitler is yelling
Nein, nein, nein, nein..., nein!!!!!!!!! At one of his generals.
Well we all know where that lead Germany.
Just a thought.
Take Care
Ivey
On a much more lighter side of that quote you posted.
It reminds me of that Brad Pitt movie, where Hitler is yelling
Nein, nein, nein, nein..., nein!!!!!!!!! At one of his generals.
Well we all know where that lead Germany.
Just a thought.
Take Care
Ivey
Mr. Ivey, just ignore them. No matter what you do , some ******* somewhere will bitch and moan.
Ooooh. Comparing SY to Hitler. That's really not a good thing...
I say my farewells now.
John
Well, it's to late for that now isn't it? 😉
Seriously, your opinions are so wrong it's hard to know where to start.
BTW, Why do you lay out the preamp first and put up the schematic later? I mean, you DO have a schematic, do you?
jd
They're just giving their opinions. Nothing wrong with that. By the way Teddy is a lucky guy. The world is full of crashing bores, Ivey isn't one of them.
Yes, teddy is a very lucky guy. 
It just bothers the hell out of me that some people have to leave their mark on every single thread.
"if you dont have something nice to say..."
It just bothers the hell out of me that some people have to leave their mark on every single thread. "if you dont have something nice to say..."
that aside, he and naysayers like him are not wanted in this thread. mod or not.
if you cannot say something nice, it is always best to keep quiet.
I don't care what a body's educational level is, where they fit in the academic hierarchy, what position they hold. it means nothing..nothing
how they act....that's the important thing.
from where I sit, "SY" started this onslaught of Sturm und Drang..
not appreciated.
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