Vacuum tube as amplifier detailed study notes
A historical technical explainer discusses three-electrode vacuum tubes, their dual role as detectors and amplifiers, and how tube characteristic curves govern distortion and amplification. It explains how grid potential changes translate to plate current, the significance of the straight curve region, and how proper circuit design yields amplified signals without distortion.
TIPS TO RADIOISTS At Muncie Ind
A radio news item notes the frying noise in radio currents at Muncie and credits Gifford Pinchot with gaining by radio support for his Pennsylvania governor bid. It mentions a Chicago inventor claiming to contact spirits via radio and Portland officials seeking funds for police radio stations and car radios. Lord Northcliffe predicts radio transforming journalism like Linotype.
MENTIONED IN THIS ARTICLE
Muncie
Ind“ Bacon
Eas
Gifford Pinchot
Pennsylvania
Chicago
Police Department
Portland
Ore
Lord Northcliffe
Red Cross Exalts Roll Call Aid to Disabled Veterans
The American Red Cross outlines its role in aiding ex-service members, noting more than 2,679 chapters aiding veterans nationwide and a planned Roll Call from Armistice Day to Thanksgiving. It highlights government limits in handling individual cases and details large-scale expenditures and claims processed to secure rights and relief for disabled veterans and their families.
MENTIONED IN THIS ARTICLE
American Red Cross
United States
Red Cross
National
U. S. Veterans’ Bureau
National Headquarters 3
Post Office Department
Red Cross Organization
Watch Separator Action Improves Dairy Profits For Farmers
Iowa State College expert Finley warns cream separator adjustment saves butterfat lost in skim milk. He cites 0.8 to 0.2 percent fat loss per 1000 pounds milk, equating to eight pounds fat worth $0.40 per pound, aiding hog feed profits. September shows Dallas Cow Testing leading with 209 cows, 882 pounds milk and 24.7 pounds butterfat. silos rising and purebred bulls increasing. V-R Life ad ends.
MENTIONED IN THIS ARTICLE
Iowa
B. Finley
Iowa State College
Finley
Kossuth Cow Testing Association
Dallas Cow Testing Association
Wapsie Valley Association
Dubuque
V-R
Clean Up Feed Lots For Wood Fuel On Farms
Foresters at Iowa State College estimate farms waste wood from old fence posts and dead trees. Collecting and cutting scattered boards can reclaim heating material and improve farm appearance, potentially cutting fuel costs substantially.
MENTIONED IN THIS ARTICLE
Iowa State College
Doan's Kidney Pills Endorsed By Estherville Resident
Estherville resident Mrs. R C Roberts reports seven to eight years of use with good results. She says a hard day’s work causes backache and fatigue, but Doan's Kidney Pills relieve the pains and restore condition. Price 60c at Johnson's Drug Store and other dealers. Foster Milburn Co. Buffalo NY manufactures.
MENTIONED IN THIS ARTICLE
Dean
Estherville
R. C. Roberts
N. 2Nd St
Doan
Johnson’s Drug Store
Magnets Recover Cargo of Nails from Sea Bottom
A ship’s cargo of a million sails was recovered from the sea floor using a large lifting magnet. Many kegs containing the nails were broken, their contents scattered in the mud. Salvage workers retrieved the nails with the magnet, restoring valuable material from the wreck.
Sand Dunes Rise Along Atlantic Coast Worldwide
Wind built dunes along the Atlantic coast reach 5 to 40 feet, while larger formations occur elsewhere. Bermuda and the Bahamas boast dunes 100 to 200 feet high, illustrating global variation in dune scale.
MENTIONED IN THIS ARTICLE
Atlantic
Bermuda
Bahamas
Domestic Life Quouts On Bitter Ties In Commonwealth
Fragmentary quote speaks of domestic life as a fountain in life’s wilderness where one drinks truth with bitterness. Attributed to WilIfai Pend, the lines reflect a personal view on marriage and daily life. The source presents a reflective, literary fragment rather than a full article.
MENTIONED IN THIS ARTICLE
Ines
Wili- Fai
A Short History of Heliocentric Theory and Orbits
The text outlines the shift from a fixed earth to a sun-centered system, noting Copernicus around 1472 to 1543 and his foundation for planetary motion. Kepler refined with ellipses in three laws, then Newton showed gravity as the universal force governing all planetary motion.
MENTIONED IN THIS ARTICLE
Copernicus
Isaac Newton
Teamwork Emphasized At Football Match
A professor at a football game argues success comes from perfect cooperation with each player subordinating individuality to the team, while a football enthusiast counters that teamwork is the main factor.
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Fortertia
Mankato Commercial College
Mankato
Minn
Spirit Lake Produce Company
L,t.ca
MGR
Hansen’s Sanitary Milk Depot
H. H. Hansen