Description
The “No Nonsense” series of amateur radio license study guides has become famous for helping people pass the tests. Written in a simple, easy-to-understand style, this study guide will help you upgrade to Amateur Extra Class in no time. I guarantee it! If this book doesn’t help you pass the test, I’ll give you your money back.
Here’s a sample of the text:
Calculating the gain and output voltage of an op amp circuit is relatively straightforward. The gain is simply RF/Rin. In the op amp circuit shown in Figure E7-3, Rin = R1. The output voltage of a circuit is then the input voltage times the gain.
QUESTION: What magnitude of voltage gain can be expected from the circuit in Figure E73 when R1 is 10 ohms and RF is 470 ohms? (E7G07)
ANSWER: 47
If R1 is 10 ohms and RF is 470 ohms, the gain is 470/10, or 47.
While the gain of an ideal operational amplifier does not vary with frequency, op amps in the real world do have a finite bandwidth. Some modern op amps can be used at high frequencies, but many of the older ones can’t be used at frequencies above a couple of MHz. To find out if you can use an op amp at the frequency of your signals, check out the gain-bandwidth specification. The gain-bandwidth specification is the frequency at which the open-loop gain of the amplifier equals one.
QUESTION: How does the gain of an ideal operational amplifier vary with frequency? (E7G08)
ANSWER: It does not vary with frequencyQUESTION: What is the gain-bandwidth of an operational amplifier? (E7G06)
ANSWER: The frequency at which the open-loop gain of the amplifier equals one
NOTE: This is the PDF version. The No Nonsense Extra Class License Study Guide is also available for the Amazon Kindle (and Kindle reader apps). Smart flash cards are also available. This book will also be available soon for the Barnes&Noble Nook (ePub) and as paperback directly from Amazon. If you want any of those versions, shoot me an email, and I’ll let you know when they are available.
Greg Horwitz –
Your study guides helped me get my technician and general licenses. It’s time that I up my game once again.
Thanks Dan,
Greg
Richard J Newell –
Question regarding the PDF version: Compared to the paperback print version, how many “pages” are there in the PDF version? I would think there are a few less pages than the print version which has a frontispiece and a few other unnecessary pages.
Dan KB6NU –
There are 174 pages in the PDF version. The biggest reason that there are fewer pages in the PDF version is the form factor. The print version is 6″ x 9″, while the PDF version is 8.5″ x 11″.
Ted –
This study guide was great for the tech and general but I’ve been disappointed with my purchase of the Extra class study guide. I purchased this two weeks ago and have yet to receive it. I have reached out to KB6NU via email twice with no response. Hope you have better luck than I did.
Scott B (verified owner) –
Been 10 years, time to get Extra license, took more study time then expected, but I passed. Downloaded PDF immediately after buying it. Very helpful passing test. Thank you‼