Outdoor radio aerial guidance for strong signals and selectivity
Practical instructions describe the ideal outdoor aerial from 50 to 150 feet, including lead-in, to improve volume and selectivity in congested areas. It advises placement 10 to 20 feet above surroundings, away from trees and lines, and details installation tips such as cross angles, insulators, direct lead-in, and safe clearances.
High-Mu Tubes Improve Resistance and Impedance Amplifiers
Discussion from Radio Broadcast magazine quoting Keith Henney on high amplification constant tubes. High mu tubes avoid excess B battery needs in resistance and impedance amplifiers, with transformer coupling enabling desired input voltage changes. Plate impedance and filament efficiency differ by year, affecting oscillation and neutralization in low versus high impedance sets.
MENTIONED IN THIS ARTICLE
Keith Henney
Radio Broadcast Magazine
Forefathers of Radio and the Audion Tube
The article traces the invention of radio telegraphy and credit Lee DeForest with developing the audion tube. It explains its role as detector and amplifier, enabling voice and music transmission and reception. It distinguishes radio-frequency and audio-frequency amplifiers in early radio sets.
MENTIONED IN THIS ARTICLE
Atlantic Ocean
Lee DeForest
Marconi
Picard
How to Tell Whether Receiver Is at Fault
The article explains that noise and distortion may come from transmission rather than the receiver. Check by listening to several stations. if others come in cleanly, the fault is at the broadcasting station, not your set.
MENTIONED IN THIS ARTICLE
O. K
Big Additions to National Forests
The National Forest Reservation Commission reports purchases totaling 247,067 acres at 4.80 per acre across 248 tracts in ten states. White Mountain adds 21,619 acres at 13.06 per acre, Allegheny adds 30,025 acres at 3.54, boosting consolidated holdings and fire protection systems.
MENTIONED IN THIS ARTICLE
Washington
National Forest Reservation Commission
National Forests
Commission
White Mountain National Forest
White Mountain
New England
Allegheny Forest
Public cooperation and education key to forest fire protection
The Shenandoah forest in Virginia shows how farmer support and ranger guidance foster rapid fire detection and suppression. In less cooperative regions, officials fight fire with law enforcement and public education to shift local sentiment away from wood burning and toward prevention, arguing for extended forest service resources for a sustained campaign.
MENTIONED IN THIS ARTICLE
Shenandoah Forest
Virginia
Shenandoah
Forest Service
Hawaiian Girl of 7 Saves 2 From Sea
Violet Kauka seven year old Hawaiian girl becomes a community heroine after diving into the sea to rescue her younger sister and a playmate who drifted from shore in a rowboat. She swam a quarter mile, grabbed a rope, and towed both children to safety. She learned to swim at age five.
MENTIONED IN THIS ARTICLE
Hilo
T. H
Violet Kauka
Violet
Also Mentioned on This Page
George Lewis
The
Crosley Radio Corporation
Eastern National Forests
Paulina Longworth
Speaker
Nicholas Longworth
Fort MacArthur
San Pedro
Cal