Dual Variometer Tuner for RF Amplification
A method proposes converting a standard variometer into a dual RF tuned-impedance transformer by splitting stator and rotor windings and wiring halves in series. Two variometers then provide simultaneous inductance changes for two RF stages, with fixed capacitors across each to tailor frequency coverage. Figure 1–Radio News illustrates the connections.
MENTIONED IN THIS ARTICLE
Radio News
How to Lengthen Life of Your B Batteries
The article explains how to extend B battery life through careful handling and avoiding high temperatures. It warns against dropping the battery, short circuits, and using ammeters for testing, recommending voltmeters to measure voltage without draining energy.
MENTIONED IN THIS ARTICLE
Hattery
Cheapest and Simplest Regenerative Receiver
A historic note describes a low cost regenerative receiver with a variometer, a 23 plate vernier condenser, a switch lever and two contacts. It claims the design is simple yet efficient and suitable for amateur use across wavelengths from short to 500 meters, with a basic antenna and vacuum tube forming the essential build.
MENTIONED IN THIS ARTICLE
Lipanving
Regeneration in Radio Receiver Tickler Coil Setup
The inside leads or rotor coil of the variometer connect to the plate circuit of the vacuum tube to form a tickler coil. Regeneration is controlled by adjusting the rotor coil. For lower wavelengths move the switch to contact 1 and to contact 2 for higher waves. A practical stunt worth trying.
Fix Catwhisker for Crystal Detectors
To keep a crystal detector in perfect adjustment locate the most sensitive spot with a buzzer test. When the catwhisker is properly placed, apply hot beeswax around it. This method maintains the whisker position for months and avoids re locating the sensitive spot each time the set is used.
Insulating Leads in Radio Sets
Insulating leads prevents interference by separating crossing wires. Do not run any leads parallel for any length and slip a few inches of spaghetti or another insulating material where leads cross.
Simple and cheap grid leak for radios described
A water barrel resistance substitute offers adjustable resistance from thousands of ohms to megohms. Fill a bottle with water, fit a cork with wires and a glass tube, and adjust by moving the wire inside the tube. Salt or denatured alcohol can tailor resistance. the device is silent, weather resistant, and holds setting.
MENTIONED IN THIS ARTICLE
New York Globe
A A S To Save Drilling Hole Through Window Sill
A 14 inch brass or copper strip is cut into two pieces of 15 inches each with holes at their ends. Placed across the window sill the strips let the window close while remaining insulated with paraffin. Bindings posts connect to antenna and ground with a safety No 4 wire gap.
Hailey BD Mystery Reads As Fragments Drift In
Fragmentary text from an old page shows scattered phrases about a light and a comment on Hailey BD. The readable lines hint at cryptic notes rather than a full event, leaving the broader story unclear.
The Art of Baking Bread Booklet Offer
A quirky ad style item invites readers to send for a free booklet titled The Art of Baking Bread. A dialog line mentions roses and thorns and an exchange about orchids, with Miss Cayenne weighing in on the banter.
Cuticura Ads for Pimples and Clear Skin Routine
An advertisement promotes Cuticura Ointment to remove pimples and blackheads. It advises washing with Cuticura Soap in five minutes, then daily use of the products for clear skin, and to include Cuticura Talcum in the routine.
A Hard-Working Man Celebrated by Jud Tunkin
Jud Tunkins says one of the hardest working men he knows is famed for being the life of the party and for his good nature. He highlights enduring energy and social leadership as key traits.
MENTIONED IN THIS ARTICLE
Jud Tunkins
Keep a Box on Hand Brandreth Pills Safety Ad
Advertises Brandreth Pills as a safe reliable laxative made in America for ninety years and entirely vegetable.
MENTIONED IN THIS ARTICLE
America
The Better Way Reflects on Credit for Trying
A thoughtful opinion argues a kinder approach to failure, praising effort over blame and envisioning a pleasanter world where trying is acknowledged. The piece advocates constructive responses to setbacks and encourages recognizing striving in individuals.
Cascarets for Liver and Bowels 10c Box Ad
Advertisement for Cascarets claiming cures for biliousness constipation sick headache and indigestion. Mentions drug stores and a dressed public attention campaign. The text presents a classic early 20th century tone and product promotion.
If Life Is a Burden to You It Harms Neighbors
An axiom suggests personal misery spreads to those nearby, implying that burdensome attitudes or behavior harm community well being and provoke social friction among neighbors.
California Fig Syrup Ad Claims Gentle Liver Cure
A vintage advertisement touts genuine California Fig Syrup as a harmless laxative to clean the liver and bowels of babies and children. It promises easy dosing without griping, notes no narcotics, and warns against counterfeit products with the phrase Say California to your own.
MENTIONED IN THIS ARTICLE
California
Actors and Actresses as Superior Judges of Nature
A concise opinion states that skilled performers excel in judging human nature by portraying it. It argues acting requires deep insight into behavior and emotion, making actors uniquely adept at reading people.
Prices of Cotton and Linen Doubled by War
The note says war has doubled prices of cotton and linen and suggests extending their service by using Red Cross Ball Blue in laundry. A grocers advertisement appears.
Fortunate is the map who knows how big a fool he can be
Satirical line about self awareness and risk taking. The speaker reflects on recognizing personal folly when one does not attempt or test limits.
Also Mentioned on This Page
Lane
A. L. Munzig
Douglas Wardrop
Radio Merchandising
U.F
Gap Plain
GEST
Hailey
Miss Cayenne
Northwestern Yeast Co
North Ashland Ave
Chicago, Ill
Lumbago
Bayer
Smith Brothers
Menthol