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The Old Timer's Bulletin (OTB)

Periodical   Volume 32Number 1May 1991

created by: Robert Rydzewski (11.Feb.14)
Page Content
created by
Robert Rydzewski
  • 20-kW Longwave Transmitter Built by GE for United Fruit Co., Circa 1923
  
created by
Robert Rydzewski
  • Cover Photo: Longwave Transmitter
  
created by
Robert Rydzewski
  • Library in AWA Museum Annex
  
created by
Robert Rydzewski
  • Collecting Early Single Sideband Equipment
  • Central Electronics 10A Exciter and Model A Receiver Adapter
  
created by
Robert Rydzewski
  • Table of Early SSB Transmitters and Receivers
  
created by
Robert Rydzewski
  • Table of SSB Transceivers, 1965 or Earlier
  
11 
created by
Robert Rydzewski
  • Biographical History of the AR88, RCA's "World Class" Communications Receiver
  
12 
created by
Robert Rydzewski
  • Lester Fowler
  
15 
created by
Robert Rydzewski
  • Origin of the BC-191/BC-375
  • RT-76-A Transmitter
  
16 
created by
Robert Rydzewski
  • Restoring Old Eqpt: Comm. Receivers in Rider's & Sam's
  • Table of Rider's & Sam's Schematics for Comm. Receivers
  
18 
created by
Robert Rydzewski
  • RCA-ARB-ATB Memoirs
  
20 
created by
Robert Rydzewski
  • Table of Components of the ATB
  
21 
created by
Robert Rydzewski
  • A "Modern" (1915) Shipboard Spark Transmitter
  • Spark Transmitter Shown in Electrical Experimenter, Dec. 1915
  
22 
created by
Robert Rydzewski
  • Basic Spark Transmitter; Quenched Gap; Rotary Gap; Waveforms
  
23 
created by
Robert Rydzewski
  • Mailbag: Fragile Oldie Tubes
  
24 
created by
Robert Rydzewski
  • More on the R1155
  • Lancaster Bomber, Toronto
  
25 
created by
Robert Rydzewski
  • TV Receiver: "Our Lady of Television"
  • PARS Helps KDKA Celebrate its 70th Birthday
  
26 
created by
Robert Rydzewski
  • Photo of Early KDKA Transmission; Photo of 70th Birthday Recreation
  
27 
created by
Robert Rydzewski
  • Amateur Radio: Amateur Station 9TL in 1919
  • Old-time Statio KI6QE with 1935-style Hallicrafters SX-9, Transmitter
  
29 
created by
Robert Rydzewski
  • Early Eqpt Profile: A Quality Portable Radio in 1925
  • Operadio "Portable
  
30 
created by
Robert Rydzewski
  • Vacuum Tube: Many-Maker 201A; Collecting Tube-Test Labels
  
31 
created by
Robert Rydzewski
  • Loudspeaker: Winkler-Reichmann Co. & the Reichmann Co.
  • Winkler-Reichmann S-5 Horn Speaker
  
32 
created by
Robert Rydzewski
  • Winkler-Reichmann Thorophone (Thunderphone) Ad
  • Reichmann Model 9 Cone Design
  
33 
created by
Robert Rydzewski
  • Recent Obits: Benjamin Clapp; Peter Newland Dawes-Smith
  • RO: Armand Hammer; David E. Henderson; Floyd N. Lantzer; George M. Lohnes
  • RO: Russel Markert; William J. McKee (W1KC); Henry F. Poydar; Irvin Stewart
  • RO: Sir Ian Trethowan; Frank Voltaggio; Harry R. Wege
  • In-House: Call Letters, Swiss Museum, etc.
  • Silent Key: Capt. Irving Johnson
  
34 
created by
Robert Rydzewski
  • Key & Telegraph: Historical Keys
  • Telegraph Key Presented to President Truman
  • Telegraph Key Presented to President Eisenhower
  • Texas Telegraph Centennial Key Presented to President Eisenhower
  • Beardslee Dial-a-Letter Instrument
  
35 
created by
Robert Rydzewski
  • Telegraph Instrument Classification
  
38 
created by
Robert Rydzewski
  • Transistor Receivers: Evolution of a Classic - The Zenith Royal 500
  • Zenith Royal Models 500, 500D, 500E, 500H, 500L, 500N, 555N "Suncharger"
  
39 
created by
Robert Rydzewski
  • Zenith Royal Look-Alikes: Hudson, Grundig (1959), Ambassador (1961)
  
40 
created by
Robert Rydzewski
  • Meet the Collectors: Philco 38-12
  
41 
created by
Robert Rydzewski
  • Radios That Won't Quit
  
47 
created by
Robert Rydzewski
  • The Distant Vision: Romance & the Discovery of an Invisible Frontier
  • QTC: A Seagoing Officer's Scrapbook
  • The Birth of the Vacuum Tube
  
48 
created by
Robert Rydzewski
  • Historic Amplifier in AWA Museum
  

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