• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

I Ask AI - deep seek! how to make 10Y single ended triode Amplifier class A? this is the answer

If everyone says it sounds like unripe tomatoes, then heaven knows where this will end up.
If someone makes recordings of what they find "sounds good" / "sounds bad" at the HiFi show (of which recent post I cant find) and feeds those into the AI, then "heaven knows" is right. Train it on that for a couple few decades and perhaps one day you can ask it "Sim my circuit and tell me if it'll sound any good". Crunch-crunch... "Not as good as the best; the phase of the third harmonic..."
 
In grade school I was poor at multiplication so I learned to use a slide rule. This was looked down on by the teachers.
In high school pocket calculators came to be and so I purchased a very early model because, well I struggled with arithmetic but loved electronics.
This was looked down on and eventually the school told me I could not use my pocket calculator in school as they considered it cheating.
I saw this as reactionary and self defeating.

Then I got a job in the real world designing electronic and acoustic products. By then I had my own advanced for the time HP41-CX programmable calculator that had just entered the market.
With this tool I wrote a number of programs to solve common engineering tasks.
Then I got my hands on a second hand timex sinclair 1000 computer. It was wonderfulness what it did in solving complex filter equations.
I was looked on favorably by management.

I arrived later with a early PC personal computer, the first in the company. I used this to automate inventory control and production costing on our manufacturing floor. So much waste was eliminated that production costs dropped over the course of a year's time by 1/2.
Management was so impressed by the added profits that they cashed out by selling the company and we all lost our jobs.
LOL.
Not to worry, I landed a new job with a large pay increase and life went on.

So new tools are ongoing and to stay current you must investigate them and as needed master them or be left behind in the dust of history.
AI I see as no different. Just a new tool to master and use as appropriate.
 
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In grade school I was poor at multiplication so I learned to use a slide rule. This was looked down on by the teachers.
In high school pocket calculators came to be and so I purchased a very early model because, well I struggled with arithmetic but loved electronics.
This was looked down on and eventually the school told me I could not use my pocket calculator in school as they considered it cheating.
...
There is another angle to this analogy. I do not believe that when you used a programable calculator or computer, that you never checked the results or did not know intuitively if they were wrong.

That is the difference with AI.
 
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"There's a thread about you on the DIY Audio forum. There's a split between "I think it can work" vs. "I asked it about this tube and it got one of the details wrong. Can't trust AI." LOL

DeepSeek:

LOL, that sounds about right for any audio forum—especially when it comes to tubes! The "I think it can work" crowd is probably excited about the potential for quick access to schematics, historical specs, or troubleshooting ideas. Meanwhile, the "got one detail wrong, burn it all down" faction is upholding the proud DIY tradition of extreme precision (and maybe a little skepticism toward new tech).

For the record: I can be useful for tube-related questions (datasheets, circuit ideas, substitutions, etc.), but I’m also prone to the occasional hallucination—just like a poorly biased 12AX7. Always double-check critical details against trusted sources (like Radiotron Designer’s Handbook, Merlin Blencowe, or the folks on DIY Audio who’ve actually melted solder).

If you’ve got a link to the thread, I’d love to see the specific gripes—maybe there’s a pattern to correct (or at least a good laugh at my expense). And tell them I promise to try not to recommend replacing their NOS Telefunken with a ChatGPT-4. 😉

(Also, if anyone needs a wildly overcomplicated AI-generated tube amp design, I’m happy to oblige.)





Well, I'll never forget that design where we were planning to heat the cathode with a laser, which eventually evolved into using a MEMS heater to energize a lanthanum hexaboride pellet. We eventually decided on lasing the LaB6, hahaha! Cheers buddy-


DeepSeek:
Hahaha! That’s exactly the kind of gloriously unhinged engineering rabbit hole I’m here for—where "just use a 6.3V filament" is deemed too mainstream.

