Welcome to the RF Cafe Website

Search:                 | Sitemap

About RF Cafe | Homepage Archive

Kirt Blattenberger (KB3UON)

Advertise on RF Cafe (Advertisers)

RF Cafe Live Blog | Forums

Copyright 1999-2030

Electronics & RF | Mathematics

Physics & Mechanics | Quotes

Crosswords | Humor | Podcasts

Quizzes | Cogitations | Articles

Parts & Services | Videos

Radar Handbook | Cool Things

Selected Vintage Magazine Articles

Electronics World | Radio-Electronics | OFA

Radio & TV News | QST | Popular Science

Popular Mechanics | Radio-Craft | Electronics

Popular Electronics  | Mechanix Illustrated

Short Wave Craft | Saturday Evening Post

RF & Electronics Symbols for Visio & Office

RF & Electronics Stencils for Visio

RF Cascade Workbook | Espresso Workbook

Anatech Electronics RF Microwave Filters - RF Cafe
DC-70 GHz RF Cables - RF Cafe

Burgess Battery Company Advertisement
January 1941 QST

January 1941 QST

January 1941 QST  Cover - RF CafeTable of Contents

Wax nostalgic about and learn from the history of early electronics. See articles from QST, published December 1915 - present (visit ARRL for info). All copyrights hereby acknowledged.

Before there were electric generators onboard airplanes to power communications equipment, aviators relied on storage batteries to operate their radios. Before that, there were no radios at all aboard airplanes. Although Wilbur and Orville Wright first piloted their Wright Flyer in 1903, by the end of the decade airplanes were becoming a common sight across the country and across the civilized world. By the middle of the second decade experiments were being done with airborne radio. They were heavy vacuum tube units with heavy lead-acid batteries. Antennas sometimes hundreds of feet long needed to be reeled out and in once at altitude. The earliest transmitter (for 2-way communications) were spark gap types, meaning of course Morse code was the medium. That's right, the pilot - often alone without an assistant - sent messages by tapping out dits and dahs using a straight key strapped to his thigh. Moving into the 1920s, radio telephony had become standard equipment aboard transport and military aircraft. Much of it early-on was battery powered. This 1941 issue of the ARRL's QST magazine contains an advertisement by the Burgess Battery Company celebrating the 20th anniversary of transcontinental airmail service, along with touting their role in accommodating the business by supplying batteries for airborne radios. Most of the earliest airmail pilots flew with no radio - even on routes over the Rocky Mountains.

If you are interested in vintage airplanes, you might want to read about the ride Melanie and took in the Ford Tri-Motor airliner that visited Erie airport back in 2013.

Burgess Battery Company Advertisement

Burgess Battery Company Advertisement, January 1941 QST - RF CafeBurgess Salutes United on 20th Anniversary of Transcontinental Airmail

Coast-to-coast airmail service recently celebrated its 20th birthday, and of course, United Air Lines was "all dressed up" for the occasion. Above is Capt. Jack Knight veteran United pilot, who made the first night airmail flight in history. The Burgess Battery Company is proud of its opportunity to serve airmail development, having supplied Burgess Radio Batteries as exclusive standard equipment for several years on all United Air Lines planes. Below, a United maintenance man installs a Burgess Battery in the auxiliary radio equipment - the "safety" equipment which must operate immediately and unfailingly if the regular equipment should fail.

Airway Radio was in the experimental stage when this picture was taken of radio engineers and post office officials along with Captain Jack Knight of United (in center with short leather coat).

Built for War, this DeHaviland plane became a mail carrier on the first coast-to-coast airway in 1920. Note open cockpit and ancient Model-T touring car in background.

"Tin Goose" was the nickname given the tri-motored Ford when these planes were introduced to the coast-to-coast airway. Note how the mail compartment in the wing was lowered for loading.

4 Times Faster than 1920 is this huge three-mile-a-minute "Main-liner" which carries air mail cross-continent in 16 hours. Burgess Batteries assure positive operation of emergency radio equipment under all circumstances.

Burgess Battery Company, Freeport, Illinois



Posted July 6, 2020

Copper Mountain Technologies (VNA) - RF Cafe

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

1996 - 2024


Kirt Blattenberger,


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 tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

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 | My Daughter's Website: EquineKingdom

RF Cascade Workbook 2018 by RF Cafe

Amplifier Solutions Corporation (ASC) - RF Cafe

Anritsu Test Equipment - RF Cafe