Paul's Posts

More from Paul

1. The good, the bad and the uglyWith apologies to Clint Eastwood and any fans of the Italian cowboy genre known as Spaghetti Westerns, let's take a look at what's good, bad and...July 18, 2012
2. Just a touch of gainIn yesterday's post we covered a tough subject: the differential pair that serves as our input to the op amp. From here it gets a lot...July 17, 2012
3. Diff pairsNote: Some images originally referenced in this article are no longer available. Yesterday's post covered common mode rejection, how it works what it is and what...July 16, 2012
4. Common mode rejectionIn yesterday's post we saw how easy it is to design with an IC op amp. All you need are two resistors and two 9 volt...July 15, 2012
5. How to design an op ampLet's start today's post by showing you how easy it is to design an amplifier circuit with an op amp. When an op amp is used...July 14, 2012
6. Looking deeperYesterday I explained why use of the (then) new category of IC op amp was so darned attractive back in the 1970's and still is today:...July 13, 2012
7. Op ampsI promised yesterday we'd get started understanding op amps. I know some of you already get them so I hope you can tolerate some simple explanations....July 12, 2012
8. The man who designed everythingIn yesterday's post I mistakenly called the great David Hafler "Bob". Oops, I think I had "Bob" on the brain. Sorry. But speaking of history, I...July 11, 2012
9. The mayor of Silicon ValleyWhen we first started PS Audio back in the dark ages of the early 1970's there was no such things as email, the World Wide Web...July 10, 2012
10. We got no op amps in here bossI am always amused when I read in a manufacturer's marketing description that they don't use op amps in their audio designs - when what they...July 9, 2012
11. StereoThis is the final in our little series on live vs. recorded. We've ben discussing recordings and how it is that with some types of recordings...July 8, 2012
12. PonderingYesterday I proposed a thought problem once again. This time we compared the direct output of a stereo microphone vs. the recorded output of that same...July 7, 2012
13. Whoa NellieYesterday's post got quite a few of you riled up when I suggested a guitar pickup is just as sensitive to transients and subtle details and...July 6, 2012