Build a Two-Tube Short Wave Receiver For KDKA
Leo Hugo Kruger explains a compact two-tube short wave set costing about 15 dollars to hear KDKA directly. The design covers 60 to 150 meters with a long aerial optional. notes on components, tuning, and avoiding harmonics are given along with a parts list and panel dimensions.
MENTIONED IN THIS ARTICLE
Leo Hugo Kruger
Chicago Evening Post
KDKA
KDA
How Condenser and Choke Circuit Improves Audio Output
Radio receiver output is improved by placing a choke coil across the output with inductance 50 to 100 henrys. A four microfarad condenser in series with the loudspeaker allows alternating audio to pass while DC goes through the choke. This arrangement raises plate voltage capability and protects the speaker from burnout.
Regeneration improves regen receiver oscillation ease
A choke call with about 120 turns on a one inch diameter tube, wired in series with the plate circuit of a regenerative receiver, tends to make the set oscillate more readily and steadily.
Recharge Dry Cell Method
To recharge a dry cell bore two 1/4 inch holes three inches deep on opposite sides of the generator connection. Fill holes with cider vinegar and plug with paraffin.
Hints on Testing of Wet and Dry Batteries
Testing advice warns against using an ammeter on B batteries as it risks damaging the meter and shortening the battery life. Use a voltmeter for most checks, reserve brief ammeter use for large dry cells. Storage batteries require a hydrometer reading of electrolyte gravity to assess charge. High resistance voltmeters help determine the tube lighting voltage.
Fixed resistors and condensers improve audio amplifiers
Fixed resistance values of about 250 000 or 500 000 ohms and condensers of 0.0005 or 0.001 mfd placed in the secondaries of audio transformers can clarify reception and reduce treble exaggeration. Combinations of these components often convert a weak amplifier into a fairly acceptable one, though they do not fix faulty amplifier design.
Determine Receiver Noise Source By Testing Aerial Disconnect
To pinpoint noise in a radio receiver, disconnect the aerial and ground wires. If noise stays high even when broadcast music stops, the fault likely lies in the receiving set such as loose connections faulty batteries or a defective tube. Shake the ground wire near the connection to rule out a bad connection as the cause.
Tuning Short Waves by Tap Switching on Inductor
If your set cannot tune to short wavelengths, tap the secondary of the inductance coil on the filament side with a tap-switch arrangement. This lets you cut in and out at will to reach desired wavelengths.
Ground Substitute in Fence Action Noted
A ground substitute described as an efficient counterpoise is likened to a wire fence, forming a practical stand in for earth and providing stability through its protective function.
Harrison area notes lavish homecoming and visitors
Local records show C. H. Carpenter hosting Wednesday events for Carlton Center school staff, while numerous residents and relatives from Detroit Kalamazoo Mt. Pleasant and Grand Rapids visit family and attend social gatherings. Several marriages travel for ceremonies and many leave for work or return from trips as the community tracks motions and illnesses.
Local social visit reports from Southwest Greenwood area
Mr and Mrs Stuermer and family hosted Sunday guests including John Sanders and family at Mann Siding. Rev Baker from Brown Corners visited the Stuermer home. John Goble and family from Marion spent Sunday with John Bringold and family. The Bringolds visited Steve Haynak and Mr Erchmar Sunday evening and drove to Farwell and Clare on Monday.
MENTIONED IN THIS ARTICLE
Florence Borgerson
Lowell
Ralph E. Hughes
Hughes
John
Myr
Morris
Burkhead
Houghton Lake
Crampton
I. RB. Hampton
Gous
Jesse
Clare
Mae Calioan
Frost
Olive Darling
Flint
Detroit
M. M. van Every
Petosky
Leota Gardiner
Berfiadene Hughes
Mike Murphy
Felix Beauchamp
Franklin
Carence Ladd
Jackson
Agnes MacDonald
Royal Oak
Harrison
Fred Weatherhead
Mabel Rouse
Willis ‘Rouse
Temple
Arthur H. Rhodes
Walter Hudson
Midland
Leroy Darling
James and
LaVern
Darling
Gertrude S. Wilson
W. Leigh Wilson
Grand Rapids
Rev
A. W. Johnstone
Gertrude
Cadillac
Wilson Home
Phitney
Jack Snyder
Saginaw
Guy Light
Maude Smith
L. H. Gleveland
Helen Stark
Viola Parsons
St. Louis
Missouri
Irene Loveless
Vermont
Mr. Cleveland
Sarah K. Sweet
Emily Cleveland
Boyne City
S. A. Wilson
James van Deusen
Enstein
Buddy
Holly
Viola van Deusen
A. S. Crigier
Celia Cummins
Bertha Green
Gray
Longlake
Clarence Long
Bloomingdale
Harold Wilson
William Murphy
Idamary
Sarah McCann
Bernadene Hughes
Stuermer
John Sanders
Mann Siding
Baker
Brown Corners
John Goble
Marion
John Bringolds
John Bringold
Steve Haynak
Ice cream social boosts funds at South West Gilmore church
The ice cream social at the Christian church on Thursday evening drew a good crowd and raised $17.00 in proceeds. The Willing Workers group met that Thursday at Mrs. Verh Wooden’s home.
