Vacuum Tube Oscillator Technology Described
The article explains a three electrode vacuum tube as an oscillator converting direct current to undamped alternating current across a wide frequency range from 0.5 to 150 million cycles per second. It notes undamped radio frequency sources for amateurs and discusses plate, grid, and tuned circuit interactions to sustain oscillations without runaway amplification.
MENTIONED IN THIS ARTICLE
John Walker Harrington
Pic
Anxvil
Static radio physics and a political notice in Malden
An old Radio Merchandising piece on static explains tuning three electrode tubes and coupling for amplified signals amid weather effects. The page also runs a political notice praising George S Harvey for Middlesex district attorney bid, detailing his career and endorsements.
MENTIONED IN THIS ARTICLE
George Stanley Harvey
Maple St. Malden
Harvey
William H
Jorge E. Smith
Massachusetts Senate
Massachusetts
Supreme Court
United States
Malden
The
Knights
Elks
Henry FE. Hurtburt
Middlesex County
Aiken
Hurlburt
Raymond
Superior Court
Radio The Buffalo News notes growing wireless zeal and police use
The Buffalo News reports on kiss like wireless chargers and travelless honeymoons via radio. Chicago plans 368000 to expand police radio gear while St Louis installs roof receiving sets for concerts. Canada sees sales surge. US weekly radio spending tops 85 million. engineers find jobs through the Federated American Engineering Societies.
MENTIONED IN THIS ARTICLE
The
Buffalo News
Niagara
Chicago
Chicage
St. Luis
United States
Canada
Bhocom
Acre
Federated American Engineering Societies
Farm ad for five acres near Boston offers fruit and chicken houses
A small farm listing advertises a five acre tract twenty miles from Boston with fruit trees and henhouses for 600 hens. It invites contact via Tate & Wisher at 258 Washington St Boston or West Acton Massachusetts with phone numbers Main 3365 and West Acton 70 day or night.
MENTIONED IN THIS ARTICLE
Boston
Tate & Wisher
Washington St
West Acton
Mass
Acton
Lost Book Notice in Middlesex County Records
According to law a notice is published that Book No. 21959 has been sent. The record mentions Treasurers and Concord Massachusetts and a Book No. 4959 in the Middlesex records.
MENTIONED IN THIS ARTICLE
Middlesex County
Jttlle
Harvey
Massachutts
Beary L
Middlesex
Ti. V. Smith
Concord
Mares
Sevewen
Massachusetts
Daybridge
Concord Enterprise
Commonwealth of Massachusetts
Catherine A. Burke
John J. i
Cambridge
Iaiq
Also Mentioned on This Page
Herbert Nealey
A. C. Frizzle Soncord
Alt
W. L. Aldred Concord Junction
Tel
Douphlin’s
Summer St
Maynard
M. S
Manzer
St. Concord, 150
Depot Square
E. W. Steickland
Bedford
Auto Service
Chevrolet
Mason and Firestone Tire and Tubes
Middlesex Garage, Inc
Great Road
Irvin’ H. Puffer
Silverman
Main St
Harry Waitz
Boston Dye House
South Street
Geo. H. Gutteridge
Nason St
Boye
C. W. Carlson
Commonwealth Avenue
Concord Junction
Ang Gente
Waterman
Eversharp
GEO
Nason Street
Westinghouse
Charles Lent , Main
Eino Edwards
Acton Fair
Town Hall
Hewitt & Hicks
Commonwealth Ave
L. W. Jones Telephone
Marlboro, Mass
Jaques
Walter Furmin
Richfield Springs
N.Y
Jaquen
Johnson’s Pharmacy
Jaques Capsule Co
Plattsburg, N. Y
Campbell
Westinghouse Battery Agency
Mason Rires
Edward & Lent
U. S. Navy
Navy
Cord Post Office
Wood & Timber
C. A. Durkee
DR. Lquis. Sullivan
John Pinoletto
Prop
River St
Perkins & Wells
Hubbard ST
Herbert W. Martin
Tel. Con
Concord St
F. M. Esty
Ister
Waldo P. Lapham
F. M
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