Preventing Crystal Jarring on Detectors at Sea
The article describes a shock absorber rig for galena crystal detectors to prevent jarring by heavy footfalls doors and waves. A wooden base with nails, rubber bands, and a flexible cord stabilizes the detector, allowing near indefinite adjustment stability aboard ships in rough seas. It explains detector rectification, crystal behavior, and point tuning on curves for galena and carbondum crystals.
MENTIONED IN THIS ARTICLE
Shipping Board
Midocean
Ohm
Longer Life for Your Tubes and Radio Tone Quality
A 1920s radio column advises using minimum filament brightness for adequate signal audibility. Two stage receivers from distant stations can improve clarity without excessive filament heat. Preserve tone purity in voice and music, as faithful sound reproduction outweighs maximum loudness.
Radio School for Army Flyers Opens at Chanute Field
A new army radio school for air service radio operators and electricians is established at Chanute Field Illinois. It replaces Post Field Oklahoma and forms new radio instruction classes with modern devices for aerial work in both heavier and lighter than aircraft. Enlistments for radio training are now being accepted at Chanute Field.
MENTIONED IN THIS ARTICLE
Army Radio School
Air Service
Chanute Field
Illinois
Post Field
Oklahoma
Army Air Service
Vatican Uses Radio to Reach Knights in America
The Vatican made its first radio transmission to the United States sending a message from Pope Pius XI through Mgr. F Morgongini Daca to James A Flaherty of Philadelphia. The broadcast carried the pope’s approval of the Knights of Columbus and its million dollar welfare drive in Italy.
MENTIONED IN THIS ARTICLE
Vatican
United States
Pius XI
Mgr. F. Morgongini Daca
James A. Flaherty
Philadelphia
The
Knights of Columbus
Pope Pius
Italy
China Radio Plan Aims Four Wireless Stations
China announces a new radio program to build four wireless stations with Shanghai station designed to be larger than any existing in the country. Completion promises direct communication between the United States and China.
MENTIONED IN THIS ARTICLE
China
Shanghai
United States
Radio Sparks in Home life and Military Set Sales
A safety slogan for radio fans is discussed as a warning Live wire Dead man A divorced couple linked to radio exposure A South American info broadcast boosted US car orders Army reserves and National Guard in San Francisco can buy surplus receivers at 7 50 each Pending sale limited to military men The article also describes a varnished rotor shaft and varicoupler wiring to avoid sliding contacts and loosening dials
MENTIONED IN THIS ARTICLE
South America
United States
National Guard
San Francisco
Museum of the American Indian offers public access to vast native collections
The Museum of the American Indian at Broadway and 155th Street New York opens to the public with 1,800,000 specimens. Founder George G Heye led a modern, efficient exhibition system showing artifacts from U S and Alaska tribes, with synoptic displays and storage access for researchers.
MENTIONED IN THIS ARTICLE
Museum of the American Indian
Heye Foundation
New York City
George G. Heye
Broadway
One Hundred and Fifty-fifth Street
The
Hispanic Society
American Numismatic Society
American Geographic Society
Archer M. Huntington
St. Nicholas Avenue
Museum of the
United States
Alaska
Alaskan
Wilds
Arkansas
William Penn
New York
Manhattan
Southwest
Cibola
Canada
Also Mentioned on This Page
Heye Fourdertinn
Yucatan
Cortez
Mexico
Prefsor
Marshall H. Saville
Venus
Ecuador
Peru
Pizarro
Brazil
Veruea
Cuba
Museum
W. Hendricks
James B. Ford
F. Kingsbury Tiss
Minor C. Keith
B. Moore
F. K. Seward
Samuel Jr
Heye
Coiet
Island
B. C
This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!