Bob Cordell's Power amplifier book

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#603
Edmond Stuart said:
Hi Bob,

I'm glad the show is going very well and give my best regards to Jan. :cheers:



I'm not sure whether Ray de Velder is indeed referencing to this phenomenon. There are other schemes as well that produces distortion. For example, when feedback is taken from an output that's not free from switching residuals.

Cheers,
E.
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Good point. It would be nice if Ray could email me and elaborate and make it more clear just what he is referring to. I don't know if Ray is on this forum. There is a lot going on in class D amps, and a lot of the shortcomings depend on the type of modulator technique being used. I'll be the first to agree that I probably missed some things in my coverage, and hope to incorporate a lot more on class D when I do the second edition of the book.

Cheers,
Bob
 
#605
Bob Cordell said:
This show gets better every year. Jan and I really enjoyed it, and we highly recommend it to any of you who can make it next year.

Jan and I will also be exhibiting at the AES Convention early next month. We'd love to have you stop by and say hello if you are in the San Francisco area.

Cheers,
Bob
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Yes please do. And I want to say how great it was to meet Bob and his better half and spend a few great days together.

And BTW, if you're coming to Burning Amp, I'll be there as well!

jan didden
 
#606
Just back from Austin -- my wife said that, on the plane, there were people walking back and forth in the aisle, looking at the book while I was underlining various passages. I wish BC had written my organic chemistry text instead of Morrison and Boyd.

I had wondered for years why more and more bias didn't make things better and better, just hotter and hotter.

By the way, Austin is a city "vaut la voyage" --the place absolutely rocks.
 
#614
jackinnj said:
Just back from Austin -- my wife said that, on the plane, there were people walking back and forth in the aisle, looking at the book while I was underlining various passages. I wish BC had written my organic chemistry text instead of Morrison and Boyd.

I had wondered for years why more and more bias didn't make things better and better, just hotter and hotter.

By the way, Austin is a city "vaut la voyage" --the place absolutely rocks.
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Hi Jack,

Thanks for those kind words. It makes my day to hear someone say that I've made something easier to read and understand. Too bad you didn't have a carton of the books to sell to the people on the plane 🙂. I'll bring a carton to the meeting this Sunday.

What brought you to Austin?

Cheers,
Bob
 
#617
Great fun hanging out and basking in the reflected glory of Bob, and Jan Didden behind their book-selling table at RMAF.

Just EVERY technically oriented person at the event had to stop by the table and chat. Names you know! Especially around here..

And pretty much everyone at the show who I talked to in elevators and demo rooms knew of diyAudio, so I got a bit of celebrity glow too!

Mark
 
#619
Variac said:
Great fun hanging out and basking in the reflected glory of Bob, and Jan Didden behind their book-selling table at RMAF.

Just EVERY technically oriented person at the event had to stop by the table and chat. Names you know! Especially around here..

And pretty much everyone at the show who I talked to in elevators and demo rooms knew of diyAudio, so I got a bit of celebrity glow too!

Mark
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Hi Mark, Thanks!

It was really great meeting you in person and I enjoyed our conversations. The RMAF was a great ride this year. If I ever need a place to crash in San Francisco I'll know where to go. I hope you'll stop by the booth at AES and re-connect with Angela and I.

I also enjoyed seeing Charles Hansen and chatting with him. His $20K preamp is gorgeous, milled from a block of aluminum. I was told it takes 6-10 hours on the machine to mill.

Cheers,
Bob
 
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