Left Border Content - RF Cafe
RF Cascade Workbook 2018 by RF Cafe
Res-Net Microwave - RF Cafe
 

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:

AirplanesAndRockets.com

Header Region - RF Cafe
Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes App Notes Calculators Education Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising RF Cafe Homepage Thank you for visiting RF Cafe!
Sub-Header - RF Cafe Exodus Advanced Communications Best in Class RF Amplifier SSPAs

The Radio Boys Adventure Book Series
Kirt's Cogitations™ #323

RF Cafe University"Factoids," "Kirt's Cogitations," and "Tech Topics Smorgasbord" are all manifestations of my rantings on various subjects relevant (usually) to the overall RF Cafe theme. All may be accessed on these pages:

 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36

The Radio Boys book covers - RF Cafe

The first four covers of "The Radio Boys" adventure book series. (radioboysandgirls.org image)

For many years Melanie and I have been collecting and reading The Radio Boys series of thirteen books, which were written in the 1920s by Allen Chapman. It was a time in history when the miracle of radio communications was capturing - even enrapturing - the public with its seemingly miraculous ability to convey messages across town and around the world without the need for wires, hence "wireless." The stories center around four teenage buddies, namely Bob Layton, Joe Atwood, Herb Fennington, and Jimmy Plummer (aka Doughnuts") who, with the assistance of a local pastor, Dr. Dale, took an avid interest in radio and built from scratch a successful crystal radio. Their enthusiasm compounds upon itself as adventures and experiences using wireless foster interest in building better receivers and then building transmitters for sending Morse code and audio ("phone").

In order to appeal to his intended audience - primarily young boys - villains, good guys, hapless bystanders, government agents, local law enforcement, family, and even the occasional damsel in distress are woven into the fabric of tales from book to book. The Radio Boys fit in well with the teenager adventure genre that included The Hardy Boys, Nancy Drew, and Tom Swift, all of which we own many volumes. Ours are the original prints rather than some that were re-printed decades later. They are not very expensive it you are willing to accept less than perfect condition and maybe without a dust jacket.

In addition to telling a good story, Chapman is sure to include instruction on materials and methods through conversations between the boys and their fellow radio enthusiasts (both youths and adults) and with descriptions of homemade tapped tuning coils, antennas, enclosures and even speakers. Additionally, mention was made of many innovations of the day, including Lee DeForest's Audion vacuum tube, high voltage generators using rectifier tubes, regenerative circuits, and multi-element antennas. Many readers interested only in the adventure content are unwittingly tricked into learning something about wireless in the process.

An example of the aforementioned is a statement made by the principal (Mr. Preston) of the Clintonia High School to the Radio Boys after having recently listened to a speech given by President Calvin Coolidge* whilst in Washington, D.C. After the boys stated they had listened to the speech live on the radio, Principle Preston asserted that the boys had actually heard the speech before he did, even though they were a couple hundred miles away and he was only a hundred feet away in the audience. How could that be so, queried the boys?

Replied the principal, "And if you had been thousands of miles away, what I said would still be true." "No doubt there were farmers on tractors out on the Western plains who heard him before I did." Puzzled looks filled their collective faces. Then, he continued.

"You see it's like this. Sound travels through the air to a distance of a little over a hundred feet in the tenth part of a second**. But in that same tenth of a second that it took the president's voice to reach me in the open air, radio could have carried it eighteen thousand six hundred miles***." "...I never thought of it in just that way before," responded Bob. "Equal to about seven and a half time around the earth," observed the principal, smiling, "In other words, the people who were actually sitting in the presence of the president were the very last to hear what he said." "Radio is the fairyland of science in the sense that it is full of wonder and romance." He expounds even further, but you'll need to read the book to continue the lesson.

You might want to visit "TheRadioBoysAndGirls.org" website for a brief description of each book, along with a hyperlink to read a Kindle version for free or to purchase a hard copy.

There is also a book series entitled The Radio Girls, written by Margaret Penrose, set in the same post-world War I era. Only four editions were printed, and we own two of them, all purchased on eBay. They are typically more expensive than The Radio Boys books.

* Warren G. Harding, who preceded Coolidge, is said to be the first president to have made a radio address.

** Sound travels at sea level at 1125 feet per second, or 112.5 feet per 1/10th second (at 20 °C).

*** Radio waves travel at 186,000 miles per second, or 18,600 miles per 1/10th second.

 

<Previous                     Next>

 

 

Posted December 1, 2020

Footer - RF Cafe RIGOL Technologies (electronics test equipment) - RF Cafe
Right Border Content - RF Cafe
ConductRF Precision RF VNA Test Cables - RF Cafe
LOTUS Communications Systems Modular RF Component Building Blocks - RF Cafe
 

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free