Pro Audio Design Forum

Glad I logged in today. I was going to throw out some foil I used last night.

Or just buy a 60" monitor and run Winamp.

Looked like his kit required a lot of 0603 soldering.

You know I never had one of those funky 70s-era "color organs."

Remember the old Radio Shack and Allied Electronics color organ kits?

I can stare at Winamp's visualization for hours so you can understand why I might be drawn like a moth to one of these things.

Checkout the Aurora 18×18 Kit and PCB with audio interface.

http://www.theledart.com/blog/archives/734

Do you suppose the firmware could be modified for a vectorscope/goniometer?

Tech stuff here: http://www.theledart.com/blog/wp-conten ... c-rev2.pdf

This phenomena is already used by Schoeps in their ubiquitous FET phase splitter. Thanks ricardo. That's exactly the stage I was thinking of. This is the one? https://www.ka-electronics.com/DC_Preamp/Schoeps_Topo.jpg I see the 1G gate bias ressistor "sees" an adjustable portion of the sou...

Thanks Doug. I just glanced at this circuit while reaching for something else and it struck me: "Could the use of a current mirror linearize a FET acting as a shunt attenuator?" I realize the topology above is not correct and that techniques providing feedback from the source to the gate t...

GE's website now has several new A19 LED offerings including dimmables: http://www.waynekirkwood.com/images/pdf/GE_LED_A19_08162012.pdf There's now an 800 lumen 13W dimmable the 65386 in the same form-factor as the 62180. GE has also announced a 1600+ lumen 27W "100W replacement" using act...

I've got the Interdesign Book. Learned a lot from that book.

Camezind's book "Designing Analog Chips" is here: http://www.ka-electronics.com/images/pd ... _Chips.pdf

SAN FRANCISCO--Hans Camenzind, the Swiss emigre analog guru who invented one of the most successful circuits in electronics history and introduced the concept of phase-locked loop to IC design, passed away in his sleep at the age of 78. Another analog guru passes. Is there anyone alive practicing t...

The figures for this article have disappeared from the Electronic Design archive leaving only the text. I've reconstructed the original article and its figures for posterity. Thank you Dimitri for all of your work. I didn't want this one to disappear. Wayne, November 2018. "JFET Follower Ampli...