Independence Day Observances and Philadelphia Centennial Plans
The piece surveys Fourth of July celebration themes in 1924 America, highlighting patriotism and world observances. It notes Monroe Doctrine centennial plans, Monroe and Liberty Bell history, and Philadelphia sesquicentennial preparations including a grand 1926 exposition with new international features and film programs.
MENTIONED IN THIS ARTICLE
Wyoming
James Monroe
United States
Senate
Congressional Commission
National Committee of Celebration
New York
Washington
James Monroe Memorial Association and Foundation
Clemenceau
Lincoln
F. B. Gernerd
Pennsylvania
Allentown
Brandywine
Bethlehem
Pennsylvania Assembly
Philadelphia
Independence Hall
Delaware River
Trenton
Frederick Lenser
John Jacob Mickley
Christchurch
German Zions Reformed Church
Lehigh River
John Griesemer
Nicholas Fox
Michael Kolb
John Miller
Peter Rhoads
Ccity Hall
Supreme Court
Independence Square
Old City Hall
Fifth Street
City
Supreme Court of the United States
Trap to Eliminate 400 Meter Interference in Radio Sets
Article reports a wave trap design that suppresses 400 meter interference while preserving target 450 meter reception. Tests show 90 percent of interfering 400 meter signals vanish when tuned to 400 meters, with minimal impact on desired signals.
MENTIONED IN THIS ARTICLE
WMG
Stapy Bates
Webel
A Seuss
USS
Wy Unie US
Leaders in History as Book Salesmen Revealed
A Chicago meeting of subscription book publishers cited prominent Americans who once sold books door to door. Examples include George Waczington delivering orders on horseback, General Grant selling Life of Columbus, Webster funding Dartmouth tuition, and Napoleon canvassing L Histoire de la Revolution.
MENTIONED IN THIS ARTICLE
Chicago
George Waczington
General Grant
Washington Irving
Columbus
Daniel Webster
Dartmouth College
Weems
Life of
Washington
de Tocqueville
America
Napoleon Bonaparte
L’histoire de la Revolution
Branch
Louvre
Paris
Napoleon
Blydell
Thomas Brackett Reed
George Peabody
Arthur E. Sheldon
Charles P. Steinmetz
Jay Gould
Wall Street
Bird banding traces migratory routes since 1710
The note recalls early practice of attaching rings to birds' legs to study migration, a method documented as far back as 1710. This brief history sketches how researchers tracked movements using leg bands.
Bracing Method for Aerial Pole on Ridge Roof
An illustrated method uses a 20 foot two by four mounted on a 20 foot building end to brace an aerial when a fourth guy wire anchor is unavailable. A truss brace plus a near ground turn buckle keeps wires taut, with this setup surviving several storms that toppled other aerials.
Army tests radios in tanks at Aberdeen proving grounds
Special tanks with radio telephone and telegraph sets were recently tested by the United States Army at the Aberdeen Maryland proving grounds. The exercise showcased mobile communications in armored units and highlighted advancements in battlefield interoperability.
MENTIONED IN THIS ARTICLE
United States Army
Aberdeen
Maryland
Wire End Connection Replaces Lug for Sturdy Bonds
A copper wire end or bushing can be flattened and a hole drilled to fit a small nut or binding post. This method replaces soldering a lug and creates a permanent secure connection that remains neat under a nut without solder or exposed flaps.
Amateurs Report Far Reaching Crystal Radio Signals
Notebook notes describe crystal set enthusiasts receiving broadcasts up to 1000 miles. They warn fading signals are common and not easily remedied. Tiny sets fit in a safety match box but are toy-like and unsuitable for home use. Modern radio cabinets feature close fitting doors.
Not Wanted Si Radio Big Feet Family Shoes
A fragment discusses a radio line about not wanting more children and having big feet in the family. It references buying shoes and a sense of existing family size. The language shifts between boastful and humorous undertone about footwear and kin.
Reflex Circuits Gain Steam in Radio Technology
Reflex circuits are the latest development in radio, using a single vacuum tube to amplify both radio and audio frequencies. This design allows clearer sound with less distortion, uses fewer tubes reducing cost, extends battery life, and provides sharp tuning that minimizes interference.
Must Have Transformers
A compact statement asserting transformers are essential, arguing amplification depends on transformer use, with emphasis on core role of transformers in enabling signal gain and system efficiency.
Hints to Amateurs on Wind Your Own Cardboard Vario Coilers
Practical tips for winding variometer and coupler wires on cardboard tubes. Dry by warm oven, coat inside and out with shellac, apply extra coat for gloss, secure ends through edge holes, paint with wood alcohol to bond wire to tube, air dry away from fire. Alcohol softens shellac and helps the coating grip the cotton covering, securing wires for couplers and varimeters though not suitable for slider tuning coils.
Grid Leak Reduces Radio Hiss and Frying Noise
An article explains using a grid leak across the secondary of the final filter transformer to cut hiss and frying sounds in amateur radio receivers without greatly lowering signal strength. It notes inked pencil marks can work, but black drawing ink yields best results.
Mounting a W. P. 11 Tube Socket From Bakelite Parts
A scarce W. P. 11 or peanut tube socket can be improvised using a three inch square bakelite piece four binding posts and spring brass wire. The coil contacts wrap around a nail for three small contacts and a larger spike for the grid contact with the inside coils brightened for good contact. The springy wire tolerates shock and the socket functions well.
SHORT CIRCUITS AND THE RADIO CLUB PIN IDEA
An eastern radio club seeks a suitable club pin design while noting the appeal of radio to youth. Doctor De Forest says radio fires imagination and readers are urged to consider the broad impact beyond personal expenses.
Weather, Thunderstorms, and Radio Audibility Link
Nebraska Wesleyan University research using weather bureau thunderstorm reports finds no link between barometric pressure and radio audibility. High static and nearby storm areas reduce reception at the receiving station.
MENTIONED IN THIS ARTICLE
Nebraska Wesleyan University
Weather Bureau
Silent night radio links across borders gain long distance reach
Four major broadcasting stations in Philadelphia have agreed to a monthly silent night. During these hours listeners may attempt long-distance messages, as important border communication points are now linked by radio.
MENTIONED IN THIS ARTICLE
United States
Canada
Mexico
Philadelphia
Day and Night Radio Propagation Advantage Noted
Darkness is estimated to be 70 percent more suitable for radio transmission and reception than daylight, highlighting how night conditions improve signal propagation and clarity for communications.
Also Mentioned on This Page
Ohm Nickincom Sherefman
United &Tyees
Gothenburg
Sweden
Earth
Frank W. Mondall
Waujers
Congress
Cleveland
McWinley
Roosevelt
Taft
Wilson
Harding
Reed
Henderson
Cannon
Clark
Gillett
Orient
Panama
Lonror OF
Clatsion
Linderwood B& Landerwood
Vwiave
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