Search found 263 matches

by KirtB
Thu Aug 17, 2017 8:05 am
Forum: Amateur Radio
Topic: Put Your Aerial Underground
Replies: 0
Views: 7

Put Your Aerial Underground

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/put-your-aerial-underground-short-wave-craft-feb-1935.gif Put Your Aerial Underground, February 1935 Short Wave Craft Burying any antenna in the ground seems like a bad idea from radiated field pattern and efficiency perspectives. As det...
by KirtB
Thu Aug 17, 2017 8:04 am
Forum: Components, Circuits & Systems
Topic: Radio Service Data Sheets
Replies: 0
Views: 4

Radio Service Data Sheets

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/majestic-model-25-radio-service-data-sheet-short-wave-craft-feb-1935.gif Majestic Model 25 - 9-Tube Twin-Detector Radio Service Data Sheet, February 1932 Radio-Craft Once again I have given selflessly and freely of my time and talent to ...
by KirtB
Thu Aug 17, 2017 8:03 am
Forum: Articles & Ads from Electronics Magazines
Topic: Magnetic Hammer
Replies: 0
Views: 4

Magnetic Hammer

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/magnetic-hammer-electronics-world-jan-1965.gif Magnetic Hammer, January 1965 Electronics World If you ever have the opportunity to read the history of the engineering efforts that went into designing and building the Saturn V rocket, you...
by KirtB
Thu Aug 17, 2017 8:01 am
Forum: Articles & Ads from Electronics Magazines
Topic: Report on the European Radio Industry
Replies: 0
Views: 4

Report on the European Radio Industry

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/report-european-radio-industry-radio-news-may-1946.gif Report on the European Radio Industry, May 1946 Radio News By 1946, radio and television manufacturers were scurrying to supply the huge, pent-up demand for communications and entert...
by KirtB
Thu Aug 17, 2017 8:00 am
Forum: Press Releases & Industry Announcements
Topic: Sivers IMA Demonstrates Next Generation Converters
Replies: 0
Views: 4

Sivers IMA Demonstrates Next Generation Converters

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/sivers-ima-converters.gif Sivers IMA Demonstrates Next Generation Converters Sivers IMA today announced that they are launching the next generation converters for E- and V-band radio links. The new generation converters are based on the ...
by KirtB
Thu Aug 17, 2017 7:59 am
Forum: Anecdotes, Gripes, & Humor
Topic: Electronics-Themed Comics
Replies: 0
Views: 4

Electronics-Themed Comics

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/electronics-comics-oct-1944-radio-craft-p68.gif Electronics-Themed Comics - October 1944 & May 1945 Radio-Craft It's Friday again already (...finally). In that these comics from Radio-Craft magazine have an electronics theme, you can cla...
by KirtB
Thu Aug 17, 2017 7:58 am
Forum: Articles & Ads from Electronics Magazines
Topic: Chinese Vacuum Tubes
Replies: 0
Views: 4

Chinese Vacuum Tubes

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/chinese-vacum-tubes-radio-news-oct-1945.gif Chinese Vacuum Tubes, October 1945 Radio News 1945 or 2015? Seventy years have passed since this photo of a vacuum tube manufacturing facility in China was taken. Given that most new vacuum tub...
by KirtB
Thu Aug 17, 2017 7:57 am
Forum: Articles & Ads from Electronics Magazines
Topic: Electroluminescence: Theory and Practice
Replies: 0
Views: 4

Electroluminescence: Theory and Practice

http://www.rfcafe.com/miscellany/homepage-archive/2015/images/electroluminescence-theory-practice-electronics-world-jan-1965.gif Electroluminescence: Theory and Practice, January 1965 Electronics World Electroluminescent (EL) devices were patented by General Electric back in 1938, but it was not un...
by KirtB
Wed Aug 16, 2017 8:22 pm
Forum: Anecdotes, Gripes, & Humor
Topic: Comic with an Electronics Theme
Replies: 0
Views: 4

Comic with an Electronics Theme

http://www.rfcafe.com/miscellany/homepage-archive/images/tech-comic-popular-electronics-june-1972.gif Comics with an Electronics Theme, June 1972 Popular Electronics Close out this Wednesday with a tech-themed comic from a 1972 issue of Popular Electronics magazine. Those of you who entered the eng...
by KirtB
Wed Aug 16, 2017 11:54 am
Forum: Components, Circuits & Systems
Topic: The Truth About FM
Replies: 0
Views: 102

The Truth About FM

http://www.rfcafe.com/miscellany/homepage-archive/images/fm-truth-about-electronics-world-august-1969.gif The Truth About FM, August 1969 Electronics World Author Thomas Haskett uses this space in a 1969 issue of Electronics World to clear up misconceptions about how stereo FM radio broadcasts are ...