Scott, please don't make a fool of yourself. Read Terman: 'Electronic and Radio Engineering' pp 159-165. Surely, your office library has a copy. Put up, or shut up, please. ;-)
I am ready to shoot the messanger, for the crime of Physics slaughter, in which supposingly the messanger has a degree.
Anything you say, can and will be used... I may upgrade the charge to first degree murder.
No, Scott, don't waste your time calling Dick Sequerra, even though he would tell you also that it is a cavity resonator. He likes you for who you are, not what he could teach you. He would have you more comfortable, and in the dark, rather than uncomfortable in the light.
Thanks - and I have appreciated your sense of humour in the 1st post of this thread. I had not laughed that much for long 🙂
Hopefully, hes not the only one Scott 😉
I thought you guys were supposed to be the most knowledgeable about this technical stuff, and this is what we get?
Doug's 4th edition of Amplifier Handbook
I would like to cite from 4th edition of the Self's book:
/beginning of citation/ "This offers us the interesting possibility that crossover distortion - which has hitherto appeared inescapable - can be reduced to an arbitrary level simply by paralleling enough transistors. To the best of my knowledge this is a new insight" /end of citation/
Page 143, Elsevier 2006, 2008. Audio Power Amplifier Design Handbook.
This is a typical stage 3 😀😀
I would like to cite from 4th edition of the Self's book:
/beginning of citation/ "This offers us the interesting possibility that crossover distortion - which has hitherto appeared inescapable - can be reduced to an arbitrary level simply by paralleling enough transistors. To the best of my knowledge this is a new insight" /end of citation/
Page 143, Elsevier 2006, 2008. Audio Power Amplifier Design Handbook.
This is a typical stage 3 😀😀
noise
Hi John,
Normally I trust measurements more than my ears. But during reading your comment, I suddenly remembered the moment when I said **** you to my boss! It happened a long time ago. I was asked to design a pink noise generator. So I built a pseudo random generator, took a (24 bits?) SR plus a couple of XOR gates and wired the stuff as prescribed by the recipes from the mainstream literature in order to get the max. length sequence (i.e. 2^N-1).
What happened? Every 3 seconds I heard a kind of 'hiccup'. So I modified the FB circuit. Now the hiccup has gone and the generator sounded like real noise. However, the max. length sequence was shortened by 25%. So what, I thought. But the PhD's yelled at me: that's not random! Nevertheless, that noise generator went into production.
C.E.
Hi John,
Normally I trust measurements more than my ears. But during reading your comment, I suddenly remembered the moment when I said **** you to my boss! It happened a long time ago. I was asked to design a pink noise generator. So I built a pseudo random generator, took a (24 bits?) SR plus a couple of XOR gates and wired the stuff as prescribed by the recipes from the mainstream literature in order to get the max. length sequence (i.e. 2^N-1).
What happened? Every 3 seconds I heard a kind of 'hiccup'. So I modified the FB circuit. Now the hiccup has gone and the generator sounded like real noise. However, the max. length sequence was shortened by 25%. So what, I thought. But the PhD's yelled at me: that's not random! Nevertheless, that noise generator went into production.
C.E.
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I also hoped that you learned something, PMA, you are pretty good, when I can finally make a 'breakthrough' with you, better than most.
I know them, typically single crystal pure sapphire resonant disks are needed for Q > 10,000. In this case they are a bargain. That thing with all those surface irregularities and a piece of ordinary #14 wire through it has a Q of many thousands at GHz frequencies? Why insult our intelligence this way?
I know what the bear is doing now.
"Rust (missing underseal)"
That was the next one, 1988 fire engine red Suburban. The rust out started as you drove off the lot. This one was cursed too, delivered with a door that could not close, it lost its transmission after a month (had to tow a trailer 135mi. in first gear).
That was the next one, 1988 fire engine red Suburban. The rust out started as you drove off the lot. This one was cursed too, delivered with a door that could not close, it lost its transmission after a month (had to tow a trailer 135mi. in first gear).
The alternative could be fixing the FB logic; what you got (the hiccup) is a classic problem of logic hazard, pretty common in implementing linear feedback shift registers with long GF(2) primitive polynomials.
Happened to have the same problem in a student project (1979). The teacher showed me how to optimize the FB implementation to avoid hazard. Not always (and/or necessary) easy.
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