Going tubes...

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Appreciate your candor- You, sir, are a free thinker...

On that note, received my "Low Quality" ChiFi kit today...

Going to requisition my teenager to help me w/ assembly...
After all, he's home from school (CV-19)… and does have my Marantz, and owes me BIG TIME- lol
 

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So, what's your point with showing blurred patent certs, and what does that prove?
You can register a patent for an ass-kicking machine:

Is this generator thing for real?

there's been a long history of these things since the beginning of the industrial revolution... not even the universe itself breaks even on the energy/entropy budget..., even though it is a "machine" that runs a lot longer than any man made machine has...
www.electro-tech-online.com
You appear to have two more patents than I do, so well done.

If you are making a claim, it's on you to provide material that backs up that claim:

Mickster said:
Would you please share links to the other sites, so we can reflect and see if we have been overly-critical?
Making a judgement of one source against another, without giving any kind of standard, is pretty meaningless.
Click to expand...

oemcar said:
Nah,
Not going to start an inter-group pissing match. What was said elsewhere shouldn't effect you...
After all, your opinion is beyond reproach- right?
Click to expand...

So this is "Ner-ner, ne, ner-ner, not telling you"? (Neener, neener, neener)?
 
Spend some quality time with your son.
 
^ seems to be some trouble doing quotes....
State your claim and defend it if you believe it to be true, or withdraw it if you believe otherwise.
 
oemcar said:
On that note, received my "Low Quality" ChiFi kit today...
Click to expand...
It looks like a fun project & I hope it works OK!

No one is arguing subjective tastes or the pleasure of building your own stuff, whether it's electronics or furniture - that's what hobbies are all about.

The only things ever in dispute are the objective (measurable) fine details of the distortion levels etc.
 
oemcar said:
Slew rates? this discussion is analog, not digital-
Click to expand...
then you need to learn more about analog amplifiers.... this isn't about digital waveforms, this is about how fast an amplifier (whether it's an op amp, or a power amp) can keep up with the input waveform. look at any spec sheet for an op amp, and you will see a slew rate spec, usually measured in volts per microsecond. there are op amps that if you try to get a full swing sine wave output above about 5khz or so, you will get a triangle wave at the output because the op amp can't slew fast enough to output a sine wave under those conditions. when you have music, this translates to intermittent intermodulation (IMD tests are done with two different frequency sine waves, usually 1khz at one volt, and 4khz at 0,25V. intermodulation distortion shows up as the presence of 3khz and 5khz signals in the output (sum and difference frequencies from nonlinear mixing of the two signals). a 741 op amp for instance has a slew rate of 0.5V/uS and trying to get a rail-to-rail output above 5khz or so doesn't produce very good sound (what makes it worse, is the slew rate isn't the same for positive going and negative going parts of the waveform).
 
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