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created by
Robert Rydzewski
- Frost Musette Horn Speaker
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created by
Robert Rydzewski
- Silent Keys: David M. Eller (N1AYU); Lloyd E. Furrow; Horace Gross (W1AB)
- SK: Bill Lightfoot (W1PEG); Fred Shunaman (N2JLO); Fred R. Williams
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created by
Robert Rydzewski
- Restoring a 67-1/2 Volt Battery
AuthorBabcock
- Info Items
- Photograph
- Article
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| 8 |
created by
Robert Rydzewski
- A Simple Battery Eliminator
AuthorHager
Detail / Commentmake from diodes, caps
- Info Items
- Article
- Schematic
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created by
Robert Rydzewski
- A Simple A & B Power Supply
AuthorRyan
Detail / Commentfrom 9V, 1.5V batteries
- Info Items
- Photograph
- Article
- Make Your Own 45-V Battery
AuthorDennison
Detail / Commentfrom 30 D-cells
- Info Items
- Diagram or Drawing
- Photograph
- Article
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| 11 |
created by
Robert Rydzewski
- Loudspeaker: H.H. Frost, CTS, & the Musette Radio Horn Speaker
Editor / ReviewerPaul
- Info Items
- Photograph
- Article
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| 12 |
created by
Robert Rydzewski
- WW I Navy Equipment-Identification System
Detail / Commentletter codes for mfrs
- Info Items
- Article
- Table, Figure, or Graph
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| 13 |
created by
Robert Rydzewski
- Early Eqpt Profile: Navy CG-1104A Aircraft Transmitter
Editor / ReviewerPeckham
- Info Items
- Photograph
- Article
- Schematic
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| 14 |
created by
Robert Rydzewski
- A Long Way From Home: Majestic 59
AuthorKasch
- Info Items
- Photograph
- Article
- Schematic
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| 15 |
created by
Robert Rydzewski
- Vacuum Tube: Majestic & the Spray-Shield Tube
Editor / ReviewerDowd
- Info Items
- Photograph
- Article
- Table, Figure, or Graph
- Majestic 58S, 6Y5, & 6E7 Tubes
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| 17 |
created by
Robert Rydzewski
- What's it Worth?" - Then & Now
Detail / Comment1961 vs 1991 prices, in 1991 dollars
- Info Items
- Table, Figure, or Graph
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| 18 |
created by
Robert Rydzewski
- Wireless to Rent: First Marconi Marine Transmitters on Shortwave
AuthorThackeray
- Info Items
- Diagram or Drawing
- Article
- Table, Figure, or Graph
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| 19 |
created by
Robert Rydzewski
- Calculated Reactance Characteristics of 1900 Marconi Jigger Secondary and Vertical Antenna
- Info Items
- Table, Figure, or Graph
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| 20 |
created by
Robert Rydzewski
- ARRL Communications Dept Observers Notification Form from 1937
- Info Items
- Diagram or Drawing
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| 21 |
created by
Robert Rydzewski
- Loewe Valves Revisited
AuthorLeggatt
- Info Items
- Diagram or Drawing
- Article
- Schematic
- Loewe EB100 2-Band, AC-Powered Regenerator with Phono Input
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| 22 |
created by
Robert Rydzewski
- Loewe EB100 Rear View
- Info Items
- Diagram or Drawing
- Loewe 2H3N
Detail / Commentthree-dialer, not a flu strain
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created by
Robert Rydzewski
- Loewe 2H3N Schematic
- Substituting for Loewe Tubes
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| 26 |
created by
Robert Rydzewski
- WD-11 Tube
- Info Items
- Diagram or Drawing
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| 31 |
created by
Robert Rydzewski
- Mailbag: Cheap Caps; DIY TV; Shipping Tubes…
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| 32 |
created by
Robert Rydzewski
- Equipment Restoration: Removing Mold; Safety Test
AuthorSmith, RosicaEditor / ReviewerSibley
- Info Items
- Diagram or Drawing
- Article
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| 33 |
created by
Robert Rydzewski
- Bowman Technical School
AuthorDuBois, Jr.
Detail / CommentLancaster, PA
- Info Items
- Photograph
- Article
- Receiver for NAA on 2500 Meters
Detail / Commenttime signal for watchmakers
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| 34 |
created by
Robert Rydzewski
- Key & Telegraph: Constructing Historic Keys
Editor / ReviewerMoreau
- Info Items
- Photograph
- Article
- Codetrol Semiautomatic, Invented by Bernard Breedlove in 1951
- Western Electric 7B "Upside Down" Test-Desk Key
- Key Found in Wrecked German Tank Near Munich in March 1945
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| 35 |
created by
Robert Rydzewski
- Dictogrand "Roll" Speaker
AuthorKraeuter
- Info Items
- Photograph
- Article
- The BC-655
AuthorMills
Detail / Commenttransmitter
- Info Items
- Photograph
- Article
- Schematic
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created by
Robert Rydzewski
- Tubes in the R1155 Receiver
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| 37 |
created by
Robert Rydzewski
- Zenith Product Code Since 1949
AuthorZimmerman
- Info Items
- Article
- Table, Figure, or Graph
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| 39 |
created by
Robert Rydzewski
- The General Electric M-81
AuthorOwens
- Info Items
- Photograph
- Article
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| 40 |
created by
Robert Rydzewski
- Meet the Collectors: Recreating the Emerson BB-209
AuthorSchrock
- Info Items
- Photograph
- Article
- Schematic
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| 42 |
created by
Robert Rydzewski
- Communication Receiver: "All-Star Senior" - A Depression Receiver
AuthorBohlander
- Info Items
- Photograph
- Article
- Schematic
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| 44 |
created by
Robert Rydzewski
- An HRO Story
AuthorTannenbaum
- Info Items
- Photograph
- Article
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| 46 |
created by
Robert Rydzewski
- The RDG: An Unusual HRO-Derivative
AuthorDouglas/Sibley
- Info Items
- Diagram or Drawing
- Photograph
- Article
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| 53 |
created by
Robert Rydzewski
- Recent Obits: Arthur Baum; Cecil Effinger; Jack Feldman; John E. Fetzer
- RO: Dr. Karen Gross Glen; R.A. Jeu Devine; Edgar F. Johnson; Harry T. Montgomery
- RO: William H. Rule; Robert Strunsky; Albert J. Sylk; George V. Waldo; Jim Walsh
- RO: Karl Otto Wyler; William Wright Bryan
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| 54 |
created by
Robert Rydzewski
- The Horn Speaker Notebook
AuthorPaulEditor / ReviewerPaul
- More Golden Age of Radio
AuthorStokesEditor / ReviewerKelley
- A Transistor History Bonanza!
AuthorSharpeEditor / ReviewerMcMahon
- The Trouble Is Not In Your Set
AuthorKelleyEditor / ReviewerKelley
- 1991 Vintage Audioi & Radio Catalog
AuthorVintage WirelessEditor / ReviewerKelley
- New Wireless Pioneers Catalog No. 8
AuthorKreuzerEditor / ReviewerKelley
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| 55 |
created by
Robert Rydzewski
- Crystal Clear
AuthorSieversEditor / ReviewerKelley
- The Hallicrafters Story, 1933-1975
Authorde HenselerEditor / ReviewerKelley
- The Setmakers: A History of the Radio & Television Industry
- Lawlor's Radio Values: Catalin, Character, Mirrored, Novelty, Plastic
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