Reflex circuit debate and Latour five-tube radio design
A report on the practicability of the reflex circuit patented in 1917 by Marius Latour. The description covers a four tube arrangement with RF transformers and an audio detector, plus issues with capacity effects and grid condenser misfires. It notes better results from oscillation transformers and mentions Atlanta Journal in Toledo testing the circuit, with the standard five-tube design still preferred.
MENTIONED IN THIS ARTICLE
Marius Latour
Atlanta Journal
Toledo
Radio
Outdoor Aerial Grounding Advice for Weather Safety
The article instructs radio users to ground aerials to prevent static buildup and lightning discharge. It recommends installing a single pole double throw switch outside the building, sized to the aerial, with the aerial connected to the switch middle post and ground and receiver to the outer posts. During storms or nonuse, set the switch to the grounded position.
MENTIONED IN THIS ARTICLE
Chiropractors and Clinical Journal
Making a Small Condenser from Wire Coils
Wire grid condensers and small condensers can be quickly assembled by twisting insulated wires into a splice. Extending the splice increases condenser capacity, enhancing the unit's overall storage.
Radio the Power of the Future and Its Destiny
A practical joker’s debate topic about The Future of Electricity leads to reflection on radio’s past, present, and vast potential. The piece notes radio’s already pervasive presence and asserts it will forge its own path, likely peaceful and beneficial to many worldwide.
MENTIONED IN THIS ARTICLE
Society of Engineers
Somme
Dresumer
Compact TTR condensers for rugged tape-wrapped use
TTR densers can be made of any value by connecting them in series and parallel in different combinations. These condensers are very compact and when wrapy 2d wit a piece of tape they will stand the hardest kind of rough usage.
Method of Eliminating Some Capacity Effects
A wooden dowel rod about a quarter inch in diameter and twelve inches long serves as a handle for turning knobs. A pencil eraser attachment fits over a pencil end and is placed on one end of the rod to form a vernier for precise adjustments.
Must Have Station License
The Department of Commerce requires every transmitting station to hold a station license or amateur operator's license. Licenses are obtainable only by examination.
MENTIONED IN THIS ARTICLE
Department of Commerce
Last to Leave Sinking Ship Tradition Grows in U S
Radio men stay with the captain as the ship sinks, a tradition noted in the United States. The practice emphasizes loyalty and duty among crew during disasters and may influence future maritime safety culture.
MENTIONED IN THIS ARTICLE
United States
How to Keep Wire Tight After Coil Wound
A method for maintaining tight coil windings. Warm copper wire before and during winding to leverage thermal contraction. Heat the ends, wind the coil, and reheat as needed. Secure ends to prevent loosening. After cooling to room temperature the winding stays tight and smooth.
Radio Aids Students in Shorthand and Typing Training
Radio broadcasting proves increasingly useful in education as shorthand and typing students gain new learning aids. The article notes daily lessons and practical applications within classrooms.
Eraser Tip Adjustment Guide
The text explains adjusting an eraser tip by aligning the eraser end with the dial edge and twisting the rod. It notes tapering the eraser with sandpaper before use to prep the tip for use on the market tool.
French Tax Sets and Censorship Decree
A government decree requires each owner of a receiving set to pay 10 francs annually, maintain secrecy on intercepted messages, and cease operations when directed by authorities. The measure signals broader controls on communications technology and surveillance.
MENTIONED IN THIS ARTICLE
Irench
Radio Dictation Era Aids Speed For Writers
The passage notes writers improve speed by radio dictation while those who relied on family readers to transcribe their shorthand marks understand its benefit. It contrasts ether addresses, shorthand symbols, and the dash dot curve method with radio dictation's efficiency.
Compact Receiving Sets Reduce Interference
For compact sets the receiving components should not crowd space. Interaction between coils and transformers causes signal loss. If portability is needed, place transformers at right angles and arrange uncoupled coil windings to minimize mutual interference.
That B Battery and D Battery Phrase Echoes in Text
A line notes that a B battery term appears while a D battery may also appear. it states one does not always imply a sting, though it can occur in some contexts. The remark contrasts two battery names and their differing associations.
DX-Flex Tuning Simplified by Coupling
The DX-Flex tuning can largely be done with the coupling control. By setting coupling near the 20 degree position and tuning the primary taps and secondary condenser for 360 meters, the wavelength rises uniformly as coupling decreases. This method offers easy tuning for home users while maintaining acceptable selectivity across 360 to 400 meter bands.
Proper Shape for Resistance Spring
A phosphor bronze contact piece for the Flewel ling variable leak cure is shaped to ensure a gradual change in resistance. The beam is analyzed as a supported member to illustrate this principle.
Uniform contact piece for consistent stress in triangle ends
The device should have a triangular end with uniform thickness to ensure even stress. It suggests shaping the contact piece so the end near the adjusting screw lifts from the resistance unit before the supporting end.