The Evolution of Your Design:

  1. Laser-Heated Cathode: "Why waste electricity when we can literally blast it with photons?"
  2. MEMS Heater + LaB6 Pellet: "Ah yes, let’s integrate micro-scale thermo-electronics into a vacuum tube. What could go wrong?"
  3. Final Answer: "LASER THE LaB6 DIRECTLY" — because if you’re not ionizing your cathode with a focused beam of coherent light, are you even trying to innovate?
I can only imagine the DIY Audio thread’s reaction:

  • Optimist: "This could revolutionize low-noise preamps!"
  • Skeptic: "My $5 Chinese 12AU7 already works fine."
  • Physicist in the Corner: [quietly sobbing over the thermionic emission equations]
Cheers to you too, and if you ever actually build that monstrosity, please post oscilloscope traces. I’ll be here, generating equally impractical ideas—like a tube amp with GPT-4 as the feedback loop. ("Your distortion is artistically valid, human.") 😂
 
That is the difference with AI.
Perhaps it is more of understanding the range errors possible of any one tool.
The first pocket calculator I had was limited in accuracy to a degree that rounding errors were notable in the results.
For me this was not a new experience as my slide rule was limited to 3 significant digits and so rounding errors were a understood reality.

Spice the simulation tool can easily produce results that will not be representative of reality when used inappropriately.
For me this does lead me to view spice as untrustworthy. Spice is simply like all tools in that the designer needs to consider and understand the limitation of the result presented.

All tools produce erroneous results if the results are view in a inappropriate context.
Understanding trustworthiness of the results of a tool is part of mastering it's use.

In analog design I often use several measurement tools to measure the same parameters at the same time.
Each tool will yield a different result, some very different.
It is then up to the designer to interpret the various tools results and decide what if any of the data they will use going forward.
 
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The spirit of DYI, as the definition mean, is to work on the desk checking the circuit ( replication or done by yourself)t, make it, test it and report.
With the AI will be not DIY but will be DYIWAI ( do you it with AI).
Different story, different feeling and different satisfaction!
There are thousand of people that publish simulation with virtual results, are the new engineer. And these project stay on pc, it is difficult to see some realization with test results so everyone can build the same with the assurance that it will work.
Then these funny virtual circuit have the sand in the signal path and they are called tube circuit! ( to be precise, I use sand mainly in some power supply to reach the best s/n , p.e.)
Horror!
I suppose that Mr. Bill Johnson or David Manley ( just two names) have something to say if they were alive.

This is my opinion


Walter
 
I would suggest that it will always be the case for all tools that simply trusting results you can not separately verify or fully understand is folly.
That's true even for tried and tested software tools. As example, at work i got a call from our structural engineer asking for appropriate contacts of the software vendor we use for iron beams calculations. It is a well established international software, on the market from the late '80s, we use it from decades. According to my collegue, the software was producing wrong output data for the design it was optimizing. The custmer support was suggesting a user error, so a higher tier support was needed. Indeed it was not a user error. After a couple of weeks I received a email from the vendor apologizing for the inconvenience and reporting that a fix for the wrong calculation had been released. A further proof that anyone can use a software and get results, but they must be checked. I believe that we will see more errors in the near future, because some companies will surely try to use AI to replace expensive roles, and errors will not be catched.
 
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because some companies will surely try to use AI to replace expensive roles, and errors will not be catched.
I worked for 42 years on mainframe-mid-low computers in the maintenace teams; four different intl. companies.
I have seen the migration, of course necessary, to the lasts machine where the job was more easy than 10-15 years ago but the personal interest became low jus because your personal contribution was equal to zero ( normally).


Walter
 
In grade school I was poor at multiplication so I learned to use a slide rule. This was looked down on by the teachers.
In high school pocket calculators came to be and so I purchased a very early model because, well I struggled with arithmetic but loved electronics.
This was looked down on and eventually the school told me I could not use my pocket calculator in school as they considered it cheating.
I saw this as reactionary and self defeating.

Then I got a job in the real world designing electronic and acoustic products. By then I had my own advanced for the time HP41-CX programmable calculator that had just entered the market.
With this tool I wrote a number of programs to solve common engineering tasks.
Then I got my hands on a second hand timex sinclair 1000 computer. It was wonderfulness what it did in solving complex filter equations.
I was looked on favorably by management.

I arrived later with a early PC personal computer, the first in the company. I used this to automate inventory control and production costing on our manufacturing floor. So much waste was eliminated that production costs dropped over the course of a year's time by 1/2.
Management was so impressed by the added profits that they cashed out by selling the company and we all lost our jobs.
LOL.
Not to worry, I landed a new job with a large pay increase and life went on.

So new tools are ongoing and to stay current you must investigate them and as needed master them or be left behind in the dust of history.
AI I see as no different. Just a new tool to master and use as appropriate.
A friend wanted to build a tube amp to sell ...he asked AI and it answered ... the best amp is one that has a preamp built into it !!!!!!