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This newspaper page contains 10 articles. Subscribers can read the full text of each article.
Newspaper
Graettinger Times
Location
Graettinger, Iowa, United States of America
Date
Feb 19, 1925
Page
10
A technician explains voltmeters measure voltage in circuits and praises a combined unit with a switchable bank to read battery and each tube. It warns against many meters on a panel, suggests a single meter with a five-position switch for off battery 1st 2nd and 3rd tube readings, and outlines simple mounting and wiring steps.
In the absence of a lathe winding inductances on bakelite or cardboard tubes becomes easy by mounting the tube and wire spool on a small wooden stick. A head to retain the tube from a drug store matches the tube size. The spool and head are fixed to a board with nails and winding is done with hands free.
A simple hand tool uses a V-shaped notch and curved edges on a flat steel bar to strip wire insulation. A bar eight inches long and one and a half inches wide with holes below the slot clamps to a workbench, guiding the wire into the slot where sharp edges cut the insulation as the holder is pulled downward.
An unclear OCR fragment discusses antenna joints and soldering, mentioning wrapping with foil and layered protection. The text is garbled and lacks coherent details or names.
A device is described to allow a loop to rotate fully with no wire interference. Brass strips form two contact springs on post B, connected to the loop, secured by screws. Leads soldered to springs reduce trouble and improve appearance, as noted in Radio Digest.
Six Mexicans stood in a market stall near the Ajidco mountains to honor the United States by listening to WGY broadcasting The Star Spangled Banner from Schenectady. A reader Moreneld Zamudio praised the clear sound and volume, noting the nation’s anthem was heard by all as homage to a patron with such a station.
A Philadelphia Public Ledger report describes a simple home made tester for radio tube short circuits. Built from bus wire, an old B battery, a used vacuum tube, and an eight volt flashlight lamp, the device lets fans see a tube short or failure briefly before burning out.
Instructions describe converting a burned out vacuum tube into a tester with a wax sealed base, a Christmas tree lamp socket, and a small eight volt flashlight lamp. The guide warns to avoid cross wiring of B batteries across filaments and suggests voltage checks with a DY or WD type tube to ensure correct dry cell operation.
A radio set in a frame dwelling often picks up greater distances and louder signals than one in an apartment due to the building’s steel structure. The steel framework conducts and absorbs electromagnetic waves, reducing the energy that would reach the antenna.
Defective tubes are major causes of batteries running down early. Many faulty tubes draw excessive plate current, bootleg tubes pull two to three times the current of standard ones, risking damage and premature failure.
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