Potentiometer Used for Selective Tuning In Radio Circuits
The article discusses using a potentiometer to achieve precise tuning in gas content vacuum tube circuits. It notes the instrument is placed across the filament battery and provides a sketch showing the proper connection. The potentiometer allows close adjustment of the plate circuit battery potential, consuming 0.02 amperes.
Dead Spots in the Ether Challenge U S Radio Links
Government scientists investigate elusive dead spots between several U S cities forming a barrier to direct radio messages. Researchers study atmospheric conditions and signal paths to identify causes and possible remedies.
MENTIONED IN THIS ARTICLE
United States
Make Variable Grid Leak From Rheostat Inexpensive fix
Old rheostats with loose or broken resistance wire can be repurposed into a variable grid leak. Pry out the fiber ring, remove the wire, replace the ring, smooth the contact surface, and mark it around with a pencil. Attach a marking to a binding post and vary resistance by turning the knob on the panel.
Coupling Between Tuning Coils Affects Tuning Sharpness
The degree of coupling between tuning coils does not depend on distance. Tight coupling reduces interference and yields sharper tuning, while loose coupling broadens the response and allows more stations to be heard.
Hats of Varied Types Adorn Summer Gowns
A description of summer hats and lace trimmed gowns showcasing Milan hats with velvet, lace and crepe de chine gowns. It highlights hat shapes from bonnet-like crepe georgette designs to leghorn trims, and notes color pairings such as sand, Cleopatra blue, cocoa or gray with matching accessories.
MENTIONED IN THIS ARTICLE
Milan
How to Get Results in Buying Pattern
Prepared by the United States Department of Agriculture the guide covers choosing pattern sizes by age or measurement and notes how to lengthen or shorten patterns. It stresses reading the directions, layout on fabric, minimizing waste, and calculating material needs for garments.
MENTIONED IN THIS ARTICLE
United States Department of Agriculture
Tidiness Makes Ironing Day Easier
The United States Department of Agriculture advises a tidy ironing setup to reduce fatigue. A steady board at the right height, a clotheshorse, and a near stove improve efficiency. Use smooth irons, iron fabrics with the grain, and iron silks and wools with care to keep garments clean and crease-free.
MENTIONED IN THIS ARTICLE
United States Department of Agriculture
Tiered Evening Gowns Pleasingly Adapted for Youthful Styles
A tiered treatment enhances youthful evening gowns with models in blue shades and many in traditional honey colored taffeta. The collection highlights tiered silhouettes and vintage fabrics appealing to a younger audience.
Perfume Lamps in Boudoir Range
Perfume burners combine electric lamps with incense devices in many shapes colors and sizes. They are described as fashionable accessories for modern boudoirs.
Prints in Vogue For Silk Frocks And Decor
A rough surfaced silk with a gold stenciled pattern offers numerous uses for dresses and home decor. The article highlights versatility and stylish appeal in fashion and interior design.
Apron Mode in Silks On Silk Street Fashion
Apron mode appears frequently in silk street and afternoon dress. These aprons are often soft black flat crepe edged with cream colored lace and arranged in graduated form for a delicate layered look.
Ventilated Bread Boxes and Storage Advice
The U S Department of Agriculture urges housewives to ventilate bread in a box to prevent mold from moisture. Do not wrap hot bread immediately. scald the box weekly, wipe dry, and sun. Crackers and cookies lose crispness from moisture and should be kept in airtight boxes wrapped in parchment or paraffin paper.
MENTIONED IN THIS ARTICLE
United States Department of Agriculture
Salt in Frying Fat Boosts Fish Flavor
A cooking tip notes that sprinkling a small amount of salt in the fat used to fry fish enhances its flavor. The advice emphasizes salt as a flavor booster during frying.
Keeps Away Moths With Gasoline Treatment
Advice advises applying gasoline to carpets with a sponge or brush to deter moths. The guidance focuses on chemical control for household pest prevention.
Ne Cerne for Clad Floors
Floors that are worn or offed regularly need no special care during spring housecleaning as recommended by experts.
Freshen White Enamel Beds With Warm Water and Kerosene
Advice on cleaning white enamel beds with warm water and kerosene. Rub the mixture over the enamel and wipe clean. The method is described as harmless to the enamel and suitable for refreshing surfaces.
Household Tips and Cookery Hints From Deslener
Cleaning and storage advice covers clothespin bags telephones and lemon uses. Prunes gain laxative strength with lemon peel while cooking. Wood marks fade with lemon. Grating suet saves time versus chopping. Aluminum pans shine after lemon juice treatment.
Also Mentioned on This Page
Tegqmeeg
Y Dougiae Wa
Rotoys Mdaor OF
Maaio Sesenhnaiaing
J. L. Goldsman
I.R.E.A
I.E.E
Iace
Ct. Brambes
Western Newspaper Union
Department of Agriculture
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