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Newspaper
Graettinger Times
Location
Graettinger, Iowa, United States of America
Date
Feb 19, 1925
Page
4
A technician explains voltmeters measure circuit voltage and warns nontechnical readers that they often misinterpret the device. The article describes a switching unit that reads across a car battery and each tube, detailing panel mounting, wiring, and a one hour installation. It notes cost and space considerations, and urges selecting a high quality voltmeter to protect tubes and extend life.
A simple device to wind inductances on bakelite or cardboard tubes without a lathe uses a wooden stick to mount the tube and wire spool. A cap from a drug store, matching the tube, holds the ends in place while the operator guides windings and rotates the tube.
A simple steel bar device creates a V shaped notch to strip insulation. A 3 inch long bar with 1 4 inch width and 3 4 inch thickness plus two holes for bench mounting grips insulated wire and pulls off the coating with a quick downward motion.
A fragment describes soldering a joint first, then wrapping with several radial throws and applying a layer of water‑proof tape to seal the joint. The wording is unclear and appears to be OCR garble from a technical repair note.
A loop device designed to turn freely with minimized wire drag uses two brass strips around a center post and two brass contact springs on a second post. The loop leads connect to the springs, reducing trouble and improving appearance, as described in Radio Digest.
Six Mexicans in a small town near the Ajugaimountain range heard the national anthem broadcast from Schenectady via WY, with clear volume. Florence Zamudio praised the reception, noting listeners could follow each instrument and sing along, paying homage to the nation.
A Philadelphia Public Ledger inspired device lets hobbyists build a simple tube saver to test for shorts in radio receivers. Constructed from bus wire, a burned vacuum tube base, an eight volt lamp, and wax sealed in a tube socket, it warns if the A battery is applied across filaments by burning the small lamp instead of an expensive tube.
A frame dwelling affords greater radio range and volume than an apartment with a steel superstructure. Steel conducts and absorbs electromagnetic waves, reducing energy that reaches the antenna. Defective tubes cause battery drain by overloading current, with bootleg tubes sometimes drawing two to three times standard current and thinning capacity.
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