MENTIONED IN THIS ARTICLE
The
Christian Church
Greenwood Notes Sail Busy Family Visit and Local Work
Vernon resident Mrs Gladys Barber and her daughters Delma Dorothy and Beverely visit parents Mr and Mrs A VanBuskirk. Dale Mead returns from Owosso. Bertha Wolf to teach in Greenwood District No 2. Wm Clark hosts. road work near Ford farm. Shimmel hauled gravel for barn foundation. family chicken dinner at Van Buskirk.
MENTIONED IN THIS ARTICLE
Gladys Barber
Vernon
Delma
Dorothy
Beverely
Mrs.a. VanBuskirk
Cecil
Howard Mead
Owosso
H. A. Monroe
Bertha Wolf
Harrison
Greenwood
Wm. Clarks
Wm. Clark
A. VanBuskin
Dale Mead
Russell Chaffee
P. P. Chaffee
Clare
Leam Hoover
Ford Farm
Herbert Shimmel
H. Shimmel
Gilland
van Buskirk
Local social roundup from Sag inaw area hosts weekend visitors
Lake area residents share a忙 weekend with relatives across Michigan. Families from Sag inaw Reed City Clare Coleman Barryton Evart and Flint visited and traveled to Updegraff Basslake andParis while others attended school and sales events. Notables include Al Tryon Geo Scott Raymond Scott and Jennie Tryon among many.
MENTIONED IN THIS ARTICLE
Reed City
Monda
Scott
Jennie
Jackson
Hollie Laker
Cleveland
Raymond Scott
Calvin
Tryon
Gilmore
Pearl
al, Tryon
Geo. Scott
Owosso
Estel
Jimmie
Saginaw
Gladys Halstead
Stine
Camp Eagle
Matt Scott
Updegraff
Farwell
D. Scott
Clare
al. Bassett
Lizzie Rohn
Evart
Spe
Sanford
Will Mahan
Co. B. Mahan
Barryton
McGrain
S. Cornell
E. Holmes
Frank Holmes
Paris
Mich
S. Schermerhorn
Lansing
M. Oman
Nelson Bilyah
Little Son
Flint
Joe Crawford
Michigan Tops in Auto and Furniture Output in 1 Year
The Census Bureau reports Michigan produced goods valued at 3.87 billion dollars in one year. Michigan leads in automobile manufacturing and ranks second in furniture, with strong shows in paper paints varnishes calculating machines and breakfast foods. Ohio and Illinois follow with about five trillion in value each.
MENTIONED IN THIS ARTICLE
Michigan
United States Census Bureau
Washington
Ohio
Illinois
Also Mentioned on This Page
Horatio S.earchers
Rose City, Mich
Pol. Adv
Pero
Cecely Jontee
Caren
E. A. Anderson
Renee
Michigan Bell Telephone CO
C. H. Carpenter
Hastings
Carlton Center
Berry County
Alvin’ Budd
George Spencer
New Jersey
Frank Totten
Samuel Bruce
J. H. Bruce
Lem Hammersley
Hamilton
A. &. Crigier
Ben Carpenter
D. A. Woodward
Kalamazoo
Bernice Ten
Llewlyn Crane
Pat Carroll
Nellie McDonald
Charles Watson
Jas
Marion Caner
Louise. Fanning
Winnifred
Ann Abshier
South Bend
Ind
St. Joseph Hospital
Helen Fanning
N. EB. Ladd
Alma
Ladd
George Smith
Leo Barr
William Bruce
Jenniebelle
Mt. Pleasant
William Fosgett
Howard Harper
Wallace
Harper
Bridge Port
Conn
C. A. Nelson
Evelyn
Chicago
Elmer Amble
Zetetic Club
Ohio Tavern
Burtrand T. Kane
Allen Porter
Elwood
Indiana
Sarah R. Sweet
B. Merle Peet
Grand Adah
Chesaning
J. W. Vizard
Gerald
Pleasant Mills
Joseph Stevens
Wilson Richards
Polly
Jacob C. Ringle
Charles Weidner
Albert Archamboult
John Archamboult
Mae Nagle
Nelson Clarke
Gregory
Atty
John Quinn
Harry Campbell
Ionia
Carl Brown
Marion Johnson
Bernie
F. Hamptden
Elmer C. Clute
Neebish Island
Don L. Schaaf
Enza Budd
Burt Gleason
Mt. Clemens
Dean Gleason
Soo
Garnet Verther
Verther
Mr. Gleason
Walter Rhodes
Gene
J. ©. Albertson
Sears
Samuel Nichols
Nathanie
M. ‘L. McElvery
Gons Carl
Dale
Mrs. Lyons
Harl Fordyce
Uttle
Bobbie
Lewis’ Cook
Nellie Fordyce
Southwest
Northwest
F. S. Martin
Mark Carpenter
Jennie Tryon
Pearl Tryon
Fam
Michigan AT Work
Minnesota
Rissoliri
Iowa
Dominion
Canada
Copriiaar
Prast Nationac Bank
Detrom
Wisconsin