Self Exciting Tubes and Coupling in Oscillator Circuits
The text explains how a three element vacuum tube can generate undamped oscillations only with proper plate grid coupling and tuned circuits. It discusses how reducing coupling between cells L and 1 changes oscillation strength, the role of intermediate circuits M-N and K-Y to synchronize natural periods, and how a continuous transmitter uses an antenna circuit and adjustable inductances to vary wavelength and maximize power.
MENTIONED IN THIS ARTICLE
Aither Magnetic
Summer Slump as Boon to Radio Industry Says Expert
Interviewed in Radio Merchandising Jo seph D. R. Freed argues the summer radio slump benefits dealers and manufacturers. He notes the need for reliable, well-priced gear and strong dealer cooperation, while warning against overstocking and poor value.
MENTIONED IN THIS ARTICLE
Joseph D. R. Freed
Radio Merchandising
Rer Exiimyre
Wallingford News Roundup Highlights Local Events
American Legion boys draw solid crowd at Flashes of Action while a birthday party, church sermon, and Thanksgiving charity drive fill week. Estherville visitors attend birthday and basketball game. Wallingford Community Aid meets Dec 18 to assemble Christmas boxes. Gun Club hosts duck and goose shoot. numerous neighbors attend parties and visits across town.
MENTIONED IN THIS ARTICLE
American Legion
Carol Jean Crim
Estherville
Elenore Brown
Wallingford Community Aid Society
J. H. Morrice
Charles LeVall
Odessa Hanson
J. Heidecker
George Gunderson
Eatherville Gas
Wallingford
Colfax
Wm. Helgason
Ethreal Palmer
Armstrong
Hane
Otia Jorstad
Esther
Ville
Emil
Hanson
Graet‘tinger
Fred. LeVall
Morrice’s
Wallingford Gun Club
Archie Keith
Glenn Young
Julius Hanson
Mickelsen
Radio waves fuel lawsuits and chaos across the nation
A San Francisco divorce suit mocks radio mania as an eight year old Bobbie Garcia, Los Angeles’ youngest licensed operator, helps build the first Pacific coast station while Utah firms oppose commercial radio. Aiken South Carolina sees three children burned in a radio transformer fire as warnings spread about lightning and power currents. Farmers rely on radio price reports amid charges of false quotations by unscrupulous dealers in big cities.
MENTIONED IN THIS ARTICLE
Itgs
Marconi
Utah
San Francisco
Ives
Los Angeles
Bobbie Garcia
Pacific Coast
Aiken
8. C
National Board of Underwriters
Sunday Service at First Church of Christ Scientist
The First Church of Christ Scientist announces Sunday services at 11 oclock with a topic God the only Cause and Creator. Sunday School begins at 10. A free public reading room is open Wednesdays and Saturdays from 3 to 5 pm for reading, borrowing, or purchasing Bible and authorized Christian Science literature. All are invited. Thanksgiving service is at 11 am on Thursday, November 30. Public is cordially invited.
MENTIONED IN THIS ARTICLE
First Church OF Es
Christ, Scientist
Christian Science Church
Also Mentioned on This Page
Ers
Bartanna
Virginia Nelson
Mildred Gangsted
A. J. Kennedy
Perkins
Berew
Elsh
Wesh & Sons
Corderman
C. C. C. Club
Glenn Stevens
Madden
Mr. Madden
Mr.Madden
Charlie Christian
Elmer Micklebust
Grover -Ynberg
Graettinger
Sam Micklebust
Manauska
Minn
Avis Madden
James Welsh
John
Fenton
Halfa
Theodore Hanson
Nettie
Cleve Race
G. G. G. Club
Edwards Farm
Elis Corderman
Tindall
John Bosold
Helen Welsh
A. K. Shaw
Ringsted
le Masters
Mr. Shaw
Andy Buck
Farmers Union
Valdee Farm
Agency
Holeproof Hosiery
Boot Shop
R. S. McNeal
Mgr
Turkey
Canned Punkin
Sandven
Shephard
the Vindicator & Republican Publishers and Printers
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