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The Old Timer's Bulletin (OTB)

Periodical   Volume 31Number 3October 1990

created by: Robert Rydzewski (11.Feb.14)
Page Content
created by
Robert Rydzewski
  • Experimental Regenerative Receiver Using Kenopliotron Tube
  
created by
Robert Rydzewski
  • Silent Keys: John J. Nagle (K4KJ); Reo de Pew (WD5HLZ)
  
created by
Robert Rydzewski
  • Early Equipment Profile: Albert W. Hull's Kenopliotron: Born Too Soon?
  • Pliotron Receiving Circuit; Same Circuit with Kenotron Incorp. In Pliotron
  
created by
Robert Rydzewski
  • Single Tube Radio Assembled By E.F. Hennelly At GE Schenectady 5-25-23
  
created by
Robert Rydzewski
  • How Did de Forest Invent the Grid Audion?
  • Early Single-Ended, Mostly UV-Based Vacuum Tubes
  
11 
created by
Robert Rydzewski
  • Improved Cross-Index of Army VT Numberss and Commercial Identifiers
  
12 
created by
Robert Rydzewski
  • List of VT Numbers and Their Corresponding Non-Military Tube Numbers
  
14 
created by
Robert Rydzewski
  • Meet the Collectors: Western Electric 444A & 463A Traveling-Wave Tubes
  
15 
created by
Robert Rydzewski
  • TV Receiver: Bell Labs Developmental CRT in AWA Museum
  • Gerry Tyne and "The Tube", 1965
  
16 
created by
Robert Rydzewski
  • Tube Being Assembled, 1941
  • C.J.Calbick and Friend, ca. 1937
  
17 
created by
Robert Rydzewski
  • Tips on Collecting Antique Incandescent Lamps
  • Main Innovations of the Incandescent Lamp
  
18 
created by
Robert Rydzewski
  • Antique Incandescent Lamps
  
19 
created by
Robert Rydzewski
  • A.E.G. Incandescent Lamp; Beacon Lamps; B & T Regulating Socket Ads
  
20 
created by
Robert Rydzewski
  • Vacuum Tube: RMA Code for Special-Purpose Tubes & Solid St Devices
  
21 
created by
Robert Rydzewski
  • Amateur radio: My Conversation with Fessenden
  
28 
created by
Robert Rydzewski
  • 100th Anniversary of Armstrong's Birth
  • Dr. E.H. Armstrong Portrait; Seated at 1940s Christmas Party
  • W2XMN Radio Tower, Still in Use
  
29 
created by
Robert Rydzewski
  • Western Electric "D-Spec" Tubes
  • Early Western Electric D-91143 Tube
  
30 
created by
Robert Rydzewski
  • Recent Obits: William C. Applegate; Ralph Beaudin; Harly P. Brinsfield
  • RO: Rev. Cecil Clifton; Arlen Craig; Bob Danvers-Walker; Benton Demlung
  • RO: Pauline Frederick; Jay Gorney; Albert A. Grobe; Wallace Haynes; Paul H. Hershey
  • RO: Irving Hunter; Francis R. Kirton; Roland L. LaLanne; Theodore J. Lydecker
  • RO: Lois R. Marsh; Harold Moss; John Quakenbos; Michael Raffetto; Virgil C. Roberts
  • RO: Albert Rose; Elton Rule; Byron F. Ryan; Bob Shea; Jeffry Sprung; Tony St. James
  • RO: Brian White; Rita Jacobs Willens; Martha Workman; Charlotte Wright
  
31 
created by
Robert Rydzewski
  • Restoring Old Equipment: Building a Repair Stock of Tubes
  
32 
created by
Robert Rydzewski
  • Philco 41-788 "Tropic" Radio
  
33 
created by
Robert Rydzewski
  • Communications Rcvr: Navy Model RAS Rcvr: Thinly Disguised HRO Jr?
  
35 
created by
Robert Rydzewski
  • A Cigar-Box Radio
  
37 
created by
Robert Rydzewski
  • Key & Telegraph
  • 1902 Yetman Transmitter
  • Vibroplex Collector's Guide
  
38 
created by
Robert Rydzewski
  • Mailbag: Hot-Chassis Sets; Fixing AC-DC Radios
  
39 
created by
Robert Rydzewski
  • Loudspeaker: Saal Horn Speakers
  
40 
created by
Robert Rydzewski
  • Telecommunication: Curie Discovered More Than Ra; Cycles to Hertz
  
41 
created by
Robert Rydzewski
  • Transistor Rcvrs: Channel Master 6506
  
47 
created by
Robert Rydzewski
  • Fixing Up Nice Old Radios
  • Titanic: R.I.P
  • Classic Plastic Radios of the 1930s & 1940s: Coll Guide to Catalin Models
  • Dreamer Who Made Us Fall in Love with the Future
  • 1990 Price Guide: Vintage TVs, Catalin, Novelty, Mirror Radios
  • Crosley Deflectron Tubes
  

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